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334 KiB
334 KiB
| 1 | Abbreviation,Definition |
|---|---|
| 2 | 0D,obvious deed |
| 3 | 1AM,Air Mechanic 1st Class |
| 4 | 1D,One-Dimensional |
| 5 | 2AM,Air Mechanic 2nd Class |
| 6 | 2D, Two-dimensional |
| 7 | 2G, Second-generation mobile (cellular, wireless) telephone system |
| 8 | 2LA,Two Letter Acronym |
| 9 | 2Lt,2nd Lieutenant |
| 10 | 3AM,Air Mechanic 3rd Class |
| 11 | 3D, Three-Dimensional |
| 12 | 3G, Third-generation mobile telephone system |
| 13 | 3i, Investors In Industry (venture capitalists) |
| 14 | 3M, Minnesota Mining and Manufacturing Company |
| 15 | 4D, Four-Dimensional (usually three spatial plus one temporal dimension, sometimes four spatial ones) |
| 16 | 4G, Fourth-generation mobile telephone system |
| 17 | 4GL, Fourth-generation programming language |
| 18 | 4WD, Four-wheel drive |
| 19 | 5D,Five-Dimensional |
| 20 | 6D,Six-Dimensional |
| 21 | 7D,Seven-Dimensional |
| 22 | 8D,Eight-Dimensional |
| 23 | 9D,Nine-Dimensional |
| 24 | \a, Atto- |
| 25 | A, Ampere |
| 26 | A1C,Airman First Class |
| 27 | A4,many, including a European standard office paper size; see entry |
| 28 | A10, Atlantic 10 Conference |
| 29 | aa, Afar language (ISO 639-1 code) |
| 30 | aA, Attoampere |
| 31 | AA- achieved availability,Alcoholics Anonymous, Armed Forces Americas (postal symbol),Aruba (FIPS 10-4 territory code), assembly area,Automobile Association,avenue of approach |
| 32 | AAAI, Association for the Advancement of Artificial Intelligence, formerly American Association for Artificial Intelligence |
| 33 | AAAS, American Association for the Advancement of Science |
| 34 | AAAV, Advanced Amphibious Assault Vehicle |
| 35 | AAC- American Athletic Conference,Army Air Corps (British Army) |
| 36 | AAD- analogue-analogue-digital (CD quality),Australian Antarctic Division |
| 37 | AADD,Adult attention deficit disorder |
| 38 | AADT, annual average daily traffic |
| 39 | AADAC, Alberta Alcohol and Drug Abuse Commission |
| 40 | AADC- area air defense commander, amino acid decarboxylase, aromatic L-amino acid decarboxylase, Australian Antarctic Data Centre |
| 41 | AAFC- U.S. Army Air Corps Ferrying Command (1941-1942),All-America Football Conference (1946-1949) |
| 42 | AAFES, Army and Air Force Exchange Service |
| 43 | AAI, applied artificial intelligence |
| 44 | AAIS, advanced airborne interceptor simulator |
| 45 | AAM, air-to-air missile |
| 46 | AAMOF, as a matter of fact |
| 47 | AAN, American Academy of Nursing |
| 48 | AANEAS, Anglo-Australian Near-Earth Asteroid Survey |
| 49 | AAODL, Atmospheric Aerosols and Optics Data Library |
| 50 | AAP- advanced acquisition plan,Allied administrative publication,American Academy of Pediatrics |
| 51 | AAPC, Accounting and Auditing Policy Committee |
| 52 | aar, Afar language (ISO 639-2 code) |
| 53 | AAR- after-action review,Association of American Railroads |
| 54 | AARP,(i/s) American Association of Retired Persons (now officially known only by the initials) |
| 55 | AASPEM, advanced air-to-air system performance evaluation model |
| 56 | AAT, Australian Antarctic Territory |
| 57 | AAV, Amphibious Assault Vehicle |
| 58 | AAWC, anti-air warfare commander |
| 59 | ab, Abkhaz language (ISO 639-1 code) |
| 60 | AB- Able Seaman (both the rank and the occupation), Alberta (postal symbol) |
| 61 | ABA- Adriatic Basketball Association,American Bar Association,American Basketball Association,American Beverage Association,American Bicycle Association,American Birding Association,Australian Broadcasting Authority |
| 62 | ABB, ASEA Brown Boveri (Swiss-Swedish multinational company) |
| 63 | ABBA, Agnetha, Benny, Björn, Anni-Frid (Swedish pop group) |
| 64 | ABC- abstinence, be faithful, condoms,Active Body Control,airway, breathing, circulation (see CPR),Alcoholic Beverage Commission,alien big cat,always be careful,American Bird Conservancy,American-born Chinese,American Broadcasting Company,anti-lock brake controller,Associated British Corporation,Atanasoff-Berry Computer,Atlantic Baptist College,atomic, biological, chemical (see NBC),Australian Broadcasting Corporation |
| 65 | ABCA- American, British and Canadian Armies (originally),Army Bureau of Current Affairs |
| 66 | ABCS, (U.S.) Army Battle Command System |
| 67 | ABET, Accreditation Board for Engineering and Technology |
| 68 | ABFIST, Advanced Bradley Full Crew Interactive Skills Trainer |
| 69 | ABGI, Addington-Barker Group International |
| 70 | ABIN, Agência Brasileira de Inteligência (Brazilian Intelligence Agency) |
| 71 | abk, Abkhaz language (ISO 639-2 code) |
| 72 | ABL, American Basketball League |
| 73 | ABLE, AirBorne Law Enforcement (police air support unit) |
| 74 | ABM, anti-ballistic missile,Asynchronous Balanced Mode,automated banking machine |
| 75 | ABMC, American Battle Monuments Commission |
| 76 | ABN, Australian Business Number (a number issued by the Australian government as registration of a business and used for taxation purposes) |
| 77 | ABPI, Association of the British Pharmaceutical Industry |
| 78 | ABRSM, Associated Board of the Royal Schools of Music |
| 79 | ABS- acrylonitrile butadiene styrene,anti-lock braking system |
| 80 | ABSTRIPS, abstraction-based STRIPS |
| 81 | ABV, Alcohol by volume |
| 82 | ABW, Aruba (ISO 3166 trigram) |
| 83 | aC, Attocoulomb |
| 84 | Ac, Actinium |
| 85 | AC1,Aircraftman 1st Class |
| 86 | AC2,Aircraftman 2nd Class |
| 87 | ACARS, Aircraft Communications Addressing and Reporting System |
| 88 | ACAS- Aboriginal Children's Advancement Society,Advisory, Conciliation and Arbitration Service |
| 89 | ACCA- The Association of Chartered Certified Accountants,Automatic Cloud Cover Assessment |
| 90 | ACCAC, Awdurdod Cymwysterau, Cwricwlwm ac Asesu Cymru (Qualifications, Curriculum and Assessment Authority for Wales) |
| 91 | ACCD,American Coalition of Citizens with Disabilities |
| 92 | ACCS, Air Communications and Control Squadron |
| 93 | ACDA, Arms Control & Disarmament Agency |
| 94 | ACDC- Alternating Current Direct Current,the name of an Australian rock music band,a term for a bisexual person,A/Cdre,Air Commodore |
| 95 | ACDT- Apple Certified Desktop Technician, Australian Central Daylight Time |
| 96 | ACF- Administration for Children and Families,American Car and Foundry,American Culinary Federation |
| 97 | ACHT, Average Call Hold Time |
| 98 | ACINT, Acoustic Intelligence |
| 99 | ACK, Acknowledge (telecommunications; cf. NAK) |
| 100 | ACL- Access Control List,Anterior cruciate ligament; the initialism can also refer to an injury to this ligament.,Atlantic Coast Line Railroad |
| 101 | ACLJ, American Center for Law and Justice |
| 102 | ACLOS, Automatic CLOS (missile control system) |
| 103 | ACLS, American Council of Learned Societies |
| 104 | ACLU- American Civil Liberties Union,American Communist Lawyers Union (pejorative slang for the above) |
| 105 | ACM,many, including Association for Computing Machinery; see entry |
| 106 | ACMC, (U.S.) Assistant Commandant of the Marine Corps |
| 107 | ACN- Airborne Communications Node,Australian Company Number (number issued by the Australian government as registration of a limited liability company) |
| 108 | ACNA, Anglican Church in North America |
| 109 | ACO, Airspace Control Order |
| 110 | ACOBA, Advisory Committee on Business Appointments |
| 111 | ACOG, American College of Obstetricians and Gynecologists |
| 112 | ACOM, (U.S.) Atlantic Command |
| 113 | ACORN, Association of Community Organizations for Reform Now |
| 114 | ACP- African, Caribbean and Pacific Group of States,Air Control Point |
| 115 | ACR, Advanced Concepts and Requirements |
| 116 | ACRI, African Crisis Initiative |
| 117 | ACRT, Advanced Concepts Research Tool simulator |
| 118 | ACS- Affiliated Computer Services (NYSE ACS),Alaska Communications Service,American Cancer Society,American Chemical Society,Association of Caribbean States,Australian Computer Society |
| 119 | ACSC, Army Command and Staff College (various nations) |
| 120 | ACST, Australian Central Standard Time |
| 121 | ACST, American Cooperative School of Tunis |
| 122 | ACT- Adaptive Control of Thought (cognitive model),American College Test (ing Program),Australian Capital Territory (also postal symbol),ACT UP, AIDS Coalition to Unleash Power |
| 123 | ACTD, Advanced Concept Technology Demonstration |
| 124 | ACTF- (U.S.) Army Constructive Training Federation,Australian Children's Television Foundation,ACT-R, ACT-Rational (cognitive model),ACT-R/PM, ACT-R/Perceptual-Motor (cognitive model) |
| 125 | ACTU, Australian Council of Trade Unions |
| 126 | ACU, American Conservative Union |
| 127 | ACUF- BGN Advisory Committee on Undersea Features, American Conservative Union Foundation |
| 128 | ADA, Air Defence Artillery,American Dental Association,Assistant District Attorney,Americans with Disabilities Act (see also the similar but non-acronymic Ada programming language) |
| 129 | ADAGE, Air Defense Air to Ground Engagement (simulation) |
| 130 | ADAP, AIDS Drug Assistance Program |
| 131 | ADAS,(a/i) Asiago-DLR Asteroid Survey |
| 132 | ADAT, Alesis Digital Audio Tape (recording format) |
| 133 | ADatP, Automated Data Processing |
| 134 | ADATS, Agricultural Development and Training Society,Air Defence Anti-Tank System,Australian Defence Air Traffic System |
| 135 | ADB, Asian Development Bank |
| 136 | ADC, Aide De Camp,U.S. Air Defense Command (1946-1992),Apple Display Connector,Program Against Digital Counterfeiting of Currency |
| 137 | ADD, Analog Digital Digital (CD quality),Attention-Deficit Disorder,Administration on Developmental Disabilities |
| 138 | ADDIE, Analyze Design Develop Implement and Evaluate |
| 139 | ADDNS, Advanced Deployable Day/Night Simulation |
| 140 | ADF, Australian Defence Force,African Development Foundation |
| 141 | ADGB,Air Defence of Great Britain |
| 142 | ADHD, Attention-Deficit Hyperactivity Disorder |
| 143 | ADHS, Attention-Deficit Hyperactivity Syndrome |
| 144 | ADI, Acceptable/Allowable Daily Intake |
| 145 | ADIZ,(a/i) Air Defence Identification Zone |
| 146 | ADL, Anti-Defamation League |
| 147 | ADM, Administrative,,Admiral, and the U.S. Public Health Service Commissioned Corps,Archer Daniels Midland,Assistant Deputy Minister |
| 148 | ADOA,(a/i) Air Defence Operations Area |
| 149 | ADP, Adenosine DiPhosphate,Army Doctrine Publication (UK, Canada, Australia),Automatic/Automated Data Processing |
| 150 | ADRG, Arc-second Raster Chart (ARC) Digitized Raster Graphics |
| 151 | ADS,(a/i) Active Denial System,Astrophysics Data System,Attention Deficit Syndrome |
| 152 | ADSR, Attack, Decay, Sustain, Release (sound envelope specification) |
| 153 | ADT, Atlantic Daylight Time (UTC−3 hours) |
| 154 | ADTB, Army Doctrine and Training Bulletin |
| 155 | ADW, Air Defence Warning |
| 156 | ae, Avestan language (ISO 639-1 code) |
| 157 | AE- Armed Forces Africa/Canada/Europe/Middle East (postal symbol),United Arab Emirates (ISO 3166 digram; FIPS 10-4 country code), Artix Entertainment,American Eagle,A&E,(a/i) Arts & Entertainment Network, the original name for the U.S. TV channel now known as A&E Network |
| 158 | AED, United Arab Emirates dirham (ISO 4217 currency code) |
| 159 | AEDT, Australian Eastern Daylight Time |
| 160 | AEF, American Expeditionary Force |
| 161 | AEGIS, Airborne Early warning Ground environment Interface Segment (fake etymology) |
| 162 | AESR, Aeronautical Equipment Service Record |
| 163 | AEST, Australian Eastern Standard Time |
| 164 | aet, After extra time (Football) |
| 165 | AEW, Airborne Early Warning,Airborne Electronic Warfare |
| 166 | af, Afrikaans language (ISO 639-1 code) |
| 167 | aF, Attofarad |
| 168 | AF- Afghanistan (FIPS 10-4 country code; ISO 3166 digram), Air Force,As f*ck |
| 169 | AFAIC, As Far As I'm Concerned |
| 170 | AFAICT, As Far As I Can Tell |
| 171 | AFAIK, As Far As I Know |
| 172 | AFAIR, As Far As I Remember/Recall |
| 173 | AFATDS, Advanced Field Artillery Tactical Data System |
| 174 | AFC- American Football Conference,Asian Football Confederation |
| 175 | AFCEA, Armed Forces Communications and Electronics Association |
| 176 | AFDB, African Development Bank |
| 177 | AFES, Automatic Fire Extinguishing System |
| 178 | AFG, Afghanistan (ISO 3166 trigram) |
| 179 | AFIS- Automated Fingerprint Identification System,American Forces Information Service |
| 180 | AFIST, Abrams Full Crew Interactive Skills Trainer |
| 181 | AFJ, April Fool's Joke |
| 182 | AFK, Away From Keyboard (Internet chat abbreviation) |
| 183 | AFL- American Federation of Labor,American Football League — either the 1960s league that merged into the National Football League, or one of several other leagues of American football,Arena Football League,Australian Football League,AFL-CIO, American Federation of Labor,Congress of Industrial Organizations |
| 184 | AFLAC, American Family Life Assurance Company of Columbus |
| 185 | AFM, Army Field Manual (UK; the U.S. more frequently uses just FM),Atomic Force Microscope,Aviation Fleet Maintenance |
| 186 | AFN, Afghani (ISO 4217 currency code) |
| 187 | AFO, Association of Field Ornithologists |
| 188 | AFOSR, U.S. Air Force Office of Scientific Research |
| 189 | AFQT, Armed Forces Qualification Test |
| 190 | afr, Afrikaans language (ISO 639-2 code) |
| 191 | AFRC, Air Force Reserve Command |
| 192 | AFRL, Air Force Research Laboratory |
| 193 | AFROTC, Air Force Reserve Officer Training Corps |
| 194 | AFRRI,(i, U.S.) Armed Forces Radiobiology Research Institute |
| 195 | AFRTS, Armed Forces Radio and Television Service |
| 196 | AFS- Active Front Steering,Air Facility Sub-System,Amniotic Fluid-derived Stem cell,AFS&A or AFSA, U.S. Air Force Studies and Analysis |
| 197 | AFSC- U.S. Air Force Staff College (obsolete; replaced with JFSC),U.S. Air Force Systems Command |
| 198 | AFSCN, U.S. Air Force Satellite Control Network |
| 199 | AFSPC, Air Force Space Command |
| 200 | AFT,American Farmland Trust |
| 201 | AFV, armoured fighting vehicle |
| 202 | AFWA- Air Force Weather Agency,Association of Fish and Wildlife Agencies,AG[edit] |
| 203 | ag, Attogram |
| 204 | Ag, Silver (Latin argentum) |
| 205 | AGARD, Advisory Group for Aerospace Research and Development |
| 206 | AGARDograph, Advanced Guidance for Alliance Research and Development publication |
| 207 | AGASA, Akeno Giant Air Shower Array (cosmic ray detector) |
| 208 | AGB, Internal Nintendo initialism (Advanced Game Boy) for Game Boy Advance |
| 209 | AGC- Apollo Guidance Computer,Automatic Gain Control |
| 210 | AGC, Adjutant General's Corps (British Army) |
| 211 | AGDC, Australian Game Developers' Conference |
| 212 | AGI, Auxiliary Group Intelligence |
| 213 | AGL, Above Ground Level |
| 214 | AGM, Annual General Meeting |
| 215 | AGN, Active Galactic Nucleus |
| 216 | AGO, Angola (ISO 3166 trigram) |
| 217 | AGP, Accelerated Graphics Port |
| 218 | AGRICOLA, Agriculture Online Access |
| 219 | AGS, Alaska Ground Station (LandSat) |
| 220 | AGTS, Advanced Gunnery Training System |
| 221 | AGU, American Geophysical Union |
| 222 | AGW, Autonomous Guided Weapon |
| 223 | aH, Attohenry |
| 224 | Ah, Ampere-hour |
| 225 | AH, Attack Helicopter |
| 226 | AHA, American Heart Association |
| 227 | AHCPR, Agency for Health Care Policy and Research (obsolete; replaced with AHRQ) |
| 228 | AHEC, Australian Health Ethics Committee |
| 229 | AHPCRC, Army High Performance Computing Research Center |
| 230 | AHQ,Air Headquarters |
| 231 | AHRQ, Agency for Healthcare Research and Quality |
| 232 | AHS, American Housing Survey |
| 233 | AI- Air Interdiction,Amnesty International,Artificial Insemination,Artificial Intelligence, Anguilla (ISO 3166 digram) |
| 234 | AIA- Aerospace Industries Association,American Institute of Architects, Anguilla (ISO 3166 trigram) |
| 235 | AIAA, American Institute of Aeronautics and Astronautics |
| 236 | AIC- African Independent Church,Animal Identification Coordinator |
| 237 | AICD, Australian Institute of Company Directors |
| 238 | AICMFP, And I Claim My Five Pounds |
| 239 | AID, U.S. Agency for International Development |
| 240 | AIDS, Acquired Immune Deficiency Syndrome |
| 241 | AIM,many, including AOL Instant Messenger, Australian Institute of Management; see entry |
| 242 | AIMP, Aurora Incremental Modernization Project |
| 243 | AIPAC, American Israel Public Affairs Committee |
| 244 | AIR, Aircraft Inventory Record |
| 245 | AIRFA, American Indian Religious Freedom Act |
| 246 | AIRS,(a/i) Aerometric Information Retrieval System (obsolete; replaced with AFS) |
| 247 | AIS- Australian Institute of Sport,Automatic Identification System |
| 248 | AISB, (British Society for the Study of) Artificial Intelligence and the Simulation of Behaviour |
| 249 | aJ, Attojoule |
| 250 | AJ, Azerbaijan (FIPS 10-4 country code) |
| 251 | Ajax, Asynchronous JavaScript And XML |
| 252 | AJD, Astronomical Julian day |
| 253 | AJP, Allied Joint Publication |
| 254 | AJPW, All Japan Pro Wrestling |
| 255 | ak, Akan languages (ISO 639-1 code) |
| 256 | aK, Attokelvin |
| 257 | AK, Alaska (postal symbol) |
| 258 | aka, Akan languages (ISO 639-2 code) |
| 259 | AKA, Above knee amputation (orthopaedic usage) |
| 260 | AKDT, Alaska Standard Daylight Saving Time (UTC−8 hours) |
| 261 | AKST, Alaska Standard Time (UTC−9 hours) |
| 262 | aL, Attolitre |
| 263 | Al, Aluminium |
| 264 | ALA, Åland Islands (ISO 3166 trigram) |
| 265 | ALAP, As Long/Late As Possible |
| 266 | ALARM, Air-Launched Anti-Radar Missile |
| 267 | ALB, Albania (ISO 3166 trigram) |
| 268 | ALD, Accounting Line Designator (nuclear weapon targeting) |
| 269 | ALERT, Advanced Linked Extended Reconnaissance and Targeting,Attack and Launch Early Reporting to Theatre |
| 270 | ALF- Africa Leadership Forum,Alien Life Form (cf. ALF (TV series)),Animal Liberation Front |
| 271 | ALG, Algeria (IOC and FIFA trigram, but not ISO 3166) |
| 272 | ALGOL, ALGOrithmic Language |
| 273 | ALL, Albanian lek (ISO 4217 currency code) |
| 274 | ALOA, Associated Locksmiths of America, Inc. |
| 275 | ALOC- Air Lines Of Communication, Average Length of Calls |
| 276 | ALPA, Air Line Pilots Association |
| 277 | ALS, Amyotrophic Lateral Sclerosis,Automatic Landing System |
| 278 | ALSHS, Abraham Low Self-Help Systems |
| 279 | ALSP, Aggregate Level Simulation Protocol |
| 280 | ALTE, Association of Language Testers in Europe |
| 281 | am- Amharic language (ISO 639-1 code),Attometre |
| 282 | Am, Americium |
| 283 | AM-many, including Amplitude Modulation and Ante Meridiem; see entry, Armenia (FIPS 10-4 country code; ISO 3166 digram) |
| 284 | AM1,Airman 1st class |
| 285 | AMA- American Medical Association,Australian Medical Association |
| 286 | AMAPS, Aircraft, Missile, Avionics Performance Simulation |
| 287 | AMC- Adaptive modulation and coding (digital communications),U.S. Air Mobility Command,American Motors Corporation,American Movie Classics (TV network; now known simply by the initials),U.S. Army Materiel Command |
| 288 | AMCB, U.S. Army/Marine Corps Board |
| 289 | AMD- Advanced Micro Devices,Age-related Macular Degeneration, Armenian dram (ISO 4217 currency code) |
| 290 | AMFR- Age-specific Marital Fertility Rate,Amplitude Modulation Following Response |
| 291 | AMFRS- Advanced Multi-Function Radio Frequency System,Automatic Multisensor Feature-based Recognition System |
| 292 | amh, Amharic language (ISO 639-2 code) |
| 293 | AML, Acute Myeloid Leukaemia |
| 294 | AMLCD, Active Matrix Liquid Crystal Display |
| 295 | AMLO- Andrés Manuel López Obrador (Mexican politician),Anti-Money Laundering Office (Thailand government agency) |
| 296 | AMO, Atlantic Multidecadal Oscillation |
| 297 | AMOLED, Active-matrix organic light-emitting diode |
| 298 | AMOS- Advanced MOrtar System,Air Force Maui Optical and Supercomputing observatory |
| 299 | AMP- Adenosine MonoPhosphate,Automated Mission Planner |
| 300 | AMRAAM, Advanced Medium-Range Air-to-Air Missile |
| 301 | AMRDEC, U.S. Aviation & Missile Research, Development, & Engineering Center |
| 302 | AMS- Agriculture Marketing Service,American Mathematical Society |
| 303 | AMSAA,(i/a) U.S. Army Materiel Systems Analysis Activity |
| 304 | AMSO,(i/a) U.S. Army Model and Simulation Office |
| 305 | AMSU,Advanced Microwave Sounding Unit |
| 306 | AMTE, UK Admiralty Marine Technology Establishment (1977-1984) |
| 307 | an, Aragonese language (ISO 639-1 code) |
| 308 | aN, Attonewton |
| 309 | AN- Andorra (FIPS 10-4 country code),Netherlands Antilles (ISO 3166 digram) |
| 310 | ANA- Administration for Native Americans,Afghan National Army,All Nippon Airways,Anti-Nuclear Anti-body, Australian National Airways,Australian Natives' Association |
| 311 | ANC, African National Congress |
| 312 | AND, Andorra (ISO 3166 trigram) |
| 313 | ANFO, Ammonium nitrate/fuel oil (explosive) |
| 314 | ANG- Air National Guard, Angola (IOC and FIFA trigram, but not ISO 3166), Netherlands Antillian guilder (ISO 4217 currency code) |
| 315 | ANGLiCo, Air/Naval Gunfire Liaison Company |
| 316 | ANL, Argonne National Laboratory |
| 317 | ANM, Acoustic Noise Monitor |
| 318 | ANOVA, ANalysis Of VAriance |
| 319 | ANS, Applied and Natural Sciences |
| 320 | ANSI, American National Standards Institute |
| 321 | ANTM, America's Next Top Model |
| 322 | ANT- Netherlands Antilles (ISO 3166 trigram),Antigua and Barbuda (IOC trigram, but not ISO 3166 or FIFA) |
| 323 | ANTY,Acronyms, No Thank You |
| 324 | ANWR, Arctic National Wildlife Refuge /ˈænwɑr/ |
| 325 | ANZ, Australia and New Zealand Banking Group |
| 326 | ANZAC, Australian and New Zealand Army Corps |
| 327 | AO, Angola (FIPS 10-4 country code; ISO 3166 digram), Approach Officer (submarine),Area of Operations |
| 328 | AOA, Air Officer in charge of Administration,Argonne National Laboratory, Angolan kwanza (ISO 4217 currency code), Award Of Arms (heraldry) |
| 329 | AOC, Air Operations Centre,Air Officer Commanding |
| 330 | AOD, Adrenalin O.D. (punk rock band) |
| 331 | AOI, Angle Of Incidence Arab Organization for Industrialization |
| 332 | AOL, America OnLine |
| 333 | AOR, Area of Responsibility |
| 334 | AOSTH, Adventures of Sonic the Hedgehog |
| 335 | AOTS, Attack of the Show! |
| 336 | AOU, American Ornithologists' Union |
| 337 | AP- Advanced Placement,Air Publication, Andhra Pradesh (Indian state code), Armed Forces Pacific (postal symbol), Associated Press,Auto Pilot |
| 338 | APA - |
| 339 | APB, All Points Bulletin (police jargon) |
| 340 | APC- Armoured Personnel Carrier,Armour Piercing Capped (ammunition) |
| 341 | APEC, Asia Pacific Economic Cooperation |
| 342 | APCNR, Armour-Piercing, Composite Non-Rigid (ammunition) |
| 343 | APCR, Armour-Piercing, Composite Rigid (ammunition) |
| 344 | APDS, Armour-Piercing, Discarding-Sabot (ammunition) |
| 345 | APEDS, AMSAA Performance Estimates Data System |
| 346 | APEX, Applied Physics Express |
| 347 | APFSDS, Armour-Piercing, Fin-Stabilised, Discarding Sabot (ammunition) |
| 348 | APHA, American Public Health Association |
| 349 | APHE, Armour-Piercing, High Explosive (ammunition) |
| 350 | APHIS, Animal and Plant Health Inspection Service |
| 351 | API, Application Programming Interface |
| 352 | APL- A Programming Language,Acute Promyeloid Leukaemia,Anti-Personnel Landmine,Applied Physics Laboratory (Johns Hopkins University) |
| 353 | APM, Advanced Power Management |
| 354 | APOD, Aerial Port (Airport) Of Debarkation |
| 355 | APOE, Aerial Port (Airport) Of Embarkation |
| 356 | APOLLO, Apache Point Observatory Lunar Laser-ranging Operation |
| 357 | APP, Allied Procedural Publication |
| 358 | APR, Annual Percentage Rate |
| 359 | APS- Advanced Photo System (cf. APS-C, an image sensor format based on the size of the original APS film frame),American Physical Society,Antiphospholipid Antibody Syndrome,AQ[edit] |
| 360 | AQ- AdventureQuest, American Samoa (FIPS 10-4 territory code),Antarctica (ISO 3166 digram), Automatic qualifier, a term used by U.S. sports media from 1998 to 2013 to refer to the six conferences whose champions automatically entered the now-defunct Bowl Championship Series of college football |
| 361 | AQIM, Al-Qaeda in the Islamic Maghreb |
| 362 | ar, Arabic language (ISO 639-1 code) |
| 363 | Ar, Argon |
| 364 | AR, Argentina (FIPS 10-4 country code; ISO 3166 digram),Arkansas (postal symbol),Armour, Arunachal Pradesh (Indian state code) |
| 365 | ara, Arabic language (ISO 639-2 code) |
| 366 | ARAG, Advanced Research and Assessment Group |
| 367 | ARB, Administrative Review Board |
| 368 | ARBA,(a/i) Army Review Boards Agency |
| 369 | ARC, Arc-second Raster Chart,Appalachian Regional Commission |
| 370 | ARCA, Automobile Racing Club of America |
| 371 | ARCENT, United States Army Central Command |
| 372 | ARDA, Advanced Research and Development Activity (became DTO 2006) |
| 373 | ARE, UK Admiralty Research Establishment (-1991), United Arab Emirates (ISO 3166 trigram) |
| 374 | ARF, ASEAN Regional Forum |
| 375 | arg, Aragonese language (ISO 639-2 code) |
| 376 | ARG, Argentina (ISO 3166 trigram) |
| 377 | ARH, Armed Reconnaissance Helicopter |
| 378 | ARI, Acute Respiratory Infection,U.S. Army Research Institute for the Behavioral and Social Sciences |
| 379 | ARL, UK Admiralty Research Laboratory (1921-1977),U.S. Army Research Laboratory,UIUC Aviation Research Laboratory |
| 380 | ARM, Anti-Radiation Missile,Adjustable-rate mortgage, Armenia (ISO 3166 trigram) |
| 381 | ARNet, Acquisition Reform Network |
| 382 | ARP, Address Resolution Protocol,Applied Research Programme |
| 383 | ARPA, Advanced Research Projects Agency |
| 384 | ARRC, ACE Rapid Reaction Corps |
| 385 | ARRF, Allied Rapid Reaction Force |
| 386 | ARRL, American Radio Relay League |
| 387 | ARS, Agricultural Research Service, Argentine peso (ISO 4217 currency code) |
| 388 | ARSC, Arctic Region Supercomputing Center |
| 389 | ARSPACE, U.S. Army Space Command |
| 390 | ART, Adaptive Resonance Theory,Anti-Retroviral Therapy |
| 391 | ARTCC, Air Route Traffic Control Center |
| 392 | as, Adult swim, Assamese language (ISO 639-1 code),Attosecond |
| 393 | aS, Attosiemens |
| 394 | As, Arsenic |
| 395 | AS, American Samoa (postal symbol; ISO 3166 digram),Australia (FIPS 10-4 country code),Assam / Asom (Indian state code) |
| 396 | AS, ActionScript |
| 397 | ASA, AcetylSalicylic Acid,American Standards Association,Army Security Agency,Atlantic Southeast Airlines |
| 398 | ASAP, As Soon As Possible |
| 399 | ASARS, Advanced Synthetic Aperture Radar System,Airborne Search and Rescue System |
| 400 | ASB, Associated Student Body,Alternative Service Book (Church of England) |
| 401 | ASBO, Anti-Social Behaviour Order |
| 402 | ASCAP, American Society of Composers, Authors, and Publishers |
| 403 | ASCC, Army Service Component Commander,Automatic Sequence Controlled Calculator,Air Standardization Coordinating Committee |
| 404 | ASCII, American Standard Code for Information Interchange |
| 405 | ASD, (U.S.) Assistant Secretary of Defense,autism spectrum disorder |
| 406 | ASDIC, Allied Submarine Detection Investigation Committee (Sonar) |
| 407 | ASEAN, Association of Southeast Asian Nations |
| 408 | ASFAR, Americans for a Society Free of Age Restrictions |
| 409 | ASG, Area Support Group |
| 410 | ASIC, Australian Securities and Investments Commission, Aviation Security Identification Card |
| 411 | ASIO, Australian Security Intelligence Organisation, Audio stream input output |
| 412 | ASIP, Advanced System Improvement Program,Army Stationing and Installation Plan,Application-specific instruction-set processor |
| 413 | asm, Assamese language (ISO 639-2 code) |
| 414 | ASM, Air-to-Surface Missile, American Samoa (ISO 3166 trigram), American Society for Metals, American Society for Microbiology |
| 415 | ASMB, American Society for Matrix Biology,Adult Swim Message Board |
| 416 | ASME, American Society of Mechanical Engineers,American Society of Magazine ors |
| 417 | ASN, Associate of Science in Nursing |
| 418 | ASOC,(a/i) Air Sovereignty Operations Centre,Air Support Operations Centre,Airport Security and Operations Centre,Antarctic and Southern Ocean Coalition,Atlanta Symphony Orchestra Chorus,Australian Standard Offence Classification |
| 419 | ASP, Active Server Pages,American Society of Primatologists,Ammunition Supply Point,Application Service Provider (cf internet service provider),Astronomical Society of the Pacific,Association of Surfing Professionals |
| 420 | ASPI, Australian Strategic Policy Institute |
| 421 | ASR, Alkali-silica reaction,Anti Slip Regulation |
| 422 | ASRAAM, Advanced Short-Range Air-to-Air Missile |
| 423 | ASSC, Association for the Scientific Study of Consciousness |
| 424 | AST, Atlantic Standard Time (UTC−4 hours) |
| 425 | ASTIA, Armed Services Technical Information Agency |
| 426 | ASTM, American Society for Testing and Materials |
| 427 | ASTREA, Aerial Support To Regional Enforcement Agencies (sheriff's air support unit) |
| 428 | ASUW, AntiSUrface Warfare |
| 429 | ASVAB,Armed Services Vocational Aptitude Battery(taken by juniors in high school in the USA) |
| 430 | ASW, AntiSubmarine Warfare |
| 431 | ASWORG, (U.S.) AntiSubmarine Warfare Operations Research Group |
| 432 | ASX, Advanced Stream Redirector,Australian Securities Exchange |
| 433 | aT, Attotesla |
| 434 | At, Astatine |
| 435 | AT, Anti-Tank, Ashmore and Cartier Islands (FIPS 10-4 territory code),Austria (ISO 3166 digram), Advanced Technology (IBM Personal Computer/AT) |
| 436 | ATA, Advanced Technology Attachment (IBM Personal Computer),Afghan Transitional Authority,Allen Telescope Array, Antarctica (ISO 3166 trigram) |
| 437 | ATAC, Air Transportable Acoustic Communications |
| 438 | ATACMS, Army TACtical Missile System |
| 439 | ATAPI, Advanced Technology Attachment Packet Interface |
| 440 | ATAS, Air-To-Air Stinger (missile) |
| 441 | ATAT, Aiken Tactical Airsoft Team / Star Wars vehicle |
| 442 | ATB, Active Time Battle, British Antarctic Territory (ISO 3166 trigram; merged with AQ in 1979) |
| 443 | ATC, Air Traffic Control,Air Training Corps,U.S. Air Transport Command (1942-1948)- Athletic Trainer, Certified (www.nata.org) |
| 444 | ATCCIS, Army Tactical Command and Control Information System |
| 445 | ATESS, Aerospace and Telecommunications Engineering Support Squadron |
| 446 | ATG, Antigua and Barbuda (ISO 3166 and FIFA trigram) |
| 447 | ATGM, Anti-Tank Guided Missile |
| 448 | ATGW, Anti-Tank Guided Weapon |
| 449 | ATI, Allied Telesyn International, Inc., Array Technologies Incorporated. (ATI Technologies) |
| 450 | Atisbo,a Local Government Area in Nigeria named for constituent communities (Ago-Are, Tede, Irawo, Sabe, Baasi, Ofiki and Owo) |
| 451 | ATK, Attack |
| 452 | ATL, Atlanta, Georgia, the largest city and capital of Georgia |
| 453 | ATLAS, All-Terrain Lifter Army System, Assessment Tool for LAnd Systems |
| 454 | ATM, Automated Teller Machine,Asynchronous Transfer Mode,At The Moment |
| 455 | ATN, Dronning Maud Land (ISO 3166 trigram; merged with AQ in 1983) |
| 456 | ATO, Air Tasking Order,Australian Taxation Office |
| 457 | ATP, Adenosine TriPhosphate,Allied Tactical Publication,Ammunition Transfer Point |
| 458 | ATSD, (U.S.) Assistant Secretary of Defense |
| 459 | ATSDR, Agency for Toxic Substances and Disease Registry |
| 460 | ATV, All-Terrain Vehicle |
| 461 | ATWA, Air, Trees, Water, Animals |
| 462 | Au, Gold (Latin Aurum) |
| 463 | AU, African Union (was OAU before 2000),American University, Astronomical Unit,Australia (ISO 3166 digram),Austria (FIPS 10-4 country code) |
| 464 | AUD, Australian dollar (ISO 4217 currency code) |
| 465 | AUS, Australia (ISO 3166 trigram) |
| 466 | AUSCANNZUKUS, Australia, Canada, New Zealand, United Kingdom, United States (security designation) |
| 467 | Auslan, Australian Sign Language |
| 468 | AUT, Austria (ISO 3166 trigram) |
| 469 | AUTL, Army Universal Task List |
| 470 | av, Avar language (ISO 639-1 code) |
| 471 | aV, Attovolt |
| 472 | Av, Aperture value (photographic mode) |
| 473 | AV- Anguilla (FIPS 10-4 territory code), Audio-Visual, Aviation |
| 474 | ava, Avar language (ISO 639-2 code) |
| 475 | AVA, American Viticultural Area |
| 476 | AVB, Audio Video Bridging |
| 477 | AVDLR, Aviation Depot Level Repair |
| 478 | ave, Avestan language (ISO 639-2 code) |
| 479 | AVGP, Armoured Vehicle, General Purpose |
| 480 | AVI, Audio Video Interleave |
| 481 | AVIM, Aviation Intermediate Maintenance |
| 482 | AVLB, Armoured Vehicle Launched Body |
| 483 | AVM- Air Vice-Marshal, Arteriovenous malformation |
| 484 | AVO, Apprehended Violence Order |
| 485 | AVP, Arubaanse Volkspartij |
| 486 | AVP, Association of Volleyball Professionals |
| 487 | AVRE, Armoured Vehicle Royal Engineers |
| 488 | AVTB- Armoured Vehicle Test Bed, Aviation Test Bed |
| 489 | AVUM, Aviation Unit Maintenance |
| 490 | AVVO, Acute Vaginal Venereal Outbreak |
| 491 | aW, Attowatt |
| 492 | AW, Aruba (ISO 3166 digram) |
| 493 | AWA, American Wrestling Association |
| 494 | AWACS, Airborne Warning And Control System |
| 495 | AWC, Air Warfare Centre |
| 496 | AWD,many, including All Wheel Drive; see entry |
| 497 | AWE,(i/a) Advanced Warfighting Experiment |
| 498 | AWG, Aruban guilder (ISO 4217 currency code) |
| 499 | AWP, Awaiting Parts (SM&R code) |
| 500 | AWSIM, Air Warfare SIMulation |
| 501 | AWST, Australian Western Standard Time |
| 502 | AWW, Above Water Warfare |
| 503 | AX, Åland Islands (ISO 3166 digram) |
| 504 | AXP, Ambulance eXchange Point |
| 505 | ay, Aymara language (ISO 639-1 code) |
| 506 | AY, Antarctica (FIPS 10-4 territory code) |
| 507 | AYBABTU, All Your Base Are Belong To Us |
| 508 | aym, Aymara language (ISO 639-2 code) |
| 509 | AYU, As Yet Unknown |
| 510 | az, Azerbaijani language (ISO 639-1 code) |
| 511 | AZ- Arizona (postal symbol),Azerbaijan (ISO 3166 digram), Alkmaar Zaanstreek (Dutch football club) |
| 512 | aze, Azerbaijani language (ISO 639-2 code) |
| 513 | AZE, Azerbaijan (ISO 3166 trigram) |
| 514 | AZN, Azerbaijani manat (ISO 4217 currency code) |
| 515 | AZUR, Actions en zone urbaine (French, Urban Operations) |
| 516 | BAR- Barbados (IOC trigram, but not FIFA or ISO 3166), British American Racing,Browning Automatic Rifle,Buy-American Restrictions,BARD - Binational Agricultural Research and Development fund (between the US and Israel),BARDA - Biomedical Advanced Research and Development Agency,BART - Bay Area Rapid Transit,BAS - Battalion Aid Station,BASE - Building, Antenna, Span, Earth (parachute from),BASF - Badische Anilin und Soda Fabrik (Baden Aniline and Soda Factory, a German chemicals company),BASIC - Beginner's All-purpose Symbolic Instruction Code (acronym was added later, originally it was simply Basic),BAT - (a/i) Basic Aid Training,BATF - U.S. Bureau of Alcohol, Tobacco, and Firearms,BATS - Behavior Analysis Training System - Bradley Advanced Training System,BATTeRS - Bisei Asteroid Tracking Telescope for Rapid Survey,BB[edit] |
| 517 | BB- Barbados (ISO 3166 digram; FIPS 10-4 country code), Boys' Brigade (Christian youth organization),Brigitte Bardot (actress),Bumblebee |
| 518 | BBB- Better Business Bureau,Blood-brain barrier |
| 519 | BBC- Breeding Bird Census,British Broadcasting Corporation, Bumper to Back of Cab (trucking measurement) |
| 520 | BBD- Barbadian dollar (ISO 4217 currency code), Bowel Bladder Dysfunction |
| 521 | BBL- Be Back Later,Bird Banding Laboratory,British Basketball League,BBN - Bolt, Beranek and Newman,BBQ - Barbecue[1] |
| 522 | BBS- Breeding Bird Survey (North America),Brigade/Battalion Battle Simulation,Bulletin Board System,BBSRC - U.K. Biotechnology and Biological Sciences Research Council,BBVA - Banco Bilbao Vizcaya Argentaria (Spanish bank) |
| 523 | BBYO,B'nai B'rith Youth Organization |
| 524 | BC- Before Christ,Blind Copy (in emailers),Boston College, Botswana (FIPS 10-4 country code; from Bechuanaland),British Columbia (postal symbol) |
| 525 | BCA- Bachelor of Computer Application,Black Coaches & Administrators,BCC - Blind Carbon Copy |
| 526 | BCCI- Bank of Credit and Commerce International,Board of Control for Cricket in India,BCD - Binary-Coded Decimal |
| 527 | BEA- Banque extérieure d'Algérie,British European Airways (ancestor of British Airways),British Electricity Authority,bel - Belarusian language (ISO 639-2 code),BEL - Belgium (ISO 3166 trigram),BEM - British Empire Medal - Bug-Eyed Monster,ben - Bengali language (ISO 639-2 code),BEN - Benin (ISO 3166 trigram),BEO - Banquet Event Order,BERC - Business Environmental Resource Center,BER - Bit Error Rate |
| 528 | BH- Bahrain (ISO 3166 digram),Belize (FIPS 10-4 country code),BHD - Bahraini dinar (ISO 4217 currency code),BHR - Bahrain (ISO 3166 trigram) |
| 529 | BNF- Backus-Naur Form (computing),British National Formulary,BNICE - Biological, Nuclear, Incendiary, Chemical, and Explosive Agents |
| 530 | BNP- British National Party,Banque Nationale de Paris, a predecessor to today's BNP Paribas,BNS - Bank of Nova Scotia,BNSF - (i/s) Burlington Northern Santa Fe (also AAR reporting mark),BO[edit],bo - Tibetan language (ISO 639-1 code) |
| 531 | BO- Back Orifice, Belarus (FIPS 10-4 country code), Biarritz Olympique (French rugby union club), Bolivia (ISO 3166 digram), Body odor,BO2k - Back Orifice 2000,BOAC - British Overseas Airways Corporation (predecessor of British Airways) |
| 532 | BoAML,Bank of America Merrill Lynch |
| 533 | BOC- British Orthodontic Society,British Oxygen Company,BÖC - Blue Öyster Cult,bod - Tibetan language (ISO 639-2 code),BOD - Biochemical Oxygen Demand,BODMAS - Brackets, Orders, Division, Multiplication, Addition, Subtraction,BOFH - Bastard Operator From Hell,BOGA - Bend Over and Grab Ankles,BOGOF - Buy One, Get One Free |
| 534 | BOGs, Bunch of Guys |
| 535 | BOI- Balance Of Investment,Basis Of Issue,BOL - Bolivia (ISO 3166 trigram) |
| 536 | BOM- Base Object Model,Bill Of Materials,Block of the Month quilting term,Business opportunity meeting,BOP - Balance of Payments,BOPB - Biarritz Olympique Pays Basque (the complete name of the rugby club),BOPD - Barrel of Oil Per Day |
| 537 | BOQ- Bill Of Quotations,Bachelor Officers' Quarters,Bank Of Queensland,bos - Bosnian language (ISO 639-2 code),BOS - Battlefield Operating System |
| 538 | BOT- Balance of Trade, Botswana (IOC and FIFA trigram, but not ISO 3166), Build Operate Transfer, Bank of Thailand,BP[edit] |
| 539 | BP- Battle Position,British Petroleum (today, BP does not officially stand for anything), Solomon Islands (FIPS 10-4 country code; from British Protectorate of the Solomon Islands),Bp - Bishop,BPD - Bipolar Personality Disorder,BPM - Beats Per Minute,BPMo - Business Process Mobility |
| 540 | BPV- Battlefield Planning Visualization,Bovine papillomavirus,BQ[edit] |
| 541 | BQ- British Antarctic Territory (former ISO 3166 digram; merged with AQ in 1979),Caribbean Netherlands (current ISO 3166 digram; based on the entity's alternate name of Bonaire, Sint Eustatius and Saba),Navassa Island (FIPS 10-4 territory code),BR[edit],br - Breton language (ISO 639-1 code),Br - Bromine |
| 542 | BR- Brazil (ISO 3166 digram; FIPS 10-4 country code) - Bihar (Indian state code), British Rail,Break Ranks (marching band term),BRA - Brazil (ISO 3166 trigram),BRAG - Bicycle Ride Across Georgia,BRASS - Breathe, Relax, Aim, Sight, Squeeze (Acronym for using a rifle) |
| 543 | BRN- Bahrain (IOC trigram, but not FIFA or ISO 3166), Brunei (ISO 3166 trigram),BRSB - Battlefield Reasoning System Brianna,BRU - Brunei (IOC and FIFA trigram, but not ISO 3166),BS[edit],bs - Bosnian language (ISO 639-1 code) |
| 544 | BS- The Bahamas (ISO 3166 digram),Bassas da India (FIPS 10-4 territory code),Bachelor of Science degree,British subject |
| 545 | Bullshit- |
| 546 | BSA- Birmingham Small Arms (motorcycles company),Boy Scouts of America,Brigade Support Area |
| 547 | BSatCoP,Benjamin Sniddlegrass and the Cauldron of Penguins |
| 548 | BSD- Bahamian dollar (ISO 4217 currency code), Berkeley Software Distribution (distinct from BSoD) |
| 549 | BSE, Bovine Spongiform Encephalopathy, better known as mad cow disease |
| 550 | BSNL-Bharat Sanchar Nigam Limited, Bachelor of Science in Nursing,BSoD - Blue Screen of Death (distinct from BSD) |
| 551 | BSP- Between-Show Promotion,Binary Space Partitioning,Board Support Package,British Standard Pipe (screw thread), Business-sponsored,Bone sialoprotein |
| 552 | BST- Binary search tree,Blended Sales Tax, Bovine somatotropin, British Summer Time,BSW - British Standard Whitworth (screw thread),BSX - Bendigo Stock Exchange,BT[edit] |
| 553 | Bt- Baronet,Bacillus thuringiensis |
| 554 | c, Centi |
| 555 | C, Carbon,Coulomb,One Hundred (in Roman numerals) |
| 556 | c2c, the British rail company formerly known as LTS Rail |
| 557 | C2C, Consumer-To-Consumer electronic commerce,Cam-To-Cam internet chat |
| 558 | ca, Catalan language (ISO 639-1 code) |
| 559 | Ca, Calcium |
| 560 | CA- California (postal symbol),Canada (FIPS 10-4 country code; ISO 3166 digram),Catalonia, Civil Affairs,Close Armour,Cocaine Anonymous,Computer Associates,Counter-Air,Cricket Australia |
| 561 | CAA- Canadian Automobile Association,(NORAD) Center for Aerospace Analysis,(U.S.) Center for Army Analysis,(U.S.) Clean Air Act,(U.S. Army) Concepts Analysis Agency,Civil Aviation Authority,Colonial Athletic Association |
| 562 | CAAT- or Campaign Against Arms Trade,Center for Alternatives to Animal Testing |
| 563 | CAC- California Association of Criminalists,Chronic Asymptomatic [Disease] Carrier,CACM Central American Common Market |
| 564 | CACM, Communications of the ACM |
| 565 | CAD- Canadian dollar (ISO 4217 currency code), Computer-Aided Design,Computer-Aided Dispatch,Cpplint Anxiety Disorder, Condition suffered by software developers who worry about whether they've left any whitespace on the end of a line |
| 566 | CADCAM, Computer-Aided Design/Computer-Aided Manufacturing |
| 567 | CADPAT, CAnadian Disruptive PATtern |
| 568 | CADMID, Concept, Assessment, Demonstration, Manufacture, In service, Disposal (life cycle mnemonic) |
| 569 | CAE- Canadian Aviation Electronics (originally),Certificate in Advanced English |
| 570 | CAEn,(i/a) Close Action Engagement (constructive simulation) |
| 571 | CAF- Central African Republic (ISO 3166 trigram), Confederation of African Football (or French Confédération Africaine de Football) |
| 572 | CAFAD, Combined Arms For Air Defence |
| 573 | CAFDE- Canadian Association of Film Distributors and Exporters,Computer Aided Federation Development Environment |
| 574 | CAFE, Corporate Average Fuel Economy standard |
| 575 | CAI, Computer Assisted Instruction |
| 576 | CAIR, Council on American-Islamic Relations |
| 577 | CALABARZON, A region in the Philippines: CAvite, LAguna, BAtangas, Rizal, queZON |
| 578 | CALL, (U.S.) Center for Army Lessons Learned |
| 579 | CALM, Communications, Air-interface, Long and Medium range |
| 580 | CalPERS, California Public Employees' Retirement System |
| 581 | Caltrans, California Department of Transpotation |
| 582 | CAM- Chemical Agent Monitor,Complementary and alternative medicine,Computer-Aided Manufacturing,Crassulacean acid metabolism (type of photosynthesis) |
| 583 | CAMRA, CAMpaign for Real Ale |
| 584 | CAN, Canada (ISO 3166 trigram) |
| 585 | CANA, Convulsive Antidote, Nerve Agent |
| 586 | CANDU, CANada Deuterium Uranium (nuclear reactor design) |
| 587 | Canola, Canadian oil, low acid (referring to a specific cultivar of rapeseed bred to have a low erucic acid content) |
| 588 | CAPES- CAPability Evaluation System, Combined Arms Planning and Execution System |
| 589 | CARE- Citizens Association for Racial Equality (former New Zealand organisation), Community database on Accidents on the Roads in Europe, Cooperative for Aid and Relief Everywhere (originally Cooperative for American Remittances to Europe) |
| 590 | CARMONETTE, Computerized Monte Carlo Simulation |
| 591 | CARP, Computed Air Release Point |
| 592 | CART, Championship Auto Racing Teams (now defunct) |
| 593 | CAS- Chemical Abstracts Service,Chief of the Air Staff,Close Air Support |
| 594 | CASA, Civil Aviation Safety Authority |
| 595 | CASE- Cellular ammunition storage equipment,Computer-Aided Software Engineering |
| 596 | CASS, Command Activated Sonobuoy System |
| 597 | CASTFOREM, Combined Arms and Support Task FORce Evaluation Model |
| 598 | CASTOR, Canadian Automatic Small Telescopes for Orbital Research |
| 599 | cat, Catalan language (ISO 639-2 code) |
| 600 | CAT- Community Acceptance Testing,Computer-Assisted (or Axial) Tomography |
| 601 | CATK, Counterattack |
| 602 | CATS, Computer Active Technology Suspension |
| 603 | CATT,(a/i) Combined Arms Tactical Trainer |
| 604 | CAV, Cavalry |
| 605 | CAW, Canadian Auto Workers (trade union) |
| 606 | CB- Citizens' Band radio, Cambodia (FIPS 10-4 country code) |
| 607 | CBC- Canadian Broadcasting Corporation,Christmas Bird Count,Cipher-Block Chaining,Cornering Brake Control |
| 608 | CBE- Commander of the Order of the British Empire,Cab Beside Engine (see truck) |
| 609 | CBGB, Country, Blue Grass, and Blues (former New York City nightclub) |
| 610 | CBLA, Comparative bullet lead analysis |
| 611 | CBN,CardsApp Brand Number |
| 612 | CBM,many, including Canadian Baptist Ministries and Commodore Business Machines; see entry |
| 613 | CBML, Coalition Battle Management Language |
| 614 | CBOL, Consortium for the Barcode of Life |
| 615 | CBOT, Chicago Board of Trade |
| 616 | CBR, Case-Based Reasoning |
| 617 | CBRN, Chemical, Biological, Radiological, or Nuclear (weapon or event) |
| 618 | CBRNE, Chemical, Biological, Radiological, Nuclear or [high-yield] Explosive (weapon or event) |
| 619 | CBS- Columbia Broadcasting System,Corps Battle Simulation |
| 620 | CBUS, Columbus, Ohio |
| 621 | CC,many, including carbon copy; see entry |
| 622 | CCA, Counter Command Activity |
| 623 | CCC- Canterbury Clothing Company,Civilian Conservation Corps (U.S., 1930s and 1940s),Corpus Christi College, Oxford |
| 624 | CCCP- Central Committee of the Communist Party,Cyrillic for SSSR (Soyuz Sovetskikh Sotsialisticheskikh Respublik, Russian Союз Советских Социалистических Республик, Union of Soviet Socialist Republics) |
| 625 | CCD- Charge-Coupled Device,Confraternity of Christian Doctrine (Catechism) |
| 626 | CCF, Cartoon Cartoon Fridays |
| 627 | CCG- Canadian Coast Guard,Collectible Card Game |
| 628 | CCGC- Canadian Coast Guard Cutter,Canadian Coast Guard College |
| 629 | CCGH, Canadian Coast Guard Hovercraft |
| 630 | CCGS- Canadian Coast Guard Ship,Christ Church Grammar School |
| 631 | CCH, Computer-Controlled Hostile |
| 632 | CCIF, Comité consultatif international des communications téléphoniques à grande distance (French for International Telephone Consultative Committee, merged with the CCIT in 1956 to form the CCITT) |
| 633 | CCII- Command and Control Information Infrastructure,Community Capital Investment Initiative |
| 634 | CCIR- Comité consultatif international pour la radio (French for Consultative Committee on International Radio, became the ITU Radiocommunication Sector, ITU-R, in 1992),Commander's Critical Information Requirements |
| 635 | CCIT, Comité consultatif international télégraphique (French for International Telegraph Consultative Committee, merged with the CCIF in 1956 to form the CCITT) |
| 636 | CCITT, Comité consultatif international téléphonique et télégraphique (French for International Telegraph and Telephone Consultative Committee, became the ITU Telecommunication Standardization Sector, ITU-T, in 1992) |
| 637 | CCK- Cholecystokinin, Cocos (Keeling) Islands (ISO 3166 trigram) |
| 638 | CCM- Canada Cycle & Motor Co. Ltd. (now split into two separate companies bearing the CCM name, one manufacturing bicycles and the other ice hockey equipment),Contemporary Christian music |
| 639 | CCOC- Canadian Children's Opera Chorus,Crosley Car Owners Club |
| 640 | CCOP, Coalition Common Operating/Operational Picture |
| 641 | CCP- Casualty Collection Point,Communications Checkpoint,Contingency Communications Package |
| 642 | CCPA, Consumer Credit Protection Act |
| 643 | CCR, Creedence Clearwater Revival |
| 644 | CCRAp, Canadian Conservative Reform Alliance party |
| 645 | CCRP, Command and Control Research Program |
| 646 | CCRTS, Command and Control Research and Technology Symposium |
| 647 | CCSCS, Coordinadora de Centrales Sindicales del Cono Sur |
| 648 | CCSCS, Consultative Committee for Space Data Systems |
| 649 | CCSK, Cyclic Code Shift Keying |
| 650 | CCT, Current Commitments Team |
| 651 | cd, Candela |
| 652 | Cd, Cadmium |
| 653 | CD,many, including Compact Disc; see entry |
| 654 | CD1, Cluster of Differentiation 1 (a small gene family) |
| 655 | CDA, UK Centre for Defence Analysis |
| 656 | CDC- Centers for Disease Control and Prevention (originally (U.S.) Communicable Disease Center),Control Data Corporation,Cult of the Dead Cow |
| 657 | CDD, Capabilities Development Document |
| 658 | CDE, Chemical Defence Equipment |
| 659 | CDF- California Department of Forestry [and Fire Protection],Common Data Format, Democratic Republic of Congo franc congolais (ISO 4217 currency code) |
| 660 | CDipAF, Certified Diploma in Accounting and Finance |
| 661 | CDL, Commercial driver's license |
| 662 | CDM- Clean Development Mechanism (Kyoto protocol),Cold Dark Matter (astronomy) |
| 663 | CDMA, Code Division Multiple Access |
| 664 | CDMSII, Cryogenic Dark Matter Search II |
| 665 | Cdr, Commander |
| 666 | CDS- Chief of the Defence Staff,Credit default swap |
| 667 | Cdt, Commandant |
| 668 | CDT, Central Daylight Time (UTC−5 hours) |
| 669 | ce, Chechen language (ISO 639-1 code) |
| 670 | Ce, Cerium |
| 671 | CE,many, including Christian/Common Era (cf. AD); see entry |
| 672 | CEA, Campaign Effectiveness Analysis |
| 673 | CECOM, U.S. Army Communications and Electronics Command |
| 674 | CEI, Competitive Enterprise Institute |
| 675 | CENTCOM, United States Central Command |
| 676 | CENTO, Central Treaty Organization (Baghdad Pact) |
| 677 | CEO, Chief Executive Officer |
| 678 | CEP, Circular Error Probable |
| 679 | CERCLA, U.S. Comprehensive Environmental Response, Compensation, and Liability Act (Superfund) |
| 680 | CERDEC,U.S. Communications-Electronics Research, Development and Engineering Center |
| 681 | CERT, Computer Emergency Response Team |
| 682 | ces, Czech language (ISO 639-2 code) |
| 683 | CESS, Centre for Earth Science Studies (India) |
| 684 | CEWC,(a/i) Council for Education in World Citizenship |
| 685 | Cf, Californium |
| 686 | CF- Canadian Forces, Central African Republic (ISO 3166 digram),Republic of the Congo (FIPS 10-4 country code) |
| 687 | CFA- Cat Fanciers' Association,Chartered Financial Analyst,Colour Filtering Array,County Fire Authority,Covering Force Area |
| 688 | CFAR- Christine's,Federal Acquisition Regulation |
| 689 | CFC- ChloroFluoroCarbon,Canadian Fish Company |
| 690 | CFES, Continuous Flow Electrophoresis System |
| 691 | CFFZ, Call For Fire Zone |
| 692 | CFG- Context-free grammar,Control flow graph |
| 693 | CFHT, Canada-France-Hawaii Telescope |
| 694 | CFI, Center for Inquiry (CSICOP) |
| 695 | CFL- Canadian Football League,Co-ordinated Fire Line |
| 696 | CFLCC, Coalition Forces Land Component Command |
| 697 | CFM, Certified Facilities Manager [(IFMA)]http://www.ifma.org/ |
| 698 | CFO, Chief Financial Officer |
| 699 | CFP- Call for papers,College Football Playoff,Common Fisheries Policy (EU) |
| 700 | CFRP, Carbon fibre reinforced plastic |
| 701 | CFS, Chronic Fatigue Syndrome |
| 702 | CFSP, Common Foreign and Security Policy |
| 703 | CFU, Colony Forming Unit in Microbiology |
| 704 | CFV, Cavalry Fighting Vehicle |
| 705 | CFZ, Critical Friendly Zone |
| 706 | CG, Client Group,Computer Graphics,Controls Group, Democratic Republic of the Congo (FIPS 10-4 country code),Republic of the Congo (ISO 3166 digram) |
| 707 | CGDC, Computer Game Developers Conference (became GDC in 1998) |
| 708 | CGF, Computer-Generated Forces (Simulation) |
| 709 | CGH, Comparative Genomic Hybridisation |
| 710 | CGIG, Cross-Government Implementation Group |
| 711 | CGM, Computer Graphics Metafile |
| 712 | CGO, Republic of the Congo (IOC and FIFA trigram, but not ISO 3166) |
| 713 | CGS, Chief of the General Staff |
| 714 | CGT, Capital Gains Tax |
| 715 | ch, Chamorro language (ISO 639-1 code) |
| 716 | ch,ch(L) is used to denote the Chern character of a line bundle |
| 717 | CH, Chieftain tank, China (FIPS 10-4 country code),Switzerland (ISO 3166 digram; from Latin Confoederatio Helvetica) |
| 718 | cha, Chamorro language (ISO 639-2 code) |
| 719 | CHAMPUS, (U.S.) Civilian Health and Medical Program of the Uniformed Services (now known as TRICARE) |
| 720 | CHAOS, Cambridge Heart Anti-Oxidant Study |
| 721 | CHAPS, Clearing House Automated Payment System |
| 722 | CHDK, Canon Hack Development Kit (Canon camera firmware hack) |
| 723 | che, Chechen language (ISO 639-2 code) |
| 724 | CHE, Switzerland (ISO 3166 trigram; from Latin Confoederatio Helvetica) |
| 725 | CHF, Swiss franc (ISO 4217 currency code) |
| 726 | CHI, Columbia Helicopters, Inc |
| 727 | CHI, Computer-Human Interaction |
| 728 | CHiP, California Highway Patrol |
| 729 | CHIPS, Cosmic Hot Interstellar Plasma Spectrometer |
| 730 | CHL, Chile (ISO 3166 trigram) |
| 731 | CHLA, Core Historical Literature of Agriculture |
| 732 | CHN, China (ISO 3166 trigram) |
| 733 | CHOGM, Commonwealth Heads of Government Meeting |
| 734 | CHP, California Highway Patrol,Combined Heat and Power |
| 735 | CHPSO, California Hospital Patient Safety Organization |
| 736 | CHT, Certified Hand Therapist |
| 737 | chu, Old Church Slavonic language (ISO 639-2 code) |
| 738 | chv, Chuvash language (ISO 639-2 code) |
| 739 | CREN, Christian Real Estate Network Real Estate Association |
| 740 | Ci, Curie |
| 741 | CI- Chile (FIPS 10-4 country code),Côte d'Ivoire (ISO 3166 digram), Counter-Intelligence,101 (in Roman numerals) |
| 742 | CIA- Cairo International Airport,Central Intelligence Agency,Culinary Institute of America |
| 743 | CIAO- Critical Infrastructure Assurance Office,Component-Integrated ACE ORB |
| 744 | CIB, Complete In Box (Internet auction/trading listings) |
| 745 | CIBC, Canadian Imperial Bank of Commerce |
| 746 | CID,Certified Interior Designer,A Certified Interior Designer (CID) licensed in New York (USA) plans, designs, supervises and/or consults on various aspects of interior spaces. |
| 747 | CIEF, Comité international d'enregistrement des fréquences (International Frequency Registration Board) |
| 748 | CIF, Cost, Insurance, and Freight (Paid) (shipping) |
| 749 | CINC, Commander in Chief |
| 750 | CINEOS, Campo Imperatore Near-Earth Object Survey |
| 751 | CIO- Chief information officer,Congress of Industrial Organizations |
| 752 | CIPE, (European) Centre for International Political Economy |
| 753 | CIR, (Commander's) Critical Information Requirements |
| 754 | CIR, Corotating Interaction Region |
| 755 | CIS- Canadian Interuniversity Sport,Commonwealth of Independent States,Command and Information System,Communication and Information System |
| 756 | CISA, (U.S.) C4I Integration Support Activity |
| 757 | CISB, Complete In Sealed Box (Internet auction/trading listings) |
| 758 | CISPR, Comité international spécial des perturbations radioélectriques (Special International Committee on Radio Interference) |
| 759 | CISSP, Certified Information Systems Security Professional |
| 760 | CIV, Côte d'Ivoire (ISO 3166 trigram) |
| 761 | CIVETS, Colombia, Indonesia, Vietnam, Egypt, Turkey, South Africa (economics) |
| 762 | CIVPOP, Civilian Population |
| 763 | CIWS, Close-In Weapon System |
| 764 | CHRS,Canadian Heart Rhythm Society |
| 765 | CJ, Cayman Islands (FIPS 10-4 country code), Criminal Justice |
| 766 | CJC, Canadian Jewish Congress,Cold Junction Compensation |
| 767 | CJD, Chronological Julian Day,Creutzfeldt-Jakob Disease |
| 768 | CJCS, Chairman of the Joint Chiefs of Staff |
| 769 | CJO, Chief of Joint Operations |
| 770 | CJTF, Combined Joint Task Force |
| 771 | CK, Cocos (Keeling) Islands (FIPS 10-4 country code),Cook Islands (ISO 3166 digram) |
| 772 | CKA, commonly known as, Canada Kicks Ass |
| 773 | CKND,Codename: Kids Next Door |
| 774 | Cl, Chlorine |
| 775 | CL, Chile (ISO 3166 digram), Co-ordination Line,One Hundred and Fifty (in Roman numerals) |
| 776 | CLA, Clutterers Anonymous |
| 777 | CLEC, Competitive Local Exchange Carrier |
| 778 | CLEMARS, California Law Enforcement Mutual Aid Radio System |
| 779 | CLI, Command Line Interface/Interpreter |
| 780 | CLIC, Compact LInear Collider |
| 781 | CLO, Cornell Lab of Ornithology |
| 782 | CLOB, Character Large OBject |
| 783 | CLOS, Command to Line-Of-Sight (missile control system) |
| 784 | CLOS, Common Lisp Object System |
| 785 | CLP, Chilean peso (ISO 4217 currency code), Common [Operating/Operational] Land Picture |
| 786 | CLPFC, CentroLateral PreFrontal Cortex |
| 787 | CLRP, College Loan Repayment Program |
| 788 | Cm, Curium |
| 789 | CM- Cameroon (FIPS 10-4 country code; ISO 3166 digram), Cruise Missile, Nine Hundred (in Roman numerals) |
| 790 | CMA- U.S. Chemical Materials Agency,Country Music Association (also used to refer to the organization's annual awards),Crystal Meth Anonymous |
| 791 | CMB, Cosmic Microwave Background |
| 792 | CMBR, Cosmic Microwave Background Radiation |
| 793 | CME, Coronal Mass Ejection (usually Sun) |
| 794 | CMHC, Canada Mortgage and Housing Corporation |
| 795 | CMIIAW, Correct me if I am wrong |
| 796 | CMIS- Content Management Interoperability Services,Common management information service |
| 797 | CMJ, Christopher Martin-Jenkins (BBC sports commentator) |
| 798 | CML- Chemical, Chronic Myelogenous Leukemia (formerly Chronic Myeloid Leukemia) |
| 799 | CMM, Capability Maturity Model |
| 800 | CMMC, Corps Materiel Management Centre |
| 801 | CMML- Chronic MyeloMonocytic Leukemia,Continuous Media Markup Language |
| 802 | CMOS- Canadian Meteorological and Oceanographic Society,(The) Chicago Manual of Style,Complementary Metal Oxide Semiconductor |
| 803 | CMP, Common [Operating/Operational] Maritime Picture |
| 804 | CMPD, Chronic Myeloproliferative Disease |
| 805 | CMPD, Charlotte Mecklenburg Police Department |
| 806 | CMR- Cameroon (ISO 3166 trigram), Coaxial Main Rotors (helicopter type) |
| 807 | CMS- Centers for Medicare and Medicaid Services,The Chicago Manual of Style |
| 808 | CMT, Country Music Television |
| 809 | CMU- Carnegie Mellon University,Central Michigan University,Concrete Masonry Unit |
| 810 | CMW- Marconi's Wireless Telegraph Company of Canada,Canadian Manufacturing Week,Canadian Music Week,Catherine McAuley Westmead (school in New South Wales, Australia),Chicago, Missouri and Western (Railway),Compartmented Mode Workstation,Compton's Most Wanted,Continuous Microwave (processing technology),Custom Maintenance Wizard (Microsoft Office Resource Kit) |
| 811 | CMYK, Cyan Magenta Yellow Key/blacK (colour model) |
| 812 | CN-(i/s) Canadian National (railway; also the AAR reporting mark for said company), China (ISO 3166 digram),Comoros (FIPS 10-4 country code) |
| 813 | CNA- Center for Naval Analyses,Certified Network Administrator,Computer Network Attack,Continental (Casualty Company), National (Fire Insurance Company), and American (Casualty Company), the three companies that merged to form what is now known as CNA Financial |
| 814 | CNBC,(a/i) Consumer News and Business Channel |
| 815 | CND- Campaign for Nuclear Disarmament,Computer Network Defence |
| 816 | CNE- Canadian National Exhibition,Computer Network Exploitation,Certified Network Engineer |
| 817 | CNF, Cost and Freight |
| 818 | CNI, Communications, Navigation and Identification |
| 819 | CNI, Clinical Nursing Intern |
| 820 | CNN- Cable News Network,Cellular Nonlinear Network |
| 821 | CNO, Computer Network Operations |
| 822 | CNV, Copy-Number Variable (genetics) |
| 823 | CNY, Chinese yuan renminbi (ISO 4217 currency code) |
| 824 | co, Corsican language (ISO 639-1 code) |
| 825 | Co, Cobalt |
| 826 | COB, Close Of Business [day] |
| 827 | COBRA,Consolidated Omnibus Budget Reconciliation Act of 1985 |
| 828 | COD, Cash On Delivery, Democratic Republic of the Congo (ISO 3166 trigram) |
| 829 | CoDA, Co-Dependents Anonymous |
| 830 | codec, Coder-Decoder / Compressor-Decompressor / Compression-Decompression algorithm |
| 831 | COGENT, Cognitive Objects within a Graphical EnviroNmenT |
| 832 | COIL, Chemical Oxygen Iodine Laser |
| 833 | COK, Cook Islands (ISO 3166 trigram) |
| 834 | COL, Colombia (ISO 3166 trigram) |
| 835 | COLA, comp.os.linux.announce,Cost Of Living Adjustment |
| 836 | COM, Comoros (ISO 3166 trigram), Component Object Model |
| 837 | COMECON, Council for Mutual Economic Assistance (economic counterpart of the Warsaw Pact, 1949-1991) |
| 838 | CONAD, U.S. Continental Air Defense Command |
| 839 | CONCACAF, Confederation Of North, Central American and Caribbean Association Football |
| 840 | CONUS, Continental United States |
| 841 | COO, Chief Operating Officer |
| 842 | COP, Colombian peso (ISO 4217 currency code), Common Operating/Operational Picture |
| 843 | COPE, U.K. Committee On Publication Ethics |
| 844 | COPUS, U.K. Committee on the Public Understanding of Science |
| 845 | cor, Cornish language (ISO 639-2 code) |
| 846 | CORBA, Common Object Request Broker Architecture |
| 847 | CORD,(i/a) Common Operational Requirements Document |
| 848 | CORE, Consortium for Oceanographic Research and Education |
| 849 | COROT, COnvection, ROtation and planetary Transits |
| 850 | cos, Corsican language (ISO 639-2 code),Cosine |
| 851 | COS, Cooper Ornithological Society |
| 852 | COSER, COoperative SERvice |
| 853 | CoT, Car of Tomorrow (former NASCAR race car design) |
| 854 | COTS, Commercial Off The Shelf |
| 855 | CP, Canadian Pacific,Check Point,Command Post,Club Penguin |
| 856 | CPA, Certified Public Accountant |
| 857 | CPCU,Certified Property Casualty Underwriter |
| 858 | CPD, Capabilities Production Document |
| 859 | CPE, Certificate of Proficiency in English |
| 860 | CPE, Certified Professional Ergonomist |
| 861 | CPF, Calibration Parameter File,Canadian Patrol Frigate |
| 862 | CPG, Clinical Practice Guideline |
| 863 | CPI, CERDEC Command, Power and Integration |
| 864 | CPIM, Certification on Production and Inventory Management |
| 865 | CPIR,Computationally-Private Information Retrieval |
| 866 | CPON, Certified Pediatric Oncology Nurse |
| 867 | CPPCC, Chinese People's Political Consultative Conference |
| 868 | CPR, Canadian Pacific Railway |
| 869 | CPR, Cardiopulmonary resuscitation |
| 870 | CPSM, Continuous Phase Shift Modulation |
| 871 | CPSU, Communist Party of the Soviet Union |
| 872 | CPT, Contingency Planning Team |
| 873 | CPU,Contract Postal Unit |
| 874 | CPV, Cape Verde (ISO 3166 trigram) |
| 875 | CPX, Command Post eXercise |
| 876 | CQ, Carrier Qualification,Central Queensland,Charge of Quarters,Congressional Quarterly,Constellation Airlines (IATA airline designator),Northern Mariana Islands (FIPS 10-4 territory code) |
| 877 | cr, Cree language (ISO 639-1 code) |
| 878 | Cr, Chromium |
| 879 | CR- Coral Sea Islands (FIPS 10-4 territory code),Costa Rica (ISO 3166 digram) |
| 880 | CRAM, Combined Radiometric Correction Model |
| 881 | CRC- Central RTI Component,Chemical Rubber Company,Christian Reformed Church,Control and Reporting Centre,Cyclic Redundancy Check, Costa Rican colón (ISO 4217 currency code),Costa Rica (IOC and FIFA trigram, but not ISO 3166) |
| 882 | CRD, Capstone Requirements Document |
| 883 | cre, Cree language (ISO 639-2 code) |
| 884 | CREB, Cyclic AMP-response Element Binding (protein) |
| 885 | CREEP, Committee for the Re-Election of the President, a pejorative nickname used by opponents |
| 886 | CRI- China Radio International, Costa Rica (ISO 3166 trigram) |
| 887 | CRIPL, Consolidated Remain-In-Place List |
| 888 | CRM, Cardiac Rhythm Management,Customer Relationship Management |
| 889 | CRO, Croatia (IOC and FIFA trigram, but not ISO 3166) |
| 890 | CRP- Committee for the Re-Election of the President,Control and Reporting Post |
| 891 | CRT- Cardiac Resynchronization Therapy,Cathode Ray Tube,Chinese Remainder Theorem |
| 892 | CRTC, Canadian Radio-television and Telecommunications Commission |
| 893 | cs, Czech language (ISO 639-1 code) |
| 894 | Cs, Caesium |
| 895 | CSA- Canadian Soccer Association,Canadian Space Agency,Canadian Standards Association,Child Support Agency,Command Staff Advisor,Community-supported agriculture,Confederate States of America,Corps Storage Area, Czech Airlines,C/S/A, CINC, Service, and Agency |
| 896 | CSC- Closed Spacelike Curve (relativity),Compact system camera,Computer Sciences Corporation,Computer Security Centre,CSCC Canadian Society of Clinical Chemists |
| 897 | CSERIAC, (U.S. DoD) Crew Systems Ergonomics Information Analysis Center |
| 898 | CSG, Corps Support Group |
| 899 | CSI,see entry |
| 900 | CSICOP, Committee for the Scientific Investigation of Claims of the Paranormal (became the Committee for Skeptical Inquiry in 2006) |
| 901 | CSIP, Commercial Stable Image Platform (AMD) |
| 902 | CSK, Czechoslovakia (ISO 3166 trigram; obsolete since 1993) |
| 903 | CSL, U.K. Central Science Laboratory |
| 904 | CSPI, Center for Science in the Public Interest |
| 905 | CSR, Control Supply Rate |
| 906 | CSR, Corporate Social Responsibility [1] |
| 907 | CSRC, Conflict Studies Research Centre |
| 908 | CSRF, Cross-Site Request Forgery |
| 909 | CST, Central Standard Time (UTC−6 hours) |
| 910 | CT, Computed tomography (medical scan also known as a CAT scan),Central Time zone,Chrono Trigger (Computer/Video games), Connecticut (postal symbol),Canterbury (postal symbol),Chhattisgarh (Indian state code) |
| 911 | CTBT, Comprehensive [Nuclear] Test Ban Treaty |
| 912 | CTDB, Compact Terrain Data Base (file format) |
| 913 | CTE- Canton and Enderbury Islands (ISO 3166 trigram; obsolete 1984), Chronic traumatic encephalopathy |
| 914 | CTGF, connective tissue growth factor |
| 915 | CTI, Co-operative Target Identification |
| 916 | CTIL, Critical Tracked Items List |
| 917 | CTIS, Central Tire Inflation System |
| 918 | CTMS, Clinical Trial Management System |
| 919 | CTO, Chief Technical Officer,Chief Technology Officer |
| 920 | CTS, Clear-To-Send,Collective Training Standards,Communications Technology Service,Contract Technical Services,Conversation Time Sharing,COSMIC Top Secret |
| 921 | CTSS, Compatible Time-Sharing System |
| 922 | CTU, Counter Terrorist Unit (fictional branch of the Central Intelligence Agency in the television action series 24) |
| 923 | CTVT, Canine Transmissible Venereal Tumour |
| 924 | cu, Old Church Slavonic language (ISO 639-1 code) |
| 925 | Cu, Copper (Latin Cuprum) |
| 926 | CU, Carrie Underwood,Cuba (FIPS 10-4 country code; ISO 3166 digram) |
| 927 | CUB, Cuba (ISO 3166 trigram) |
| 928 | CUCV, Commercial Utility Cargo Vehicle |
| 929 | CUP, Cuban peso (ISO 4217 currency code) |
| 930 | CUPS, Common Unix Printing System |
| 931 | CUPW, Canadian Union of Postal Workers |
| 932 | CUREA, Consortium for Undergraduate Research and Education in Astronomy |
| 933 | CuW, Copper-tungsten pseudo-alloy (from the chemical symbols of the two component elements) |
| 934 | CUW, Curaçao (ISO 3166 trigram) |
| 935 | cv, Chuvash language (ISO 639-1 code) |
| 936 | CV,many, including curriculum vitae (résumé); see entry |
| 937 | CVE, Cape Verde escudo (ISO 4217 currency code) |
| 938 | CVLL, Crypto Variable Logic Label |
| 939 | CVS, Concurrent Versions System |
| 940 | CVSD, Continuous Variable Slope Delta (modulation) |
| 941 | CVT, Continuously Variable Transmission |
| 942 | CW, Continuous Wave,Clothes Washer, Cook Islands (FIPS 10-4 territory code) |
| 943 | CWC, Chemical Weapons Convention |
| 944 | CWS, Canadian Wildlife Service |
| 945 | CWRU, Case Western Reserve University |
| 946 | CX, Christmas Island (ISO 3166 digram),One Hundred and Ten (in Roman numerals) |
| 947 | CXR, Christmas Island (ISO 3166 trigram) |
| 948 | cy, Welsh language (ISO 639-1 code) |
| 949 | CY, Calendar year, Cyprus (ISO 3166 and FIPS 10-4 country code digram) |
| 950 | cym, Welsh language (ISO 639-2 code) |
| 951 | CYM, Cayman Islands (ISO 3166 trigram) |
| 952 | CYP, Cyprus (ISO 3166 trigram),Cyprus pound (ISO 4217 currency code) |
| 953 | CZE, Czech Republic (ISO 3166 trigram) |
| 954 | CZK, Czech koruna (ISO 4217 currency code) |
| 955 | CZF, (Christian Zombie Fan) |
| 956 | CZMA, (US) Coastal Zone Management Act |
| 957 | d, Deci |
| 958 | D, Deuterium |
| 959 | da, Danish language (ISO 639-1 code),deca |
| 960 | DA, Denmark (FIPS 10-4 country code), Debtors Anonymous, U.S. Department of the Army,District Attorney |
| 961 | DAB,Digital Audio Broadcasting |
| 962 | DAES, Defence Acquisition Executive Summary,(UK MoD) Directorate of Analysis, Experimentation and Simulation |
| 963 | DAF, Dissolved Air Flotation, a technique used in water treatment |
| 964 | DAFIF, Digital Aeronautical Flight Information File |
| 965 | DAK, Disney's Animal Kingdom |
| 966 | dan, Danish language (ISO 639-2 code) |
| 967 | DAO, Division Ammunition Officer |
| 968 | DAQ, Data acquisition, Delivered Audio Quality |
| 969 | DARE, Drug Abuse Resistance Education |
| 970 | DARO,(i/a) (U.S.) Defense Airborne Reconnaissance Office |
| 971 | DARPA, U.S. Defense Advanced Research Projects Agency |
| 972 | DART, Disaster Assistance Response Team,Dublin Area Rapid Transit |
| 973 | DAS, Defensive Aids Suite |
| 974 | DASD, (U.S.) Deputy Assistant Secretary of Defense |
| 975 | DASL, Datapoint's Advanced Systems Language |
| 976 | DAU, (U.S.) Defense Acquisition University |
| 977 | DAWN, (U.S.) Drug Abuse Warning Network |
| 978 | dB, Decibel |
| 979 | Db, Dubnium |
| 980 | DB, Database,Deutsche Bahn |
| 981 | DBA, De Bellis Antiquitatis (miniature wargaming rules) |
| 982 | DBBL, (U.S. Army Simulation Center) Dismounted Battlespace Battle Laboratory |
| 983 | DBCS, Double Byte Character Set |
| 984 | DBDO, Desert BDO |
| 985 | DBE, Dame Commander of the Order of the British Empire |
| 986 | DBF, Detection By Fire (weapon launch signature) |
| 987 | DBR, De Bellis Renationis (miniature wargaming rules) |
| 988 | DBRA, Davis-Bacon Related Acts |
| 989 | DBS, Direct Broadcast Services (television) |
| 990 | DC, da capo,Italian Democrazia Cristiana,Digital Compass,Direct Current, District of Columbia (postal symbol), Douglas Aircraft Company,Dublin Core,Duty Cycle |
| 991 | DCA, Defensive Counter Air,Drum Corps Associates, DiChloroAcetate, Ronald Reagan Washington National Airport (IATA code) |
| 992 | DCAA, (U.S.) Defense Contract Audit Agency |
| 993 | DCAS, Devon and Cornwall Archery Society |
| 994 | DCC, Dallas Christian College |
| 995 | DCCP, Datagram Congestion Control Protocol |
| 996 | DCD, [Organ] Donation after Cardiac Death |
| 997 | DCE, Data Communication Equipment |
| 998 | DCFC, Death Cab for Cutie |
| 999 | DCI, Detection, Classification and Identification,Drum Corps International,Duellists' Convocation International, now known simply by the initials |
| 1000 | DCIM, Digital Camera Images |
| 1001 | DCL,Disney Cruise Line |
| 1002 | DCN,Deacon |
| 1003 | DCOM,Disney Channel Original Movie |
| 1004 | DCOP, Desktop Communication Protocol |
| 1005 | DCSOPS, Deputy Chief of Staff for Operations and plans |
| 1006 | DCW, Digital Chart of the World |
| 1007 | DCYSC, Discovery Channel Young Scientist Challenge |
| 1008 | DD,many, including due diligence and dear daughter (increasingly prevalent on social mailing lists, blogs, and bulletin boards); see entry |
| 1009 | DDA- Digital Differential Analyzer (graphics algorithm),Digital Differential Analyzer,Deputy District Attorney |
| 1010 | DDD- Data Display Debugger,Digital Digital Digital (CD mastering) |
| 1011 | DDL, Digital Data Link |
| 1012 | DDN, U.S. Defense Data Network |
| 1013 | DDoS, Distributed Denial of Service |
| 1014 | DDS, Doctor of Dental Surgery |
| 1015 | DDT- Dichloro-Diphenyl-Trichloroethane (insecticide),Dynamic Debugging Tool (computing),DE[edit] |
| 1016 | de, German language (ISO 639-1 code) |
| 1017 | DE, Delaware (postal symbol),Germany (ISO 3166 digram) |
| 1018 | DEA, Drug Enforcement Administration |
| 1019 | DEA, Drug Enforcement Agency |
| 1020 | DEC,(a/i) Department of Environmental Conservation,Digital Equipment Corporation,Disasters Emergency Committee |
| 1021 | DeCA, (U.S.) Defense Commissary Agency |
| 1022 | DECT, Digital European Cordless Telephone |
| 1023 | DEFCON, Defence readiness condition |
| 1024 | DEFRA, (UK) Department for Environment, Food and Rural Affairs |
| 1025 | DELT, Dual Ended Line Test (ing) |
| 1026 | DEM, Data Exchange Mechanism,Digital Elevation Model |
| 1027 | DEN, Denmark (IOC and FIFA trigram, but not ISO 3166) |
| 1028 | DEPSECDEF, (U.S.) Deputy Secretary of Defense |
| 1029 | DERA, British Defence Evaluation and Research Agency (1995-2001) |
| 1030 | DES, Deep Ecliptic Survey |
| 1031 | deu, German language (ISO 639-2 code) |
| 1032 | DEU, Germany (ISO 3166 trigram) |
| 1033 | DFAS, (U.S.) Defense Finance and Accounting Service |
| 1034 | DFCB, Data Format Control Book |
| 1035 | DfID, UK Department for International Development |
| 1036 | DFM, Dynamic Flowgraph Methodology |
| 1037 | DFM,(ii) Discrete Field Model see Superluminal motion |
| 1038 | DFSP, Dermatofibrosarcoma protuberans |
| 1039 | DfT, UK Department for Transport |
| 1040 | DFTBA, Don't Forget To Be Awesome- a term commonly used by the Vlogbrothers |
| 1041 | DGPS, Differential GPS |
| 1042 | DGZ, Desired Ground Zero |
| 1043 | DH, dear husband (increasingly prevalent on social mailing lists, blogs, and bulletin boards),Designated hitter |
| 1044 | DHA, DocosaHexaenoic Acid |
| 1045 | DHHS, (U.S.) Department of Health and Human Services |
| 1046 | DHL, Dalsey, Hillblom, and Lynn (courier service) |
| 1047 | DHRA, (U.S.) DoD Human Resources Activity |
| 1048 | DHS, U.S. Department of Homeland Security |
| 1049 | DHSS, UK Department of Health and Social Security |
| 1050 | DHTFYSS, U.S. Don't Have Time For You Silly S**** |
| 1051 | DHY, Dahomey (ISO 3166 trigram; became BEN for Benin in 1977) |
| 1052 | DIA, U.S. Defense Intelligence Agency |
| 1053 | DIAC, Department of Immigration and Citizenship (Australia) [1] |
| 1054 | DiC,Design Island Centre (computing usually used in a teaching situation) |
| 1055 | DICASS, DIrectional Command Activated Sonobuoy System |
| 1056 | DIF, Data Interchange Format |
| 1057 | DIFAR, DIrectional Frequency Analysis and Recording |
| 1058 | DIME, Dense Inert Metal Explosive |
| 1059 | DIMM, Dual In-line Memory Module (computing) |
| 1060 | DINKY, Double Income, No Kids Yet |
| 1061 | DIP, Dual In-line Package (electronics) |
| 1062 | DIPS, Defense independent pitching statistics |
| 1063 | DIR, Defence Industrial Research |
| 1064 | DIS- Defence Intelligence Staff,(U.S.) Defense Investigative Service,Distributed Interactive Simulation,Draft International Standard (ISO) |
| 1065 | DISA- U.S. Defense Information Systems Agency,Distinguished Individual Service Award |
| 1066 | DISCOM, Division Support Command |
| 1067 | DISE, Deployable Intelligence Support Element |
| 1068 | DISSTAF, DIS Search and Target Acquisition Fidelity experiment |
| 1069 | DITY,(i/a) Do-It-Yourself |
| 1070 | div, Dhivehi language (ISO 639-2 code) |
| 1071 | DIVAD, Division Air Defence |
| 1072 | DIY, Do It Yourself |
| 1073 | DJ, Disc Jockey,Dinner Jacket, Djibouti (ISO 3166 digram; FIPS 10-4 country code) |
| 1074 | DJD, Degenerative Joint Disease,Dublin Julian Day,Discoveries in the Judaean Desert |
| 1075 | DJF, Djibouti franc (ISO 4217 currency code) |
| 1076 | DJI, Djibouti (ISO 3166 trigram) |
| 1077 | DJS, Director, Joint Staff |
| 1078 | DK, Denmark (ISO 3166 digram) |
| 1079 | DKK, Danish krone (ISO 4217 currency code) |
| 1080 | DL,Dexter's Laboratory |
| 1081 | DLA, U.S. Defense Logistics Agency, Dental Laboratories Association |
| 1082 | DLIC, Detachment Left-In-Contact |
| 1083 | DLIR, Depot-Level Inspection and Repair |
| 1084 | DLL, Dynamic Link Library |
| 1085 | DLPMC, DorsoLateral PreMotor Cortex |
| 1086 | DLR, Deutsches Zentrum für Luft- und Raumfahrt (German, German Aerospace Centre),Docklands Light Railway |
| 1087 | DLRP, Data Link Reference Point |
| 1088 | DLS, Deep Lens Survey |
| 1089 | DLSA, (U.S.) Defense Legal Services Agency |
| 1090 | DLSc, Diploma in Library Science |
| 1091 | DLSC, U.S. Defense Logistics Services Center,U.S. Defense Logistics Support Command,Department of Library Special Collections (Western Kentucky University Libraries),Direct Loan Servicing Center,Directorate of Land Strategic Concepts (Canada),Dominican Lay Scholars Community |
| 1092 | DLTBGYD,Don't let the bastards grind you down |
| 1093 | DM- Dominica (ISO 3166 digram), Dungeon Master (role-playing games) |
| 1094 | DMA- Designated market area (primarily a U.S. term),U.S. Defense Mapping Agency (became NIMA, then NGA),Direct Memory Access (computing), Dominica (ISO 3166 trigram) |
| 1095 | DMC, (U.S.) Defense Management Council |
| 1096 | DMCA,Digital Millennium Copyright Act |
| 1097 | DMI, Desktop Management Interface (computing) |
| 1098 | DMM,Digital Multimeter |
| 1099 | DMOC, Distributed Mission Operations Centre |
| 1100 | DMPA, (U.S.) Defense Medical Programs Activity |
| 1101 | DMPFC, DorsoMedial PreFrontal Cortex |
| 1102 | DMPK, Drug Metabolism and Pharmacokinetics |
| 1103 | DMRB, Design Manual for Roads and Bridges |
| 1104 | DMS, U.S. Defense Message System |
| 1105 | DMSP, U.S. Defense Meteorological Satellite Program |
| 1106 | DMT, Dimethyltryptamine |
| 1107 | DMU, Diesel Multiple Unit, a method of connecting self-propelled railway vehicles together to form a train under the control of one driver. |
| 1108 | DMV, Department of Motor Vehicles |
| 1109 | DMZ, DeMilitarized Zone |
| 1110 | DN, Deacon |
| 1111 | DNA, U.S. Defense Nuclear Agency,DeoxyriboNucleic Acid,Douglas Noël Adams |
| 1112 | DNAW, Day Night All Weather |
| 1113 | DND, Department of National Defence (Canada),Do Not Disturb |
| 1114 | DNDi, Drugs for Neglected Diseases initiative |
| 1115 | DNDO, U.S. Domestic Nuclear Detection Office |
| 1116 | DNM, Defence Nuclear Material |
| 1117 | DNK, Denmark (ISO 3166 trigram) |
| 1118 | DNR, Do Not Resuscitate |
| 1119 | DNS, Domain Name System |
| 1120 | DO, Dominica (FIPS 10-4 country code),Dominican Republic (ISO 3166 digram), Doctor of Osteopathic Medicine |
| 1121 | DOA, Dead On Arrival,Dead or Alive |
| 1122 | DOB, Date Of Birth |
| 1123 | DOD, U.S. Department of Defense |
| 1124 | DODAF, U.S. Department of Defense Architectural Framework |
| 1125 | DoDD, U.S. Department of Defense Directive |
| 1126 | DoDEA, (U.S.) Department of Defense Education Activity |
| 1127 | DOE,(i/a) U.S. Department of Energy |
| 1128 | DOHC, Dual-OverHead-Cam engine |
| 1129 | DOI, Digital Object Identifier,U.S. Department of the Interior |
| 1130 | DOP, Dominican peso (ISO 4217 currency code) |
| 1131 | DORA, Defence of the Realm Act |
| 1132 | DOS, Denial of Service (DoS, cf. DDoS),Density of State,Disk Operating System |
| 1133 | DOT, Department of Transportation (U.S. federal or state),Damage Over Time (common in World of Warcraft) |
| 1134 | DOTA,short-form for DEFENSE OF THE ANCIENTS a popular online epic game |
| 1135 | DotD, Deal of the Day (marketing gimmick) |
| 1136 | DOTMLPF, Doctrine, Organization, Training, Materiel, Leadership, Personnel, and Facilities (mnemonic) |
| 1137 | DOW, Died of Wounds |
| 1138 | DP, Division de production (Algerian petroleum company) |
| 1139 | DP, Decision Point,Dynamic Programming |
| 1140 | DPA, UK Defence Procurement Agency |
| 1141 | DPCO, Double-Pole Change Over |
| 1142 | DPDT, Double-Pole Double-Throw |
| 1143 | DPICM, Dual-Purpose Improved Conventional Munition |
| 1144 | DPKO, UN Department for Peacekeeping Operations |
| 1145 | DPMO, (U.S.) Defense Prisoner of War/Missing Personnel Office |
| 1146 | DPPDB, Digital Point Positioning Database |
| 1147 | DPRE, Displaced Person or Refugee (plural Displaced Persons and Refugees) (originally Displaced Persons, Refugees, Evacuees) |
| 1148 | DPRK, Democratic People's Republic of Korea |
| 1149 | DPST, Double-Pole Single-Throw |
| 1150 | DQ, Dairy Queen, Jarvis Island (FIPS 10-4 country code) |
| 1151 | DR, Dead Reckoning, Dominican Republic (FIPS 10-4 country code), Danmarks Radio (Danish Broadcasting Corporation) |
| 1152 | DRA, Defence Research Agency (UK, 1991-1995),Democratic Republic of America |
| 1153 | DRC, Democratic Republic of the Congo |
| 1154 | DRDC, Defence Research & Development Canada |
| 1155 | DREA,(i/a) Defence Research Establishment Atlantic (obsolete 2002) |
| 1156 | DRES,(i/a) Defence Research Establishment Suffield (obsolete 2002) |
| 1157 | DRET,(i/a) Defence Research Establishment Toronto (obsolete 2002) |
| 1158 | DREV,(i/a) Defence Research Establishment Valcartier (obsolete 2002) |
| 1159 | DRI, Detection, Recognition, Identification,Dietary Reference Intake |
| 1160 | DRIC,(i/a) (U.S.) Defense Research Information Center |
| 1161 | DRL, Daytime Running Lights,Dorman Roberts Ltd. |
| 1162 | DRM, Digital Rights Management |
| 1163 | DRMS, (U.S.) Defense Revitalization and Marketing Service |
| 1164 | DRPR, Drawing Practices |
| 1165 | DRT, Document Related Technologies |
| 1166 | Ds, Darmstadtium |
| 1167 | DS- Dear son (increasingly prevalent on social mailing lists, blogs, and bulletin boards),Defence Scientist,Direct Support, Dust Storm (METAR Code) |
| 1168 | DSA- (U.S.) Defense Support Activities,Division Support Area |
| 1169 | DSAA- (U.S.) Defense Security Assistance Agency,Driving Schools Association of the Americas,DECT Standard Authentication Algorithm |
| 1170 | DSAS, Disney Sing Along Songs |
| 1171 | DSB, (U.S.) Defense Science Board |
| 1172 | DSC- Differential Scanning Calorimeter,Digital Selective Calling,Digital Still Camera,Distinguished Service Cross,Doctor of Surgical Chiropody (obsolete),Document structure convention (PostScript programming),Dynamic Stability Control |
| 1173 | DSCS, U.S. Defense Satellite Communications System |
| 1174 | DSCSOC, DSCS Operations Center |
| 1175 | DSD, Defence Studies Department (King's College, London) |
| 1176 | DSE, Dry Sheep Equivalent |
| 1177 | DSG,Direct-Shift Gearbox |
| 1178 | DSID, Dismounted Soldier Identification System |
| 1179 | DSL, Digital Subscriber Line |
| 1180 | DSLR, Digital single-lens reflex (camera) |
| 1181 | DSM, Diagnostic and Statistical Manual of Mental Disorders |
| 1182 | DSN, Deep Space Network |
| 1183 | DSP- Defense Standardization Program,Defense Support Program,Digital Signal Processing |
| 1184 | DSPL, Design Specialists and Plans Language |
| 1185 | DSR, Deformed Special Relativity |
| 1186 | DSRV- Deaf Sports Recreation Victoria,Deep Submergence Rescue Vehicle |
| 1187 | DSS- Digitized Sky Survey,Discarding-Sabot Shell (ammunition) |
| 1188 | DST, Daylight saving time |
| 1189 | DSTL, British Defence Science and Technology Laboratory |
| 1190 | DSWA, (U.S.) Defense Special Weapons Agency |
| 1191 | DTA, Dental Technologists Association |
| 1192 | DTD, Digital Terrain Data |
| 1193 | DTE, Data Terminal Equipment,Down To Earth |
| 1194 | DTG, Date-Time Group |
| 1195 | DTH, Direct To Home (television) |
| 1196 | DTI, UK Department of Trade and Industry |
| 1197 | DTIC, (U.S.) Defense Technical Information Center |
| 1198 | DTL, Diode-Transistor Logic (electronics) |
| 1199 | DTMF, Dual-tone multi-frequency signaling |
| 1200 | DTLOMS, Doctrine, Training, Leader development, Organization, Materiel, and Soldier (mnemonic) |
| 1201 | DTO, Disruptive Technology Office (was ARDA) |
| 1202 | DTOMLS, Doctrine, Training, Organization, Materiel, Leader and Soldier development (mnemonic) |
| 1203 | DTR, Determine The Relationship |
| 1204 | DTSA, (U.S.) Defense Technology Security Administration |
| 1205 | DU- Depleted Uranium, Dust (METAR Code) |
| 1206 | DUI- Data Use Identifier,Data Use Institute,Davis Unified Ignition,Diving Unlimited International,Documento Único de Identidad,Documento Unico de Importación,Driving Under the Influence,Duke University Improv |
| 1207 | DUMBO, Down Under the Manhattan Bridge Overpass (Brooklyn neighborhood) |
| 1208 | DUSD, (U.S.) Deputy Under-Secretary of Defense |
| 1209 | dv, Dhivehi language (ISO 639-1 code) |
| 1210 | DVD, Digital Versatile Disk (was Digital Video Disk) |
| 1211 | DVLC, UK Driver and Vehicle Licencing Centre |
| 1212 | DVM, Doctor of Veterinary Medicine |
| 1213 | DVO, Direct View Optics |
| 1214 | DVOM,Digital Volt-Ohm Meter |
| 1215 | DVP,various meanings (disambiguation page) |
| 1216 | DW, Drum Workshop |
| 1217 | DWI, Dance With Intensity,Danish West Indies,Diffusion-weighted imaging,Direct water injection,Disaster Welfare Inquiry,Drinking Water Inspectorate,Driving While Intoxicated/Impaired |
| 1218 | DWM, Doctor Who Magazine |
| 1219 | DWIM, Do What I Mean |
| 1220 | DWTS, Dancing with the Stars |
| 1221 | DWW, Down with Webster |
| 1222 | DX- Dexterity (role-playing games), DeXtrorphan,Distant (radio), D-Generation X (professional wrestling stable) |
| 1223 | DXA, Dual-energy X-ray Absorptiometry |
| 1224 | DXM, DeXtroMethorphan |
| 1225 | Dy, Dysprosium |
| 1226 | DY, Dahomey (ISO 3166 digram; obsolete since 1977) |
| 1227 | dz, Dzongkha language (ISO 639-1 code) |
| 1228 | DZ, Algeria (ISO 3166 digram),Drizzle (METAR Code), Drop Zone |
| 1229 | DZA, Algeria (ISO 3166 trigram) |
| 1230 | DZD, Algerian dinar (ISO 4217 currency code) |
| 1231 | dzo, Dzongkha language (ISO 639-2 code) |
| 1232 | E, East |
| 1233 | EA, Electronic Attack,Emotions Anonymous,Engagement Area,Electronic Arts,Enrolled Agent,Environmental Assessment,Enterprise Architect, Exaampere |
| 1234 | EABU, Explain Acronyms Before Use |
| 1235 | EAC, Echelons Above Corps |
| 1236 | EAPC, Euro-Atlantic Partnership Council |
| 1237 | EASA, European Aviation Safety Agency |
| 1238 | EAST, Experimental Advanced Superconducting Tokamak |
| 1239 | EBD, Electronic Brake Distribution |
| 1240 | EBE, Extraterrestrial Biological Entity |
| 1241 | EBO,(i/a) Effects Based Operations,Encyclopædia Britannica Online,European Board of Ophthalmology |
| 1242 | EBSA, Employee Benefits Security Administration |
| 1243 | EBW, Electron Beam Welding |
| 1244 | EBW, Exploding BridgeWire |
| 1245 | ECB- England (and Wales) Cricket Board,European Central Bank |
| 1246 | ECBR, European Coalition for Biomedical Research |
| 1247 | ECASS, European Centre for Analysis in the Social Sciences [1] |
| 1248 | ECCM, Electronic Counter-Counter-Measures |
| 1249 | ECFS, Electronic Case Filing System |
| 1250 | ECG, Electrocardiogram |
| 1251 | ECHO- Each Community Helps Others (EPA programme),Educational Concerns for Hunger Organization,European Commission Host Organization,European Commission Humanitarian aid Office, Exchange Clearing House,Expanded Characteristic Option, Explanatory Coherence by Harmony Optimization |
| 1252 | ECHR, European Convention on Human Rights |
| 1253 | ECJ, European Court of Justice |
| 1254 | ECL, Emitter Coupled Logic (electronics) |
| 1255 | ECM- Electronic Counter-Measures,Enterprise Content Management |
| 1256 | ECommHR, European Commission on Human Rights |
| 1257 | ECS- Emergency Contact System,Enhanced Chip Set (computing),EOSDIS Core System,Extended Chip Set (computing) |
| 1258 | ECSC, European Coal and Steel Community (distant ancestor of the EU) |
| 1259 | ECT, ElectroConvulsive Therapy |
| 1260 | ECtHR, European Court of Human Rights |
| 1261 | ECU- Ecuador (ISO 3166 trigram), European Currency Unit (ancestor of the euro) |
| 1262 | ECW- Eastern Championship Wrestling/Extreme Championship Wrestling,ED[edit] |
| 1263 | EDA, European Defence Agency |
| 1264 | EDAC, Error Detection And Correction |
| 1265 | EDCS, Environmental Data Coding Specification |
| 1266 | EDD- Earliest due date,Electron-detachment dissociation,Elena Delle Donne (American basketball player),Employment Development Department (California state agency),End-diastolic dimension,Expected Date of Delivery (pregnancy) |
| 1267 | EDGAR, Electronic Data Gathering, Analysis, and Retrieval (U.S. Securities and Exchange Commission filings database) |
| 1268 | EDH, Eastman Dental Hospital |
| 1269 | EDS- Electronic Data Systems,Electronic Differential System |
| 1270 | EDSA, Epifanio de los Santos Avenue (a major thoroughfare in Manila with great significance to post-1980 Philippines history) |
| 1271 | EDT, Eastern Daylight Saving Time (UTC−4 hours) |
| 1272 | EDTA- Electric Drive Transportation Association, EthyleneDiamineTetraAcetic acid,EE[edit] |
| 1273 | ee, Ewe language (ISO 639-1 code) |
| 1274 | EE- Estonia (ISO 3166 digram; from the country's native name of Eesti), Electrical engineering,Electrical Engineer,E&E, Escape and Evasion (training) |
| 1275 | EEC, European Economic Community (predecessor of the EU) |
| 1276 | EEG, ElectroEncephaloGram |
| 1277 | EEK, Estonian kroon (ISO 4217 currency code) |
| 1278 | EENT, End Evening Nautical Twilight |
| 1279 | EEO, Equal Employment Opportunity |
| 1280 | EEOC, (U.S.) Equal Employment Opportunity Commission |
| 1281 | EEZ, Economic Exclusion Zone or Exclusive Economic Zone |
| 1282 | EF- Electro-focus (Canon lens mount),Entry Foyer, Exafarad |
| 1283 | EFF, Electronic Frontier Foundation |
| 1284 | EFL,English as a Foreign Language |
| 1285 | EFM, Enterprise Feedback Management |
| 1286 | EFOA, European Fuel Oxygenates Association |
| 1287 | EFSA, European Food Safety Authority |
| 1288 | EFT, Electronic Fund Transfer |
| 1289 | EFTA- European Free Trade Area, European Free Trade Association |
| 1290 | EFV, Expeditionary Fighting Vehicle |
| 1291 | EG, Egypt (ISO 3166 digram; FIPS 10-4 country code) |
| 1292 | EGBUS, External Genitalia, Bartholin's glands, Urethra & Skene's glands |
| 1293 | EGCG, EpiGalloCatechin-3-Gallate |
| 1294 | EGIS, Erieye Ground Interface Segment |
| 1295 | EGP, Egyptian pound (ISO 4217 currency code) |
| 1296 | EGRET, Energetic Gamma-Ray Experiment Telescope |
| 1297 | EGY, Egypt (ISO 3166 trigram) |
| 1298 | EH, Exahenry,Western Sahara (ISO 3166 digram) |
| 1299 | EHA- Education for All Handicapped Children Act (U.S. federal legislation; since superseded by the Individuals with Disabilities Education Act), Emotional Health Anonymous |
| 1300 | EHF, Extremely High Frequency |
| 1301 | EHR, Equipment History Record |
| 1302 | Ei, Exbi |
| 1303 | EI, Ireland (FIPS 10-4 country code; from Éire) |
| 1304 | EIA, Environmental Impact Assessment |
| 1305 | EIAH,Environnements Informatiques pour l'Apprentissage Humain |
| 1306 | EIAH,Encyclopedia of Iranian Architectural History |
| 1307 | EIC,East India Company |
| 1308 | EICS,East India Company's Service |
| 1309 | eID,electronic ID |
| 1310 | EIRP, Effective Isotropic Radiated Power |
| 1311 | EIS, Environmental Impact Statement |
| 1312 | EJ, Exajoule |
| 1313 | EK, Equatorial Guinea (FIPS 10-4 country code),Exakelvin |
| 1314 | EKG, Electrocardiogram (from German Elektrokardiogramm) |
| 1315 | EKMS, Electronic Key Management System |
| 1316 | el, Greek language (ISO 639-1 code) |
| 1317 | EL, Exalitre |
| 1318 | ELF-(a/i) Earth Liberation Front,Endangered Language Fund,Eritrean Liberation Front,Executable and Linkable Format,Extremely Low Frequency |
| 1319 | ELINT, Electronic Intelligence |
| 1320 | ell, Greek language (ISO 639-2 code) |
| 1321 | ELL, English Language Learner |
| 1322 | ELM, Edge-Localised Mode (plasma physics) |
| 1323 | ELO, Electric Light Orchestra |
| 1324 | ELP- Emerson, Lake & Palmer,European Left Party |
| 1325 | ELSS, Emergency Life Support Stores |
| 1326 | ELT, Emergency Locator Transmitter |
| 1327 | Em, Exametre |
| 1328 | EM, ElectroMagnetism/ElectroMagnetic |
| 1329 | EMA,(i/a) European Medicines Agency |
| 1330 | EMC- Electric Membership Corporation,Electromagnetic Compatibility,Electro-Motive Corporation,European Muon Collaboration,Evergreen Marine Corporation |
| 1331 | EMCON, (Electromagnetic) Emissions Control |
| 1332 | EMD- General Motors Electro-Motive Division,Engineering and Manufacturing Development,European Missile Defence |
| 1333 | EMDG, Euro-Missile Dynamics Group |
| 1334 | EMDR, Eye Movement Desensitisation and Reprocessing |
| 1335 | EMEA, Europe, Middle East and Africa |
| 1336 | EMF- Electromotive force,Epsom Mad Funkers (1990s-2000s indie dance band) |
| 1337 | EMG, ElectroMyoGraph |
| 1338 | EMO, Emergency Measures Organisation- Emotional |
| 1339 | EMP, ElectroMagnetic Pulse |
| 1340 | EMS, Emergency Medical Services |
| 1341 | EMT, Emergency Medical Technician |
| 1342 | EMU, Electric Multiple Unit,a method of connecting self-propelled railway vehicles together to form a train under the control of one driver. |
| 1343 | en, English language (ISO 639-1 code) |
| 1344 | EN- Corps of Engineers, Estonia (FIPS 10-4 country code),Exanewton |
| 1345 | ENCODE, Encyclopedia of DNA Elements (human genome data project) |
| 1346 | ENE, East North-East |
| 1347 | eng, English language (ISO 639-2 code) |
| 1348 | ENG, England (FIFA trigram; not eligible for an ISO 3166 or IOC trigram) |
| 1349 | ENT, Ear, Nose and Throat |
| 1350 | ENTEC, Euro NATO Training Engineer Centre |
| 1351 | ENVL, Envelope |
| 1352 | ENY, Enemy |
| 1353 | eo, Esperanto language (ISO 639-1 code) |
| 1354 | EO- Electro-Optics,Engagement Operations |
| 1355 | EOD, Explosive Ordnance Disposal |
| 1356 | EOG, ElectroOculoGraphy |
| 1357 | EOS- Earth Observation Satellite,(a/i) Electro-Optical System, Canon's autofocusing system for film and digital SLR cameras, Electrophoresis Operations in Space, a space manufacturing project of the McDonnell Douglas Astronautics Company |
| 1358 | EOSAT, Earth Observation Satellite |
| 1359 | EOSDIS,(a/i) Earth Observation Satellite Data and Information System |
| 1360 | EOTS- Electro-Optical Tactical Sensor,(a/i) Eye Of The Storm (World of Warcraft) |
| 1361 | EOM, End of Message |
| 1362 | EP, European Parliament |
| 1363 | EP, Extended play |
| 1364 | EPA- EicosaPentaenoic Acid, Environmental Protection Agency |
| 1365 | EPCOT, Experimental Prototype Community Of Tomorrow |
| 1366 | EPCR- Endothelial protein C receptor,European Professional Club Rugby |
| 1367 | EPGS, EOS Polar Ground Sites |
| 1368 | EPIRB,(a/i) Emergency Position Indicating Radio Beacon |
| 1369 | EPL, English Premier League |
| 1370 | epo, Esperanto language (ISO 639-2 code) |
| 1371 | EPOS, Electronic Point Of Sale |
| 1372 | EPPA, Employee Polygraph Protection Act |
| 1373 | EPR, European Pressurised [Nuclear] Reactor |
| 1374 | EPW- Earth Penetrator Weapon/Warhead,Economic and Political Weekly (Indian publication),Enemy Prisoner of War,EQ[edit] |
| 1375 | EQ, Emotional Quotient |
| 1376 | EQG, Equatorial Guinea (FIFA trigram, but not IOC or ISO 3166) |
| 1377 | Er, Erbium |
| 1378 | ER- Emergency Room, Eritrea (ISO 3166 digram; FIPS 10-4 country code) |
| 1379 | ERA- Earned run average,Engineering Research Associates,Equal Rights Amendment,English Racing Automobiles,European Railway Agency |
| 1380 | ERCIM,(a/i) European Research Consortium for Informatics and Mathematics |
| 1381 | ERI, Eritrea (ISO 3166 trigram) |
| 1382 | ERLAWS, Eastern Ruapehu Lahar Alarm and Warning System |
| 1383 | ERN, Eritrean nakfa (ISO 4217 currency code) |
| 1384 | EROS, Earth Resources Observation System |
| 1385 | ERP, Engineer Regulating Point |
| 1386 | ERR, Eesti Rahvusringhääling |
| 1387 | ERS, Earth Resources Survey |
| 1388 | ERTS, Earth Resources Technology Satellite (became Landsat) |
| 1389 | ERV, Endogenous RetroVirus |
| 1390 | es, Spanish language (ISO 639-1 code) |
| 1391 | Es- Einsteinium,Exasecond |
| 1392 | ES- El Salvador (FIPS 10-4 country code), Electronic warfare Support, Exasiemens,Spain (ISO 3166 digram; from the country's native name of España) |
| 1393 | ESA- Electro-Spark Alloying,Endangered Species Act,European Space Agency |
| 1394 | ESC- Embryonic Stem Cell,Electronic Stability Control |
| 1395 | ESD, ElectroStatic Discharge |
| 1396 | ESDP, European Security and Defence Policy |
| 1397 | ESE, East South-East |
| 1398 | ESH, Western Sahara (ISO 3166 trigram) |
| 1399 | ESL, English as a Second Language |
| 1400 | ESM, Electronic warfare Support Measures |
| 1401 | ESO, European Southern Observatory |
| 1402 | ESOL, English for Speakers of Other Languages |
| 1403 | ESP- Electronic Stability Program,Extra-sensory perception, Spain (ISO 3166 trigram) |
| 1404 | ESPGHAN,European Society for Paediatric Gastroenterology, Hepatology and Nutrition |
| 1405 | ESPN, Entertainment and Sports Programming Network |
| 1406 | est, Estonian language (ISO 639-2 code) |
| 1407 | EST- Eastern Standard Time (UTC−5 hours), Estonia (ISO 3166 trigram) |
| 1408 | ESU, Emergency Services Unit |
| 1409 | ESV, Engineer Support Vehicle |
| 1410 | et, Estonian language (ISO 639-1 code) |
| 1411 | ET- Ethiopia (ISO 3166 digram; FIPS 10-4 country code) |
| 1412 | Exatesla- Extra Terrestrial |
| 1413 | ETB, Ethiopian Birr (ISO 4217 currency code) |
| 1414 | ETF, Emergency Task Force (a special police unit, also jocularly said to stand for Extra-Thick Fuzz) |
| 1415 | ETH, Ethiopia (ISO 3166 trigram) |
| 1416 | ETI, Extra-Terrestrial Intelligence |
| 1417 | ETLA, Extended TLA |
| 1418 | ETM- Electronic Technical Manual,Enhanced Thematic Mapper |
| 1419 | ETOPS, Extended-range Twin-engine Operational Performance Standards (aviation) |
| 1420 | ETT, Embedded Training Team |
| 1421 | eu, Basque language (ISO 639-1 code) |
| 1422 | Eu, Europium |
| 1423 | EU- Europa Island (FIPS 10-4 country code), European Union |
| 1424 | EUCOM, (U.S.) European Command |
| 1425 | EUR, euro (ISO 4217 currency code) |
| 1426 | eus, Basque language (ISO 639-2 code) |
| 1427 | EUUSA, European Union and United States of America |
| 1428 | EV, Exavolt |
| 1429 | EVA- Earned Value Analysis,Economic value added,Ethylene-Vinyl Acetate,Extra-Vehicular Activity |
| 1430 | EVIL, Electronic viewfinder (with) interchangeable lens (a type of digital camera) |
| 1431 | EW, Electronic Warfare, Exawatt |
| 1432 | ewe, Ewe language (ISO 639-2 code) |
| 1433 | EWR, Newark Liberty International Airport (IATA airport code) |
| 1434 | EWTN, Eternal Word Television Network |
| 1435 | EXREP, Expeditious Repair (SM&R code) |
| 1436 | EZ, Czech Republic (FIPS 10-4 country code), Extraction Zone |
| 1437 | f, Femto |
| 1438 | F, Farad,Fluorine |
| 1439 | fa, Persian language (ISO 639-1 code) |
| 1440 | FA,Food Addicts in Recovery Anonymous |
| 1441 | fA, Femtoampere |
| 1442 | FA, Field Artillery,Financial Aid,Football Association (England) |
| 1443 | FAA, U.S. Federal Aviation Administration,Financial Aid Administrator,Fleet Air Arm,Functional Area Analysis |
| 1444 | FAAD, Forward Area Air Defence |
| 1445 | FAADEZ, Forward Area Air Defence Engagement Zone |
| 1446 | FAAN, Fellow of the American Academy of Neurology |
| 1447 | FAAFP,Fellow of the American Academy of Family Physicians |
| 1448 | FAAN, Fellow of the American Academy of Nursing |
| 1449 | FAAQ,(a/i) Frequently Asked and Anticipated Questions (cf. FAQ) |
| 1450 | FAASV, Field Artillery Ammunition Supply Vehicle |
| 1451 | FAB, Feline Advisory Bureau (UK feline charity) |
| 1452 | FAC, Forward Air Controller,Front of Allies for Change,Frontal Affinity Chromatography,Full Aperture Calibrator |
| 1453 | FACA, (US) Federal Advisory Committee Act |
| 1454 | FACH, Fuerza Aérea de Chile |
| 1455 | FACN, Fellow of the American College of Nutrition |
| 1456 | FACP, Fellow of the American College of Physicians |
| 1457 | FACS, Fellow of the American College of Surgeons, Formal Aspects of Computing Science,Fluorescent-activated cell sorting |
| 1458 | FACTS, Flexible Alternating Current Transmission System |
| 1459 | FAD, Flavin Adenine Dinucleotide,Fuck A Duck, Funding Authorization Document |
| 1460 | FAH, Federation of American Hospitals,Fine Arts and Humanities,Foreign Affairs Handbook |
| 1461 | FAM, Foreign Affairs Manual |
| 1462 | fao, Faroese language (ISO 639-2 code) |
| 1463 | FAO, Food and Agriculture Organization |
| 1464 | FAPA,Fellow of the American Psychological Association |
| 1465 | FAPHA,Fellow of the American Public Health Association |
| 1466 | FARP, Forward Arming and Refuelling Point / Forward Area Rearm/refuel Point |
| 1467 | fas, Persian language (ISO 639-2 code) |
| 1468 | FAS, Federation of American Scientists,Fetal Alcohol Syndrome |
| 1469 | FASCAM, Family of Scatterable Mines[1] |
| 1470 | FASD, Fetal Alcohol Spectrum Disorder |
| 1471 | FASEB,(a/i) Federation of American Societies for Experimental Biology |
| 1472 | FAT, Field Artillery Tractor,File Allocation Table |
| 1473 | FAVS, Future Armoured Vehicle System |
| 1474 | FAW, Football Association of Wales |
| 1475 | FB,Facebook, An on-line social network |
| 1476 | FBCS, Fellow of the British Computer Society |
| 1477 | FBI, Federal Bureau of Investigation |
| 1478 | FBIS, Foreign Broadcast Information Service |
| 1479 | FBIDST, Fellow of the British Institute of Dental and Surgical Technologists |
| 1480 | FBM, Board foot |
| 1481 | FBR- Fast Breeder Reactor,Foundation for Biomedical Research,Friedman, Billings, Ramsey (now known as Arlington Asset Investment) |
| 1482 | FBS-Federal Bureau of Statistics (Pakistan),Fetal bovine serum,Football Bowl Subdivision (U.S. college football),Fukuoka Broadcasting Corporation,FC[edit] |
| 1483 | fC, Femtocoulomb |
| 1484 | FC- Fire Control,Football Club, Funnel Cloud (METAR Code) |
| 1485 | FCC, U.S. Federal Communications Commission |
| 1486 | FCE, First Certificate in English |
| 1487 | FCF, Financial Free Cash Flow |
| 1488 | FCLA,Fraud Claims Law Associate |
| 1489 | FCM- Federation of Canadian Municipalities,Fogarty's Cove Music |
| 1490 | FCO, UK Foreign and Commonwealth Office |
| 1491 | FCW, Florida Championship Wrestling |
| 1492 | FD, Falun Dafa |
| 1493 | FDA, Food and Drug Administration (U.S.) |
| 1494 | FDC, Federal Detention Center (U.S.),Fire Direction Centre |
| 1495 | FDDI, Fibre Distributed Data Interface |
| 1496 | FDBK,(I) Feedback |
| 1497 | FDR, Flight Data Recorder,Franklin Delano Roosevelt |
| 1498 | Fe, Iron (Latin Ferrum) |
| 1499 | FE, Fully Exposed (armoured vehicle target, as opposed to Hull-Down) |
| 1500 | FEAR, First Encounter Assault Recon,False Evidence Appears Real |
| 1501 | FEAST,(a/i) Forum for European-Australian Science and Technology Cooperation |
| 1502 | FEATS, Festival of European Anglophone Theatrical Societies link title |
| 1503 | FEBA, Forward Edge of the Battle Area |
| 1504 | FED,(a/i) Field emission display |
| 1505 | FEDEP, Federation Development Process (Simulation) |
| 1506 | FEF, Frontal Eye Field (neurophysiology) |
| 1507 | FEMA-(a/i) Farm Equipment Manufacturers Association,(a/i) U.S. Federal Emergency Management Agency,Fire Equipment Manufacturers' Association |
| 1508 | FENS,(a/i) Federation of European Neuroscience Societies |
| 1509 | FEP, Firepower Enhancement Program,Fleet satellite (FLTSAT) Extremely high frequency (EHF) Package |
| 1510 | FES, Flywheel Energy Storage |
| 1511 | FEST, Frankfurt English Speaking Theatre link title |
| 1512 | FET, Field-effect transistor |
| 1513 | FEZ,(a/i) Fighter Engagement Zone |
| 1514 | ff, Fula language (ISO 639-1 code) |
| 1515 | fF, Femtofarad |
| 1516 | FF- Final Fantasy, Firefox (Web browser) |
| 1517 | FFA- Football Federation Australia,Pacific Islands Forum Fisheries Agency,Free-Fire Area,Fusiform Face Area,Future Farmers of America (today the National FFA Organization) |
| 1518 | FFB, Frum From Birth (referring to an observant Jew born into a religiously observant family) |
| 1519 | FFC, Free For Chat |
| 1520 | FFE, Fukuoka Futures Exchange |
| 1521 | FFG, Guided Missile Frigate (hull classification symbol) |
| 1522 | FFOV, Forward Field Of View |
| 1523 | FFS, For Fuck's Sake |
| 1524 | FFT- Fast Fourier Transform,Final Fantasy Tactics,FG[edit] |
| 1525 | FG, Falun Gong |
| 1526 | fg, Femtogram |
| 1527 | FG, Fog (METAR Code),French Guiana (FIPS 10-4 territory code) |
| 1528 | FGR, Flickr Group Roulette |
| 1529 | fH, Femtohenry |
| 1530 | FHFIF, Foster's Home for Imaginary Friends |
| 1531 | FHI, Family Health International, Fuji Heavy Industries, Ltd. |
| 1532 | fi, Finnish language (ISO 639-1 code) |
| 1533 | FI, Finland (ISO 3166 digram; FIPS 10-4 country code) |
| 1534 | FIB, Fucking Illinois Bastard (Wisconsin slang, variants exist) |
| 1535 | FIBUA,(i/a) Fighting In Built-Up Areas |
| 1536 | FIC, Fellowship for Intentional Community |
| 1537 | FID, Foreign Internal Defence |
| 1538 | FIE, Fly-In Echelon |
| 1539 | FIFO, First In, First Out |
| 1540 | FIFRA, Federal Insecticide, Fungicide, and Rodenticide Act |
| 1541 | FIGJAM, Fuck I'm Good, Just Ask Me |
| 1542 | fij, Fijian language (ISO 639-2 code) |
| 1543 | FILO, First In, Last Out (see also LIFO) |
| 1544 | FIMPT, Fellow of the Institute of Maxillofacial Prosthetists and Technologists |
| 1545 | fin, Finnish language (ISO 639-2 code) |
| 1546 | FIN, Finland (ISO 3166 trigram) |
| 1547 | FIPS, Federal Information Processing Standard |
| 1548 | FIRES,Fever Induced Refractory Epilepsy Syndrome or Febrile Infection-Related Epilepsy Syndrome |
| 1549 | FISH, Fluorescence In-Situ Hybridisation |
| 1550 | FiST, Fire Support Team |
| 1551 | FITS, Flexible Image Transport System |
| 1552 | FIU, Florida International University |
| 1553 | fj, Fijian language (ISO 639-1 code) |
| 1554 | fJ, Femtojoule |
| 1555 | FJ, Fiji (ISO 3166 digram; FIPS 10-4 country code) |
| 1556 | FJD, Fiji dollar (ISO 4217 currency code) |
| 1557 | FJI, Fiji (ISO 3166 trigram) |
| 1558 | FJN, Financial Job Network |
| 1559 | fK, Femtokelvin |
| 1560 | FK, Falkland Islands (ISO 3166 digram; FIPS 10-4 territory code) |
| 1561 | FKP, Falkland Islands pound (ISO 4217 currency code) |
| 1562 | FKSM, Fort Knox Supplemental Manual |
| 1563 | FKT, Fastest Known Time |
| 1564 | fL, Femtolitre |
| 1565 | FL, Florida (postal symbol) |
| 1566 | FLA, Florida, Front Line Assembly,Future Large Aircraft |
| 1567 | FLAB, Four-letter abbreviation |
| 1568 | FLAC,(a/i) Free Lossless Audio Codec |
| 1569 | FLAC,(a/i) Free Legal Advice Centres |
| 1570 | FLB, Forward Logistics Base |
| 1571 | FLET,(a/i) Forward Line of Enemy Troops |
| 1572 | FLG, Falun Gong |
| 1573 | FLIP, Flight Information Publication |
| 1574 | FLIR, Forward Looking InfraRed (sensor) |
| 1575 | FLK, Falkland Islands (ISO 3166 trigram) |
| 1576 | FLOT,(a/i) Forward Line of Own Troops |
| 1577 | FLSA, Fair Labor Standards Act |
| 1578 | FLQ, Free Legal Questions |
| 1579 | FLTSAT, Fleet Satellite |
| 1580 | FLTSATCOM, Fleet Satellite Communication System |
| 1581 | FLUBOS, Fat, Lazy, Useless, Bag Of Shit |
| 1582 | FM, Factory Mutual http://fmglobal.com |
| 1583 | fm, Femtometre |
| 1584 | Fm, Fermium |
| 1585 | FM- Federal Magistrate (Australian post-nominal), Federated States of Micronesia (postal symbol; ISO 3166 digram; FIPS 10-4 territory code), Field Manual,Flight Manager,Frequency Modulation (electronics) |
| 1586 | FMC- Federal Magistrates' Court (an Australian federal court, formerly FMS),Food Machinery Corporation (original name of the company now known as FMC Corporation) |
| 1587 | FMCA, Federal Magistrates' Court of Australia (used for citing decisions of the FMC other than family law decisions) |
| 1588 | FMCAfam, Federal Magistrates' Court of Australia: family (used for citing family law decisions of the FMC) |
| 1589 | FME, Formal Methods Europe |
| 1590 | FMECA, Failure Modes and Effect Criticality Analysis |
| 1591 | FMJD, Fédération Mondiale du Jeu de Dames[2] |
| 1592 | FMLA, Family Medical Leave Act |
| 1593 | fMRI, Functional Magnetic Resonance Imaging |
| 1594 | FMSF, False Memory Syndrome Foundation |
| 1595 | FMTV, Family of Medium Tactical Vehicles |
| 1596 | FMCG, (Fast Moving Consumer Goods) |
| 1597 | fN, Femtonewton |
| 1598 | FNA, Functional Needs Analysis |
| 1599 | fo, Faroese language (ISO 639-1 code) |
| 1600 | FOAD, Fuck Off And Die |
| 1601 | FOAF, Friend Of A friend |
| 1602 | FoB, Free On Board (shipping) |
| 1603 | FOB,(i/a) Forward Operating Base |
| 1604 | FOC, Full Operational Capability,First of Class |
| 1605 | FoE, Friends of the Earth |
| 1606 | FOGC, Federal Oil and Gas Council |
| 1607 | FOH, Front Of House |
| 1608 | FOIA, Freedom of Information Act |
| 1609 | FOM, Federation Object Model |
| 1610 | FONSI, Finding of No Significant Impact |
| 1611 | FOO, Forward Observation Officer |
| 1612 | FOR, Field Of Regard,Frame Of Reference |
| 1613 | Fortran, The IBM Mathematical FORmula TRANslating System (programming language) |
| 1614 | FOS, Florida Ornithological Society,Full Operational Status |
| 1615 | FoS, Family of Systems |
| 1616 | FOSE, Fallout 3 Script Extender |
| 1617 | FOSE, Federal Office Systems Expo |
| 1618 | FOT, Free on truck |
| 1619 | FOTA, Fellow of the Orthodontic Technicians Association |
| 1620 | FOTC,Flight of the Conchords |
| 1621 | FOUO, For Official Use Only |
| 1622 | FOV, Field Of View |
| 1623 | FP, French Polynesia (FIPS 10-4 territory code) |
| 1624 | fps, frames per second (motion pictures, television, computer graphics) |
| 1625 | FPS- Fire Prevention System,First Person Shooter (computer/video games) |
| 1626 | FOOP, Friends Of Organ Pipes (Volunteer group) |
| 1627 | FQ, Baker Island (FIPS 10-4 territory code),French Southern and Antarctic Territories (ISO 3166 digram; obsolete 1979) |
| 1628 | FQDN, Fully Qualified Domain Name |
| 1629 | fr, French language (ISO 639-1 code) |
| 1630 | Fr, Francium |
| 1631 | FR, France (FIPS 10-4 country code; ISO 3166 digram) |
| 1632 | fra, French language (ISO 639-2 code) |
| 1633 | FRA- Federal Railroad Administration, France (ISO 3166 trigram) |
| 1634 | FRAND, Fair, reasonable, and non-discriminatory (concept in standards-setting and intellectual property law) |
| 1635 | FRCP- Federal Rules of Civil Procedure,Fellow of the Royal College of Physicians |
| 1636 | FRICBM, Full Range ICBM |
| 1637 | frr, North Frisian language (ISO 639-2 code) |
| 1638 | FRO, Faroe Islands (ISO 3166 trigram) |
| 1639 | FRS- Fellow of the Royal Society,U.S. Federal Reserve System |
| 1640 | FRSA, Fellow of the Royal Society of Art |
| 1641 | fry, West Frisian language (ISO 639-2 code) |
| 1642 | FRY, Federal Republic of Yugoslavia |
| 1643 | fs, Femtosecond |
| 1644 | fS, Femtosiemens |
| 1645 | FSA- Fire Support Area,UK Food Standards Agency,Functional Solution Analysis |
| 1646 | FSC- Federal Supply Classification, Forest Stewardship Council (ecological pressure group |
| 1647 | FSCL, Fire Support Co-ordination Line |
| 1648 | FSE, Fire Support Element |
| 1649 | FSF, Free Software Foundation |
| 1650 | FSH, Follicle Stimulating Hormone |
| 1651 | FSI, Fuel Stratified Injection |
| 1652 | FSM- Federated States of Micronesia (ISO 3166 trigram), Flying Spaghetti Monster (satirical religion) |
| 1653 | FSO- Fire Support Officer,Flotilla Staff Officer,Foreign Service Officer |
| 1654 | FSS, Fire Support Station |
| 1655 | FSSP, Families of Structurally Similar Proteins |
| 1656 | FST- Finance Support Team,Finlands Svenska Television (Finland's Swedish-language television),Future Soviet Tank (Cold War era) |
| 1657 | FSTC, Foreign Science Technology Center (now NGIC) |
| 1658 | fT, Femtotesla |
| 1659 | FTC, Federal Trade Commission |
| 1660 | FTE, Full Time Equivalent |
| 1661 | FTL, Faster Than Light |
| 1662 | FTP, File Transfer Protocol |
| 1663 | FTW, For The Win (a commonly used phrase used online to indicate success) F@#K The World, Forever Together Where ever (gang slogan) |
| 1664 | FTS, Flight Termination System used during some rocket launches |
| 1665 | FTS, Fuck That Shit |
| 1666 | FU, Smoke (METAR Code) |
| 1667 | FUBAR, Fucked/Fouled Up Beyond All Recognition/Repair |
| 1668 | FUCK, For, Unlawful, Carnal, Knowledge (Van Halen album title) |
| 1669 | FUD, Fear, Uncertainty & Doubt (marketing strategy) |
| 1670 | ful, Fula language (ISO 639-2 code) |
| 1671 | fV, Femtovolt |
| 1672 | fW, Femtowatt |
| 1673 | FW, Forward |
| 1674 | FWC, Football World Cup |
| 1675 | FWF, Fixed Word Format |
| 1676 | FWI, French West Indies |
| 1677 | FWIW, For What It's Worth |
| 1678 | FWS, U.S. Fish and Wildlife Service |
| 1679 | FWT, Fresh Water Tank |
| 1680 | FX, Firefox,Fox Extended, Metropolitan France (ISO 3166 digram; obsolete 1997),Special effect |
| 1681 | FXX, Metropolitan France (ISO 3166 trigram; obsolete 1997) |
| 1682 | fy, West Frisian language (ISO 639-1 code) |
| 1683 | FY, Fiscal Year, Former Yugoslav Republic of Macedonia (NATO country code) |
| 1684 | FYA, For Your Agenda |
| 1685 | FYDP, Five-Year Defense Plan (U.S.) |
| 1686 | FYI, For Your Information |
| 1687 | FYROM, Former Yugoslav Republic of Macedonia |
| 1688 | FZDZ, Freezing Drizzle (METAR Code) |
| 1689 | FZFG, Freezing Fog (METAR Code) |
| 1690 | FZRA, Freezing Rain (METAR Code) |
| 1691 | g, Gram |
| 1692 | G, Gauss, General Audiences (movie rating) |
| 1693 | G1, Assistant Chief-of-Staff, Personnel |
| 1694 | G2, Assistant Chief-of-Staff, Intelligence |
| 1695 | G3,many, including Heckler & Koch G3; see entry, Assistant Chief-of-Staff, Operations and Plans |
| 1696 | G4, Generation Four PowerPC microprocessor, Assistant Chief-of-Staff, Logistics |
| 1697 | G5, Generation Five PowerPC microprocessor, Assistant Chief-of-Staff, Public Affairs |
| 1698 | G6, Assistant Chief-of-Staff, Information Technology, Group of 6 (France, Germany, United States, Japan, United Kingdom, Italy) (1975) |
| 1699 | G7, Assistant Chief-of-Staff, Training, Group of 7 (G6 + Canada) (1976) |
| 1700 | G8, Assistant Chief-of-Staff, Finance, Group of 8 (G7 + Russia) (1998) |
| 1701 | G10, Group of 10 (G7 + Belgium, Netherlands, Sweden, Switzerland; numbering 11 in fact) |
| 1702 | G15, Group of 15 (subset of G77, formed 1989: Algeria, Argentina, Brazil, Chile, Egypt, India, Indonesia, Jamaica, Kenya, Nigeria, Malaysia, Mexico, Peru, Senegal, Sri Lanka, Venezuela and Zimbabwe; currently numbers 17) |
| 1703 | G20, Group of 20 (G8 + Argentina, Australia, Brazil, China, India, Indonesia, Mexico, Saudi Arabia, South Africa, South Korea, Turkey + current European Union presiding country) (1999) |
| 1704 | G24, Group of 24 (subset of G77, formed 1971: Algeria, Argentina, Brazil, Colombia, Côte d'Ivoire, Democratic Republic of the Congo, Egypt, Ethiopia, Gabon, Ghana, Guatemala, India, Iran, Lebanon, Mexico, Nigeria, Pakistan, Peru, Philippines, South Africa, Syria, Sri Lanka, Trinidad and Tobago and Venezuela) |
| 1705 | G77, Group of 77 (issued from the United Nations Conference on Commerce and Development, 1964; currently numbers 133) |
| 1706 | Ga, Gallium,Gigaannum |
| 1707 | GA, Gabon (ISO 3166 digram),The Gambia (FIPS 10-4 country code), Gamblers Anonymous,Georgia (postal symbol),Gigaampere,Goa (Indian state code) |
| 1708 | GAAR, General Anti-Avoidance Rule (tax evasion) |
| 1709 | GAB, Gabon (ISO 3166 trigram) |
| 1710 | GABA, Gamma-AminoButyric Acid |
| 1711 | GAD, Generalized Anxiety Disorder |
| 1712 | GAF, Garfield and Friends |
| 1713 | GALCIT, Guggenheim Aeronautical Laboratory, California Institute of Technology |
| 1714 | GAO, U.S. Government Accountability Office |
| 1715 | GAW, Global Atmospheric Watch |
| 1716 | GB, Gabon (FIPS 10-4 country code),United Kingdom of Great Britain and Northern Ireland (ISO 3166 digram) [glamour boy 7-9/10] |
| 1717 | GBBC, Great (Global) Backyard Bird Count |
| 1718 | GBE, Knight/Dame Grand Cross of the Order of the British Empire |
| 1719 | GBH- Great Bash Heel (Japanese professional wrestling stable),Gregory Bonner Hale (British design and advertising agency),Grievous bodily harm |
| 1720 | GBP, United Kingdom pound sterling (ISO 4217 currency code) |
| 1721 | GBR, United Kingdom of Great Britain and Northern Ireland (ISO 3166 trigram) |
| 1722 | GBU, Glide-Bomb Unit,Global Business Unit |
| 1723 | GC- East Germany (NATO country code; obsolete 1990), General classification (cycling),General counsel,George Cross (British civil decoration), Gigacoulomb [Grindr cruise] |
| 1724 | GCA, Graduate in Claims Administration |
| 1725 | GCD,see entry |
| 1726 | GCF, Greatest Common Factor |
| 1727 | GCI, Ground-controlled interception |
| 1728 | GCN, Gamma-ray burst Coordination Network |
| 1729 | GCS, Global Coordinate System |
| 1730 | GCSE, General Certificate of Secondary Education (UK) |
| 1731 | gd, Scottish Gaelic language (ISO 639-1 code) |
| 1732 | Gd, Gadolinium |
| 1733 | GD, Grenada (ISO 3166 digram) |
| 1734 | GDC, Game Developers Conference,General Dental Council |
| 1735 | GDL, Game Definition Language |
| 1736 | GDP, General Dental Practitioner (UK),Gross Domestic Product |
| 1737 | GDR, German Democratic Republic (cf. DDR) |
| 1738 | GDR, General Distribution Release (Microsoft Term for a software service release; between Hotfix and Service Pack) |
| 1739 | GDW, Game Designers Workshop |
| 1740 | Ge, Germanium |
| 1741 | GE, General Electric,Genetic Engineering (cf. GM), Georgia (ISO 3166 digram) |
| 1742 | GEBCO, General Bathymetric Chart of the Oceans |
| 1743 | GEC, Great Engineering Challenge |
| 1744 | GED, General Educational Development (high school equivalency credential in the U.S. and Canada) |
| 1745 | GEEP, Geophysical Equipment Exploration Platform |
| 1746 | GEL, Georgian lari (ISO 4217 currency code),Gilbert and Ellice Islands (ISO 3166 trigram; obsolete 1977) |
| 1747 | GEMA, Gas and Electricity Markets Authority,Georgia Emergency Management Agency, Gesellschaft für musikalische Aufführungs- und mechanische Vervielfältigungsrechte (German performance rights organisation), Global Engine Manufacturing Alliance |
| 1748 | GEN, Full General (four stars) in the U.S. Army |
| 1749 | GEO, Geostationary Earth Orbit, Georgia (ISO 3166 trigram) |
| 1750 | GEOS, Graphical Environment Operating System |
| 1751 | GEQ, Equatorial Guinea (IOC trigram, but not FIFA or ISO 3166) |
| 1752 | GER, Germany (IOC and FIFA trigram, but not ISO 3166) |
| 1753 | GeV, Gigaelectron-volt |
| 1754 | GEV, Ground Effect Vehicle |
| 1755 | GF- French Guiana (ISO 3166 digram),Gigafarad |
| 1756 | GFCF- Gluten-free, casein-free diet,Gross fixed capital formation |
| 1757 | GFCI, Ground Fault Circuit Interruptor (aka GFI) |
| 1758 | GFDL, GNU Free Documentation License |
| 1759 | GFE- Girlfriend experience (used in escort services),Good Faith Estimate,Government Furnished Equipment |
| 1760 | GFI, Ground Fault Interruptor (aka GFCI) |
| 1761 | GFL, German Football League (Germany's Bundesliga for American football; the English-language name is used in German without translation) |
| 1762 | GFN, Global Footprint Network |
| 1763 | GG, Georgia (FIPS 10-4 country code) |
| 1764 | GGK,Good God Karma |
| 1765 | GGP- General Game Playing,General Growth Properties (U.S. shopping center owner),GH[edit] |
| 1766 | GH, Ghana (ISO 3166 digram; FIPS 10-4 country code),Gigahenry |
| 1767 | GHA, Ghana (ISO 3166 trigram) |
| 1768 | GHB, gamma-Hydroxybutyric acid |
| 1769 | GHC, Ghanan cedi (ISO 4217 currency code) |
| 1770 | Gi, Gibi |
| 1771 | GI, Galvanised Iron,Gastro-Intestinal,General Issue, Gibraltar (ISO 3166 digram; FIPS 10-4 territory code), Government Issue |
| 1772 | GIB, Gibraltar (ISO 3166 trigram) |
| 1773 | GIF, Graphics Interchange Format |
| 1774 | GIG, Global Information Grid |
| 1775 | GIGO, Garbage In Garbage Out (computing) |
| 1776 | GIMP, GNU Image Manipulation Program |
| 1777 | GIN, Guinea (ISO 3166 trigram), Guidelines International Network |
| 1778 | GINK,Going Insane Not Knowing,orig. Colorado 2010 M.Kalfas |
| 1779 | GINO, Godzilla In Name Only |
| 1780 | GIP, Gibraltar pound (ISO 4217 currency code) |
| 1781 | GIS, Geographic Information System, Google Image Search |
| 1782 | GISS,(a/i) General Impression of Size and Shape,Goddard Institute for Space Studies |
| 1783 | GJ, Gigajoule,Grenada (FIPS 10-4 country code),Gujarat (Indian state code) |
| 1784 | GJD, Geocentric Julian Day |
| 1785 | GK, Gigakelvin,Guernsey (FIPS 10-4 territory code) |
| 1786 | gl, Galician language (ISO 639-1 code) |
| 1787 | GL- Gigalitre, Graphics Language, Greenland (ISO 3166 digram; FIPS 10-4 territory code), Grenade Launcher |
| 1788 | gla, Scottish Gaelic language (ISO 639-2 code) |
| 1789 | GLAAD, Gay and Lesbian Alliance Against Defamation |
| 1790 | GLAC, General Ledger Accounting Code |
| 1791 | GLAST, Gamma-ray Large Area Space Telescope |
| 1792 | GLBA, Gramm-Leach-Bliley Act |
| 1793 | GLC, Gas-liquid chromatography |
| 1794 | gle, Irish language (ISO 639-2 code) |
| 1795 | glg, Galician language (ISO 639-2 code) |
| 1796 | GLINT- Gallium-arsenide Laser Illuminator for Night TV,Gated Laser Illuminator for Narrow Television, Gated Laser Intensifier (tape),Gospel Literature International,Graphical Linux Installation Tool |
| 1797 | GLP, Guadeloupe (ISO 3166 trigram) |
| 1798 | GLUT,(a/i) OpenGL Utility Toolkit |
| 1799 | glv, Manx language (ISO 639-2 code) |
| 1800 | GLV, Gained Life Value |
| 1801 | Gm, Gigametre |
| 1802 | GM- The Gambia (ISO 3166 digram), GameMaster (role-playing),General Motors,Genetically Modified, Germany (FIPS 10-4 country code), Guru Meditation (computing) |
| 1803 | GMAC- General Motors Acceptance Corporation, the original name of the company now known as Ally Financial,Graduate Management Admission Council,G-MAC, Great Midwest Athletic Conference |
| 1804 | GMB- The Gambia (ISO 3166 trigram), General, Municipal, Boilermakers (and Allied Trade Union) |
| 1805 | GMC- U.K. General Medical Council,Gospel Music Channel |
| 1806 | GMD, Gambian dalasi (ISO 4217 currency code) |
| 1807 | GMFSC, Ground Mobile Forces Satellite Communications |
| 1808 | GMI- Generic Model Interface,Geometry Model Instance |
| 1809 | GML-Generalized Markup Language,Geography Markup Language,Game Maker Language,Graph Modelling Language,Graphical Motion Language,GUI Markup Language |
| 1810 | GMO, Genetically Modified Organism |
| 1811 | GMPCS, Global Mobile Personal Communications by Satellite |
| 1812 | GMT- Giant Magellan Telescope,Greenwich Mean Time,GN[edit] |
| 1813 | gn, Guaraní language (ISO 639-1 code) |
| 1814 | GN- Giganewton,Guinea (ISO 3166 digram) |
| 1815 | GNAS, Grand National Archery Society |
| 1816 | GNB, Guinea-Bissau (ISO 3166 trigram) |
| 1817 | GNF, Guinean franc (ISO 4217 currency code) |
| 1818 | GNOME, GNU Network Object Model Environment |
| 1819 | GNP, Gross National Product |
| 1820 | GNQ, Equatorial Guinea (ISO 3166 trigram) |
| 1821 | GnRH, Gonadotropin-Releasing Hormone |
| 1822 | GNU, GNU's Not Unix |
| 1823 | GO, Glorioso Islands (FIPS 10-4 territory code) |
| 1824 | GOA- General of the Army (United States only), Gun Owners of America |
| 1825 | GOAT, Greatest of all time (LL Cool J album title) |
| 1826 | GOC, General Officer Commanding |
| 1827 | GOES, Geostationary Operational Environmental Satellite |
| 1828 | GOP, Grand Old Party |
| 1829 | gorp, granola, oats, raisins, peanuts (another name for trail mix), probably a backronym |
| 1830 | GOSC,(a/i) General Officer Steering Committee |
| 1831 | GOSH, Great Ormond Street Hospital |
| 1832 | GOSP, Gas/Oil Separation Plant |
| 1833 | GOTS, Government off-the-shelf |
| 1834 | GOYADIN, Get Off Your Arse, Do It Now (anti-procrastination mantra) |
| 1835 | GP, General Practitioner,General Purpose,Grand Prix, Guadeloupe (ISO 3166 digram; FIPS 10-4 territory code) |
| 1836 | GPA, Grade Point Average |
| 1837 | GPC, Global Path Cache |
| 1838 | GPG, GNU Privacy Guard |
| 1839 | GPIB, General-Purpose Instrumentation/Interface Bus |
| 1840 | GPL, GNU General Public License |
| 1841 | GPMP, General Purpose Macro Processor |
| 1842 | GPO, General Post Office |
| 1843 | GPPC, Genetics and Public Policy Center |
| 1844 | GPR, Ground-Penetrating Radar |
| 1845 | GPS, General Problem Solver,Global Positioning System |
| 1846 | GPT, GEC-Plessey Telecommunications,General Purpose Technology,Get Paid To website |
| 1847 | GQ- Equatorial Guinea (ISO 3166 digram), Gentlemen's Quarterly (the original name of the magazine now known simply as GQ), Guam (FIPS 10-4 territory code),GR[edit] |
| 1848 | GR, Greece (FIPS 10-4 country code; ISO 3166 digram),Hail (METAR Code) |
| 1849 | GRAIL, Gravity Recovery and Interior Laboratory |
| 1850 | GRAS, Generally recognized as safe (FDA list) |
| 1851 | GRB, Gamma-Ray Burst |
| 1852 | GRC, Greece (ISO 3166 trigram) |
| 1853 | GRD, Grenada (ISO 3166 trigram) |
| 1854 | GRE- Graduate Record Examination, Greece (IOC and FIFA trigram, but not ISO 3166) |
| 1855 | grep, [search] Globally for Regular Expression, Print [lines] |
| 1856 | GRid,Global Release Identifier, a music industry identifier from the RIAA and IFPI |
| 1857 | GRID, Gay-Related Immune Deficiency (original name of AIDS) |
| 1858 | GriT, Girl raised in Texas (Woman presenting firm southern traits/beliefs) |
| 1859 | GRL, Greenland (ISO 3166 trigram) |
| 1860 | GRN- Grenada (IOC and FIFA trigram, but not ISO 3166), Goods Received Note |
| 1861 | grn, Guaraní language (ISO 639-2 code) |
| 1862 | GRP, Graphite-reinforced plastic, see Carbon-fiber-reinforced polymer |
| 1863 | Gs, Gigasecond |
| 1864 | GS- General Schedule (US civil service pay scale),General Support, Gigasiemens,South Georgia and the South Sandwich Islands (ISO 3166 digram) |
| 1865 | GSR, Gun Shot Residue |
| 1866 | GSA, U.S. General Services Administration |
| 1867 | GSD, Graphical Situation Display |
| 1868 | GSGB,(God send glamour boy 9-10/10) |
| 1869 | GSK, GlaxoSmithKline [good sexual karma] |
| 1870 | GSN,(a/i) Game Show Network |
| 1871 | GSO, General Services Officer (U.S. Department of State) |
| 1872 | GSOH, Good Sense Of Humour |
| 1873 | GSP,Georges St-Pierre (Canadian MMA fighter) |
| 1874 | GSS, Generic Security Services |
| 1875 | GST, Goods and Services Tax (Australia, Canada, and other countries) |
| 1876 | GSW, Gunshot wound |
| 1877 | GT, Gigatesla, Gran Turismo,Grand Touring, Guatemala (FIPS 10-4 country code; ISO 3166 digram) |
| 1878 | GTA, Grand Theft Auto |
| 1879 | GTB, Get to bed, namely to get a new job after a long time of searching, usually following a phone call |
| 1880 | GTC, Gran Telescopio Canarias (Spanish, Canaries Great Telescope) |
| 1881 | GTD, Getting Things Done |
| 1882 | GTG, Got To Go (Internet chat) |
| 1883 | GTK, Good To Know (Internet chat) |
| 1884 | GTGN, Getty Thesaurus of Geographic Names |
| 1885 | GTM, Guatemala (ISO 3166 trigram) |
| 1886 | GTQ, Guatemalan quetzal (ISO 4217 currency code) |
| 1887 | GTV, Gross Tumor Volume quetzal (ISO 4217 currency code) |
| 1888 | gu, Gujarati language (ISO 639-1 code) |
| 1889 | GU, Guam (postal symbol; ISO 3166 digram) |
| 1890 | GUA, Guatemala (IOC and FIFA trigram, but not ISO 3166) |
| 1891 | GUF, French Guiana (ISO 3166 trigram) |
| 1892 | GUILT, Gangliated Utrophin Immuno Latency Toxin |
| 1893 | guj, Gujarati language (ISO 639-2 code) |
| 1894 | GULCR, Grupo de Usuarios de Linux de Costa Rica |
| 1895 | GUT, Grand Unification Theory |
| 1896 | gv, Manx language (ISO 639-1 code) |
| 1897 | GV, Gigavolt,Guinea (FIPS 10-4 country code) |
| 1898 | GW, Games Workshop,Germ Warfare, Gigawatt, Guided Weapon, Guinea-Bissau (ISO 3166 digram) |
| 1899 | GWARS, Ground Warfare System (simulation) |
| 1900 | GWAS, Grand Western Archery Society |
| 1901 | GWOT, Global War on Terrorism |
| 1902 | GWS, Gulf War Syndrome,Greater Western Sydney |
| 1903 | GXA, Global XML Web Services Architecture |
| 1904 | GXE, Gene-enivronment interaction |
| 1905 | GXF, General Exchange Format |
| 1906 | GXH, IATA code of Gannan Xiahe Airport |
| 1907 | GXL, Graph eXchange Language |
| 1908 | GXM, Matrox Graphics eXpansion Module |
| 1909 | GXP, Grid Exit Point, Global Xchange Programme, Indication of highest performance level on some Pontiac vehicles |
| 1910 | GxP, Good X Practice (X can mean: clinical, manufacturing, pharmaceutical, etc.) |
| 1911 | GXY, IATA code of Greeley-Weld County Airport |
| 1912 | GY, Guyana (FIPS 10-4 country code; ISO 3166 digram) |
| 1913 | GYD, Guyana dollar (ISO 4217 currency code) |
| 1914 | GYY, Gary/Chicago International Airport (IATA Airport Code) |
| 1915 | GZ, Gaza Strip (FIPS 10-4 territory code), Ground Zero |
| 1916 | GZK, Greisen-Zatsepin-Kuzmin cut-off (cosmic ray energies) |
| 1917 | h, Hecto |
| 1918 | H, Henry,Hydrogen |
| 1919 | ha, Hausa language (ISO 639-1 code),Hectare |
| 1920 | HA, Haiti (FIPS 10-4 country code), High Availability |
| 1921 | HAARP, High Frequency Active Auroral Research Program |
| 1922 | HAART, Highly Active Anti-Retroviral Therapy |
| 1923 | HAI, Human Awareness Institute |
| 1924 | HAL, Hardware Abstraction Layer |
| 1925 | HALO, High Altitude Low Opening (parachute jump) |
| 1926 | HALT- Highly Accelerated Life Test, Hungry Angry Lonely Tired |
| 1927 | HAM, Amateur radio operator |
| 1928 | HANS, Head And Neck Support (device used in many race cars) |
| 1929 | HARM, High-speed Anti-Radiation Missile |
| 1930 | hat, Haitian Creole language (ISO 639-2 code) |
| 1931 | HAT,(i/a) Highest Astronomical Tide (nautical charts), Hungarian Automated Telescope |
| 1932 | hau, Hausa language (ISO 639-2 code) |
| 1933 | HAW, Heavy Antitank Weapon |
| 1934 | HAWK, Homing All the Way Killer (air defence system) |
| 1935 | HAZ, Heat-Affected Zone |
| 1936 | HAZMAT, Hazardous Materials |
| 1937 | HBCD, HexaBromoCycloDodecane |
| 1938 | HBCI, Home Banking Computer Interface |
| 1939 | HBO, Home Box Office |
| 1940 | HBR, Harvard Business Review |
| 1941 | HBT, Heterojunction Bipolar Transistor |
| 1942 | HBV, Hepatitis B Virus |
| 1943 | HCCI, Homogeneous Charge Compression Ignition |
| 1944 | HCF, Highest Common Factor |
| 1945 | HCI, Human-Computer Interaction/Interface |
| 1946 | HCSC, Higher Command and Staff Course |
| 1947 | HCT, Higher Colleges of Technology, tertiary education institution in the United Arab Emirates (UAE) |
| 1948 | HD- Henry Draper (star catalogue),Hull-Down (armoured vehicle target, as opposed to Fully Exposed),High Definition,Huntington's Disease |
| 1949 | HDD- Hard Disk Drive,High-Density Disk |
| 1950 | HDL, High-Density Lipoprotein |
| 1951 | HDM, Human Decision-Making |
| 1952 | HDMI,High Definition Multimedia Interface |
| 1953 | HDR- Hard disk recorder,Henningson, Durham & Richardson (founders of the engineering and construction firm now known by their initials),High dynamic range, a term used in both digital imaging and 3D rendering,Hot Dry Rock (experimental geothermal technology),Human Development Report (UN publication) |
| 1954 | HDRA, Henry Doubleday Research Association |
| 1955 | HDTV, High-Definition Television |
| 1956 | he, Hebrew language (ISO 639-1 code) |
| 1957 | He, Helium |
| 1958 | HE, High Explosive |
| 1959 | HEAT, High Explosive Anti-Tank (ammunition) |
| 1960 | heb, Hebrew language (ISO 639-2 code) |
| 1961 | HEBA, Hellenic Basketball Clubs Association |
| 1962 | HEER, High-Explosive Extended Range (ammunition) |
| 1963 | HEIC, Honourable East India Company |
| 1964 | HEMP, High-Altitude Electromagnetic Pulse |
| 1965 | HEO- High Earth Orbit, Highly Elliptical Orbit |
| 1966 | HEOSS, High Earth Orbit Space Surveillance |
| 1967 | HEP, High-Explosive Plastic (ammunition) |
| 1968 | HEPA,(a/i) High-Efficiency Particulate Air (filter) |
| 1969 | her, Herero language (ISO 639-2 code) |
| 1970 | HESH, High-Explosive, Squash-Head (ammunition) |
| 1971 | HESV, Heavy Engineering Support Vehicle |
| 1972 | HETT, Heavy Equipment Transporting Truck / Heavy Equipment Truck Tractor |
| 1973 | HEU, Highly Enriched Uranium |
| 1974 | Hewitts, Hills in England, Wales and Ireland over Two Thousand feet (with topographic prominence of at least 30 m) |
| 1975 | Hf, Hafnium |
| 1976 | HF, High Frequency |
| 1977 | HFE, Human Fertilisation and Embryology (UK Act) |
| 1978 | HFE, The common-emitter current gain in a BJT transistor (also represented by βF). See: BJT |
| 1979 | HFEA, Human Fertilisation and Embryology Authority (UK) |
| 1980 | Hg, Mercury (Latin Hydrargyrum) |
| 1981 | HGC, UK Human Genetics Commission |
| 1982 | HGF, Human Growth Factor |
| 1983 | HGTV, Home & Garden Television |
| 1984 | HHB,Ha Ha Bonk,The noise made when you laugh your head off. Used instead of LOL... |
| 1985 | hi, Hindi language (ISO 639-1 code) |
| 1986 | HI, Hawaii (postal symbol) |
| 1987 | HIH, His (or Her) Imperial Highness |
| 1988 | HIM, His (or Her) Imperial Majesty |
| 1989 | HIMAD, High to Medium Altitude Air Defence (see also H/MAD) |
| 1990 | HIMEZ, High Altitude Missile Engagement Zone |
| 1991 | HIMYM,How I Met Your Mother |
| 1992 | hin, Hindi language (ISO 639-2 code) |
| 1993 | HIPAA, U.S. Health Insurance Portability and Accountability Act |
| 1994 | Hipparcos, HIgh Precision Parallax COllecting Satellite |
| 1995 | Hird, Hurd of interfaces representing depth (cf. HURD) |
| 1996 | HiRISE, High Resolution Imaging Science Experiment |
| 1997 | HIT, Health Information Technology |
| 1998 | HIV, Human Immunodeficiency Virus |
| 1999 | HIWT, Hobart Institute of Welding Technology |
| 2000 | HJD, Heliocentric Julian Day |
| 2001 | HK, Hong Kong (ISO 3166 digram; FIPS 10-4 territory code) |
| 2002 | HKD, Hong Kong dollar (ISO 4217 currency code) |
| 2003 | HKG, Hong Kong (ISO 3166 trigram) |
| 2004 | HKS, HyperKinetic Syndrome |
| 2005 | hL, Hectolitre |
| 2006 | HL, Holding Line |
| 2007 | HLA, High Level Architecture (simulation),Human Leukocyte Antigen |
| 2008 | HLL, High-Level Language |
| 2009 | HLN, Headline News |
| 2010 | HLOS, High Level Output Specification |
| 2011 | HLVW, Heavy Logistics Vehicle, Wheeled |
| 2012 | HM, Heard Island and McDonald Islands (ISO 3166 digram; FIPS 10-4 territory code) |
| 2013 | HMCE, Her/His Majesty's Customs and Excise (former UK government department; succeeded by HM Revenue and Customs) |
| 2014 | HMCS- Her/His Majesty's Canadian Ship,Her Majesty's Courts Service (former UK agency; succeeded by Her Majesty's Courts and Tribunals Service) |
| 2015 | HMD, Heard and McDonald Islands (ISO 3166 trigram) |
| 2016 | HMF, HydroxyMethyl Furfural |
| 2017 | HMM, Hidden Markov model |
| 2018 | hmo, Hiri Motu language (ISO 639-2 code) |
| 2019 | HMO, Health maintenance organization |
| 2020 | HMP, Her Majesty's Prison |
| 2021 | HMRC, Her/His Majesty's Revenue and Customs |
| 2022 | HMS- Helmet-mounted display,Her/His Majesty's Ship (Royal Navy) |
| 2023 | HMSO, Her Majesty's Stationery Office |
| 2024 | HMV, His Master's Voice |
| 2025 | HN, Honduras (ISO 3166 digram) |
| 2026 | HND, Honduras (ISO 3166 trigram) |
| 2027 | HNL, Honduran lempira (ISO 4217 currency code) |
| 2028 | ho, Hiri Motu language (ISO 639-1 code) |
| 2029 | Ho, Holmium |
| 2030 | HO, Honduras (FIPS 10-4 country code) |
| 2031 | HOLLAND, Hope Our Love Lasts And Never Dies |
| 2032 | HOMES,the Great Lakes; Huron, Ontario, Michigan, Erie, Superior |
| 2033 | HONY,Humans of New York, a photoblog. |
| 2034 | HOPI, Hybrid Optical and Packet Infrastructure (see Internet2, Abilene Network) |
| 2035 | HoReCa, Hotel, Restaurant and Catering |
| 2036 | HORIZON, Hélicoptère d'observation radar et d'investigation sur zone (French, Zone Investigation and Radar Observation Helicopter) |
| 2037 | HOSTAC, Helicopter Operations from Ships Other Than Aircraft Carriers |
| 2038 | HOT, Highly Optimised Tolerance |
| 2039 | HOTAS, Hands on throttle-and-stick |
| 2040 | HOV, High Occupancy Vehicle |
| 2041 | hp, horse power |
| 2042 | HP, Hewlett-Packard,Hindustan Petroleum, Himachal Pradesh (Indian state code) |
| 2043 | HPA, UK Health Protection Agency |
| 2044 | HPCL, Hindustan Petroleum Corporation Limited |
| 2045 | HPLC, High Performance Liquid Chromatography |
| 2046 | HPT, High[er] Payoff Target |
| 2047 | HPV, Human Papilloma Virus |
| 2048 | HQ, HeadQuarters, Howland Island (FIPS 10-4 territory code) |
| 2049 | HQDA, HeadQuarters, Department of the Army |
| 2050 | hr, Croatian language (ISO 639-1 code) |
| 2051 | HR- Croatia (FIPS 10-4 country code; ISO 3166 digram,from the country's native name of Hrvatska), Haryana (Indian state code), Harvard Revised star catalogue,Human Resources |
| 2052 | HRBL, High-level Representation of Behavior Language (original name of the Herbal language) |
| 2053 | HRD, Human Resource Development |
| 2054 | HRED, (U.S. Army Research Laboratory's) Human Research and Engineering Directorate (Aberdeen Proving Ground, Maryland) |
| 2055 | HRF, High iness Forces |
| 2056 | HRH, His (or Her) Royal Highness |
| 2057 | HRK, Croatian kuna (ISO 4217 currency code) |
| 2058 | HRM, His (or Her) Royal Majesty |
| 2059 | HRM, Human Resource Management |
| 2060 | HRT, Hormone Replacement Therapy |
| 2061 | hrv, Croatian language (ISO 639-2 code) |
| 2062 | HRV- Croatia (ISO 3166 trigram), High Resolution Visible,HS[edit] |
| 2063 | Hs, Hassium |
| 2064 | HSBC, The Hong Kong and Shanghai Banking Corporation |
| 2065 | HSC, Higher School Certificate |
| 2066 | HSM, High School Musical |
| 2067 | HSMAD, Human Science/Modeling and Analysis Data |
| 2068 | HSN, Home Shopping Network |
| 2069 | HSPH, Harvard School of Public Health |
| 2070 | HSS- Health Service Support, High-Speed Steel |
| 2071 | HSSI, High-Speed Serial Interface |
| 2072 | HST,see entry |
| 2073 | HSV- Herpes Simplex Virus,Hue Saturation Value (colour model),HT[edit] |
| 2074 | ht, Haitian Creole language (ISO 639-1 code) |
| 2075 | HTA, HyperText Application |
| 2076 | HTC-High Tech Computer Corporation, original name of the company now known simply as HTC,Horry Telephone Cooperative |
| 2077 | HTFU, Harden The Fuck Up |
| 2078 | HTG, Haitian gourde (ISO 4217 currency code) |
| 2079 | HTH, Hope That Helps |
| 2080 | HTI, Haiti (ISO 3166 trigram) |
| 2081 | HTML, HyperText Markup Language |
| 2082 | HTR, Heated Towel Rail |
| 2083 | HTS, High-Temperature Superconducting wire |
| 2084 | HTTP, HyperText Transfer Protocol |
| 2085 | HU, Hungary (ISO 3166 digram; FIPS 10-4 country code) |
| 2086 | HUD,(i/a) Head-Up Display,Housing and Urban Development |
| 2087 | HUF, Hungarian forint (ISO 4217 currency code) |
| 2088 | HUHA, Head up his/her ass (Marine salute; probably a backcronym) |
| 2089 | hun, Hungarian language (ISO 639-2 code) |
| 2090 | HUN, Hungary (ISO 3166 trigram) |
| 2091 | HURD, Hird of Unix-Replacing Daemons (cf. Hird) |
| 2092 | HV, Upper Volta (ISO 3166 digram; obsolete 1984) |
| 2093 | HVAC, Heating, ventilation and air conditioning Used in architecture, business and marketing; refers to a building's entire system of heating, moving, or cooling air. |
| 2094 | HVAP, High Velocity Armour Piercing (ammunition) |
| 2095 | HVHF,High velocity human factors |
| 2096 | HVM, High Velocity Missile |
| 2097 | HVO, Upper Volta (ISO 3166 trigram; obsolete 1984) |
| 2098 | HVP, HarborView Properties,High vacuum process,Hydrolyzed vegetable protein,Human Variome Project,High Velocity Protection,H.V.P. (rapper),High Voltage Protection,High Vapor Pressure,Hub Voice Processor,High-Velocity Projectile,High-Video Pass,High-Velocity Particle |
| 2099 | HW, Hardware, High Water (nautical charts) |
| 2100 | HWM, Hardware morphing (computer graphics rendering) |
| 2101 | HX, IATA code of Hong Kong Airlines, Medical history, Hydrogen halide, Concept automobile by HUMMER |
| 2102 | HXB, The glycoprotein Tenascian C |
| 2103 | hy, Armenian language (ISO 639-1 code) |
| 2104 | hye, Armenian language (ISO 639-2 code) |
| 2105 | HYS, Harvard, Yale, Stanford (perennially named as the top three law schools in the U.S.) |
| 2106 | hz, Herero language (ISO 639-1 code) |
| 2107 | Hz, Hertz |
| 2108 | HZ, Haze (METAR Code) |
| 2109 | I, Iodine,One (in Roman numerals) |
| 2110 | ia, Interlingua language (ISO 639-1 code) |
| 2111 | IA, Iowa (postal symbol) |
| 2112 | IAAL, I Am A Lawyer |
| 2113 | IAB, International Association for Biologicals |
| 2114 | IACREOT, International Association of Clerks, Recorders, Election Officials, and Treasurers |
| 2115 | IAD, Ion Assisted Deposition |
| 2116 | IADS, Integrated Air Defence System |
| 2117 | IAEA, International Atomic Energy Agency |
| 2118 | IAF,{i} Industrial Areas Foundation |
| 2119 | IAFG, Information Assurance Focus Group |
| 2120 | IAI, International African Institute,Israel Aircraft Industries |
| 2121 | IANA, Internet Assigned Numbers Authority |
| 2122 | IANAL, I Am Not A Lawyer |
| 2123 | IAQ, Indoor air quality,Infrequently Asked Questions |
| 2124 | IAS, Image Assessment System |
| 2125 | IASIP, It's Always Sunny in Philadelphia |
| 2126 | IATA,(a/i) International Air Transport Association |
| 2127 | IATF,International Automotive Task Force |
| 2128 | IATSE,International Alliance of Theatrical Stage Employees |
| 2129 | IAU, International Association of Universities,International Astronomical Union |
| 2130 | IAUC, International Astronomical Union Circular |
| 2131 | IAW, In Accordance With |
| 2132 | IB, International Baccalaureate |
| 2133 | IBA, Important Bird Area |
| 2134 | IBD, Inflammatory Bowel Disease |
| 2135 | IBDM, Information Based Decision Making |
| 2136 | IBDS, Integrated Biological Detection System,International Business Development Specialist |
| 2137 | IBM, International Business Machines |
| 2138 | ibo, Igbo language (ISO 639-2 code) |
| 2139 | IBRD, International Bank for Reconstruction and Development (part of the World Bank) |
| 2140 | IBS, Irritable Bowel Syndrome |
| 2141 | IC, Ice Crystals (METAR Code),Iceland (FIPS 10-4 country code), Integrated Circuit,[inner circle] |
| 2142 | ICANN, Internet Corporation for Assigned Names and Numbers |
| 2143 | ICAO, International Civil Aviation Organization |
| 2144 | ICBM, Intercontinental Ballistic Missile |
| 2145 | ICBN, International Code of Botanical Nomenclature |
| 2146 | ICC, Integrated Command and Control,International Criminal Court,International Cricket Council,Interstate Commerce Commission,International Chamber of Commerce |
| 2147 | ICD, Implantable Cardioverter-Defibrillator,Initial Capabilities Document,International Classification of Diseases |
| 2148 | ICE,(i/a) In case of emergency |
| 2149 | ICES,(a/i) International Council for the Exploration of the Sea |
| 2150 | ICF, Intelligent Community Forum |
| 2151 | ICM, Improved Conventional Munition,Integrated Collection Management,International Congress of Mathematicians,Iraq Campaign Medal |
| 2152 | ICMP, Internet Control Message Protocol |
| 2153 | ICNAF, International Commission for the Northwest Atlantic Fisheries (became NAFO in 1978) |
| 2154 | ICNI, Integrated Communication, Navigation, and Identification |
| 2155 | ICO, Intermediate Circular Orbit |
| 2156 | ICP, Inductively coupled plasma,Insane Clown Posse |
| 2157 | ICPE,(a/i) International Conference on Pharmacoepidemiology, the annual conference of the International Society for Pharmacoepidemiology |
| 2158 | ICRAF, International Centre for Research in Agroforestry (a.k.a. World Agroforestry Centre since 2002) |
| 2159 | ICRISAT,(i/a) International Crops Research Institute for the Semi-Arid Tropics |
| 2160 | ICRL, Individual Component Repair List |
| 2161 | ICRS, International Celestial Reference System |
| 2162 | ICS, In-Country Support,Intelligence and Communications Systems,Interim Contractor Support |
| 2163 | ICSI, Intracytoplasmic Sperm Injection |
| 2164 | ICT, Information and communication technologies |
| 2165 | ICTH, Island Closest to Heaven/Hell Final Fantasy VIII |
| 2166 | ICV, Infantry Carrier Vehicle |
| 2167 | ICW, In Co-ordination With,Indonesia Corruption Watch,Infectious and Chemotherapeutic Waste,Insulating Concrete Wall,Integral Crystalline Waterproofing, Interactive Courseware |
| 2168 | ICYMI, In Case You Missed It |
| 2169 | ICZN, International Code of Zoological Nomenclature,International Commission on Zoological Nomenclature |
| 2170 | id, Indonesian language (ISO 639-1 code) |
| 2171 | ID- Idaho (postal symbol), Identity, Indonesia (FIPS 10-4 country code; ISO 3166 digram), Infantry Division,Intelligent Design,ID10T Error, Idiot User Error (IT help desk inside joke) |
| 2172 | IDA- U.S. Institute for Defense Analyses,International Development Association (part of the World Bank |
| 2173 | IDC, International Data Corporation |
| 2174 | IDDI, I don't do initialisms (see irony) |
| 2175 | IDE- Integrated Development Environment,Integrated Drive Electronics |
| 2176 | IDeA, Improvement and Development Agency, the former name of Local Government Improvement and Development in the United Kingdom |
| 2177 | IDEA- Individuals with Disabilities Education Act (U.S.),International Data Encryption Algorithm,International Design Excellence Awards |
| 2178 | IDF- Israel Defense Forces,Intel Development Forum,International Dairy Federation |
| 2179 | IDGAF, I don't give a fuck |
| 2180 | IDK, I don't know |
| 2181 | IDKIBTI,I don't know, I'm black, that's it |
| 2182 | IDL, Interface Definition Language |
| 2183 | IDN, Indonesia (ISO 3166 trigram) |
| 2184 | ido, Ido language (ISO 639-2 code) |
| 2185 | IDR, Indonesian rupiah (ISO 4217 currency code) |
| 2186 | ie, Interlingue language (ISO 639-1 code) |
| 2187 | IE, Indo-European languages,Internet Explorer, Ireland (ISO 3166 digram),Iced Earth |
| 2188 | IEA, International Energy Agency |
| 2189 | IEC, International Electrotechnical Commission |
| 2190 | IED, Improvised Explosive Device |
| 2191 | IELTS, International English Language Testing System |
| 2192 | IER, Information Exchange Requirement |
| 2193 | IET, Institution of Engineering and Technology |
| 2194 | IET,(ii) Initial Entry Training |
| 2195 | IETF, Internet Engineering Task Force |
| 2196 | IEW, Intelligence and Electronic Warfare |
| 2197 | IFAB, International Football Association Board |
| 2198 | IFAH, International Federation for Animal Health |
| 2199 | IFAP, International Federation of Agricultural Producers |
| 2200 | IFC, International Finance Corporation (part of the World Bank), Independent Film Channel |
| 2201 | IFF, Identification, Friend or Foe,Individually Fresh Frozen,International Flavors and Fragrances |
| 2202 | IFFN, Identification, Friend, Foe, or Neutral |
| 2203 | IFO, Identified Flying Object (see also UFO) |
| 2204 | IFOR, UN Implementation Force, Institute for Operations Research,International Fellowship of Reconciliation |
| 2205 | IFOV, Instantaneous Field of View |
| 2206 | IFPI, International Federation of Phonographic Industries |
| 2207 | IFR, Instrument Flight Rules |
| 2208 | IFRB, International Frequency Registration Board |
| 2209 | IFV, Infantry Fighting Vehicle |
| 2210 | ig, Igbo language (ISO 639-1 code) |
| 2211 | IG, Inspector General |
| 2212 | IGNOU, Indira Gandhi National Open University |
| 2213 | IGS, International Ground Station |
| 2214 | IGY, Israeli Gay Youth,International Geophysical Year |
| 2215 | IHH, Idiopathic Hypogonadotropic Hypogonadism |
| 2216 | IHO,(i/a) International Hydrographic Organization |
| 2217 | IHR, Institute for Historical Review |
| 2218 | IHSI,Institutum Historicum Societatis Iesu (Jesuit Historical Institute) |
| 2219 | ii, Sichuan Yi language (ISO 639-1 code) |
| 2220 | II, Two (in Roman numerals) |
| 2221 | IICA, Inter-American Institute for Cooperation on Agriculture |
| 2222 | IIE, Innovative Interstellar Explorer |
| 2223 | iii, Sichuan Yi language (ISO 639-2 code) |
| 2224 | III, Three (in Roman numerals) |
| 2225 | IIRC, If I Recall/Remember Correctly |
| 2226 | IISS, International Institute for Strategic Studies |
| 2227 | IIT, Illinois Institute of Technology,Indian Institutes of Technology,Indiana Institute of Technology |
| 2228 | IJN, Imperial Japanese Navy (World War II) |
| 2229 | IJWP, Interim Joint Warfare Publication |
| 2230 | ik, Inupiaq language (ISO 639-1 code) |
| 2231 | IKEA, Ingvar Kamprad (the company's founder), Elmtaryd (the farm where he was born and raised), Agunnaryd (a village and parish near the farm) |
| 2232 | iku, Inuktitut language (ISO 639-2 code) |
| 2233 | IL, Illinois (postal symbol),Israel (ISO 3166 digram) |
| 2234 | ILC, International Law Commission,International Linear Collider |
| 2235 | ILDS, Improved Landmine Detection System |
| 2236 | ile, Interlingue language (ISO 639-2 code) |
| 2237 | ILO, International Labour Organization |
| 2238 | ILRI, International Livestock Research Institute |
| 2239 | ILS, Israeli shekel (ISO 4217 currency code) |
| 2240 | ILY, IATA code for Islay Airport (Scotland), I Love You [pronounced ILL-LEE] |
| 2241 | IM- Isle of Man (FIPS 10-4 territory code), Instant Message (internet speech) |
| 2242 | IMA- Intermediate Maintenance Activity,Institute of Mathematics and Applications |
| 2243 | IMBD, International Migratory Bird Day |
| 2244 | IMDb,Internet Movie Database |
| 2245 | IME, In My Experience |
| 2246 | IMF- id music file/id's music format (audio file format),Impossible Missions Force, the protagonist organization in the Mission: Impossible media franchise,International Monetary Fund (the most common use for the initialism) |
| 2247 | IMHO, In My Humble/Honest Opinion, cf. IMO |
| 2248 | IML, International Mister Leather |
| 2249 | IMLAST, International Movement for Leisure Activities in Science and Technology,see MILSET |
| 2250 | IMNM,,Immune-mediated necrotizing myopathy a rare, but serious ADR of statins [1] |
| 2251 | IMNSHO, In My Not So Humble Opinion |
| 2252 | IMPAC, International Merchant Purchase Authorization Card |
| 2253 | IMPACT, International Medical Products Anti-Counterfeiting Taskforce |
| 2254 | IMPATT, IMPact Avalanche Transit Time diode |
| 2255 | IMPT, Institute of Maxillofacial Prosthetists and Technologists |
| 2256 | IMRO-Internal Macedonian Revolutionary Organization,Irish Music Rights Organisation |
| 2257 | IMRL, Individual Material iness List |
| 2258 | IMS- Information Management System,International Meat Secretariat,Ion Mobility Spectrometer |
| 2259 | IMSA- Illinois Mathematics and Science Academy,International Mind Sports Association,International Motor Sports Association |
| 2260 | IMsL, International Ms. Leather |
| 2261 | IMT, Integrated Management Tool |
| 2262 | IMU, International Mathematical Union |
| 2263 | In, Indium |
| 2264 | IN, India (FIPS 10-4 country code; ISO 3166 digram),Indiana (postal symbol),Infantry |
| 2265 | ina, Interlingua language (ISO 639-2 code) |
| 2266 | INA, Immigration and Nationality Act |
| 2267 | INAS, International Near-Earth Asteroid Survey |
| 2268 | INCITS, InterNational Committee for Information Technology Standards |
| 2269 | ind, Indonesian language (ISO 639-2 code) |
| 2270 | IND, India (ISO 3166 trigram) |
| 2271 | inet, the Internet |
| 2272 | INDIGO, (U.S.) INtelligence DIvision Gaming Operation |
| 2273 | INFORMS, (U.S.) Institute for Operations Research and the Management Sciences |
| 2274 | INFOSEC, Information Security |
| 2275 | INLA, Irish National Liberation Army |
| 2276 | INMARSAT, International Maritime Satellite organization |
| 2277 | INR, Indian rupee (ISO 4217 currency code) |
| 2278 | INRIA, Institut national de recherche en informatique et en automatique |
| 2279 | INS, Immigration and Naturalization Service |
| 2280 | InSAR, Interferometric synthetic aperture radar |
| 2281 | INST, Information Standards and Technology |
| 2282 | INTSUM, Intelligence Summary |
| 2283 | INTERFET, International Force for East Timor |
| 2284 | io, Ido language (ISO 639-1 code) |
| 2285 | IO, British Indian Ocean Territory (ISO 3166 digram; FIPS 10-4 territory code) |
| 2286 | IOC- Initial Operational Capability,Intergovernmental Oceanic Commission,International Olympic Committee,International Ornithological Congress |
| 2287 | IOLTA, Interest on Lawyer Trust Accounts (charitable funding mechanism, especially for legal aid) |
| 2288 | IOM- Iowa, Ohio, Michigan (soybean origin),Institute of Medicine,International Organisation for Migration,Isle of Man |
| 2289 | IONA, Islands of the North Atlantic (alternate name for Great Britain, Ireland, the Isle of Man, and related islands) |
| 2290 | IOT, British Indian Ocean Territory (ISO 3166 trigram) |
| 2291 | IP, Clipperton Island (FIPS 10-4 territory code), Initial Point,Intellectual Property,Internet Protocol |
| 2292 | IPA, India Pale Ale,International Phonetic Alphabet,Isopropyl alcohol |
| 2293 | IPB, Intelligence Preparation of the Battlefield |
| 2294 | IPCC, Intergovernmental Panel on Climate Change,Independent Police Complaints Commission |
| 2295 | ipk, Inupiaq language (ISO 639-2 code) |
| 2296 | IPL, Inferior Parietal Lobule |
| 2297 | IPO, Initial Public Offering |
| 2298 | IPR, In Progress Review,Intellectual Property Rights,Intelligence Production Requirement |
| 2299 | IPT, Integrated Product/Project Team |
| 2300 | IPTS, Institute for Prospective Technological Studies |
| 2301 | IPTV, Internet Protocol TeleVision |
| 2302 | IPW, Interrogation of Prisoners of War |
| 2303 | IQ, Intelligence Quotient, Iraq (ISO 3166 digram) |
| 2304 | IQD, Iraqi dinar (ISO 4217 currency code) |
| 2305 | Ir, Iridium |
| 2306 | IRA, Individual Retirement Account,Irish Republican Army (see also List of organisations known as the Irish Republican Army for groups claiming descent from this organisation) |
| 2307 | IRAD, Internal Research and Development |
| 2308 | IRAN,(I) Inspect and Repair As Necessary |
| 2309 | IRAS, Infrared Astronomical Satellite |
| 2310 | IRB, International Rugby Board |
| 2311 | IRBM, Intermediate Range Ballistic Missile |
| 2312 | IRC, International Red Cross,International Reply Coupon,Internet Relay Chat |
| 2313 | IREA, Intermountain Rural Electric Association |
| 2314 | IRL, Ireland (ISO 3166 trigram),Industrial Research Limited,Indy Racing League,In real life |
| 2315 | IRN, Iran (ISO 3166 trigram) |
| 2316 | IRINN,Islamic Republic of Iran News Network |
| 2317 | IRO, International Refugee Organisation |
| 2318 | IRQ, Iraq (ISO 3166 trigram) |
| 2319 | IRR, Iranian rial (ISO 4217 currency code) |
| 2320 | IRS, U.S. Internal Revenue Service |
| 2321 | IRST, Infra-red Search and Track |
| 2322 | is, Icelandic language (ISO 639-1 code) |
| 2323 | IS- Iceland (ISO 3166 digram),Israel (FIPS 10-4 country code) |
| 2324 | ISA- Individual Savings Account,Industry Standard Architecture,Instruction Set Architecture,International Seabed Authority |
| 2325 | ISAAA, International Service for the Acquisition of Agri-biotech Applications |
| 2326 | ISAF- International Sailing Federation,International Security Assistance Force |
| 2327 | ISAR, Inverse SAR (Synthetic Aperture Radar) |
| 2328 | ISB, Intermediate Staging Base |
| 2329 | ISBN, International Standard Book Number (ISO 2108) |
| 2330 | ISCCP, International Satellite Cloud Climatology Project |
| 2331 | ISCII, Indian Standard Code for Information Interchange |
| 2332 | ISDN,Integrated Services Digital Network |
| 2333 | ISEF, Intel International Science and Engineering Fair |
| 2334 | ISEN, Internet Search Environment Number |
| 2335 | ISF, Internal Security Force |
| 2336 | ISI-Indian Standards Institute, former name of the Bureau of Indian Standards,Inter-Services Intelligence (Pakistan),Islamic State of Iraq, an umbrella organization for several Iraqi insurgent groups |
| 2337 | ISIL,(i/a) Islamic State of Iraq and the Levant |
| 2338 | ISIS-(i/a) Institute for Science and International Security,Islamic State of Iraq and Syria |
| 2339 | ISK, Icelandic krona (ISO 4217 currency code) |
| 2340 | isl, Icelandic language (ISO 639-2 code) |
| 2341 | ISL, Iceland (ISO 3166 trigram) |
| 2342 | ISLN, International Standard Lawyer Number (used initially by LexisNexis Martindale-Hubbell) |
| 2343 | ISM- Industrial, scientific or medical, Interstellar medium |
| 2344 | ISMB, International Society of Matrix Biologists |
| 2345 | ISMC, Intelligent Sounding Meaningless Conversation |
| 2346 | ISOGP, Indian Society of Orthodontics for General Practitioners [2] |
| 2347 | ISP- International Standardized Profile,Internet Service Provider,Information Systems Professional |
| 2348 | ISPE,(a/i) International Society for Pharmacoepidemiology |
| 2349 | ISR- Intelligence, Surveillance and Reconnaissance, Israel (ISO 3166 trigram) |
| 2350 | ISRO, Indian Space Research Organisation |
| 2351 | ISS- International Shorebird Survey (North America),International Space Station |
| 2352 | ISSCR, International Society for Stem Cell Research |
| 2353 | ISSN, International standard serial number (ISO 3297) |
| 2354 | IST- Information System Technology,UCF Institute for Simulation and Training |
| 2355 | ISTAR, Intelligence, Surveillance, Target Acquisition, and Reconnaissance |
| 2356 | ISTC, Institute of Scientific and Technical Communications (UK) |
| 2357 | ISTS, Intel Science Talent Search |
| 2358 | ISU- Integrated Sight Unit,International Skating Union,IT[edit] |
| 2359 | it, Italian language (ISO 639-1 code) |
| 2360 | IT- InferoTemporal (neurophysiology),Information Technology, Italy (FIPS 10-4 country code; ISO 3166 digram) |
| 2361 | ita, Italian language (ISO 639-2 code) |
| 2362 | ITA, Italy (ISO 3166 trigram) |
| 2363 | ITAG, Inertial Terrain-Aided Guidance |
| 2364 | ITALY, I'll Truly Always Love You |
| 2365 | ITAS, Improved Target Acquisition Sight |
| 2366 | ITC, InferoTemporal Cortex (neurophysiology) |
| 2367 | ITCZ,(i/p) Intertropical Convergence Zone |
| 2368 | ITEC, Information Technology Exposition & Conference |
| 2369 | ITEMS, Interactive Tactical Environment Management System |
| 2370 | ITER, International Thermonuclear Experimental Reactor |
| 2371 | ITF, International Tennis Federation |
| 2372 | ITK, In The Know |
| 2373 | ITN, Independent Television News (British) |
| 2374 | ITS- Incompatible Time-sharing System,Individual Training Standards |
| 2375 | ITT, International Telephone and Telegraph (U.S.) |
| 2376 | ITTO, International Tropical Timber Organization |
| 2377 | ITU- Intent-to-Use,International Telecommunication Union (International Telegraph Union 1865-1932),IU[edit] |
| 2378 | iu, Inuktitut language (ISO 639-1 code) |
| 2379 | IUCN, International Union for the Conservation of Nature and Natural Resources (World Conservation Union) |
| 2380 | IUSS, Integrated Undersea Surveillance System,Integrated Unit Simulation System,International Union of Soil Sciences |
| 2381 | IV, Côte d'Ivoire (FIPS 10-4 country code; from Ivory Coast),Four (in Roman numerals), IntraVenous (as in intravenous drip or intravenous therapy) |
| 2382 | IVD, Internet Video Device, intra vas device |
| 2383 | Iveco, Industrial Vehicles Corporation |
| 2384 | IVF, In Vitro Fertilisation |
| 2385 | IVI, Interchangeable Virtual Instrument |
| 2386 | IVIS,(i/a) Inter-Vehicle Information System |
| 2387 | IVL, Inter-Visibility Line |
| 2388 | IVM, In Vitro [Oocyte] Maturation |
| 2389 | IVO, In Vicinity Of |
| 2390 | IW, Information Warfare |
| 2391 | IWARS, Infantry Warrior Simulation |
| 2392 | IWC, International Whaling Commission |
| 2393 | IWW, Industrial Workers of the World |
| 2394 | IX, Nine (in Roman numerals) |
| 2395 | IXT, IntraText digital library; IntraText lexical hypertext |
| 2396 | IY, Saudi-Iraqi neutral zone (FIPS 10-4 territory code; obsolete 1993) |
| 2397 | IZ, Iraq (FIPS 10-4 country code) |
| 2398 | J, Joule |
| 2399 | J1, Joint [Manpower &] Personnel Directorate |
| 2400 | J2, Joint Intelligence Directorate |
| 2401 | J2EE, Java 2 Platform, Enterprise ion |
| 2402 | J2ME, Java 2 Platform, Micro ion |
| 2403 | J2SE, Java 2 Platform, Standard ion |
| 2404 | J3, Joint Operations Directorate |
| 2405 | J4, Joint Logistics Directorate |
| 2406 | J5, Joint Strategic Plans & Policy Directorate |
| 2407 | J6, Joint Information Technology Directorate (Command, Control, Communications & Computer Systems) |
| 2408 | J7, Joint Operational Plans & Interoperability Directorate |
| 2409 | J8, Joint Force Structure, Resources, & Assessment Directorate |
| 2410 | ja, Japanese language (ISO 639-1 code) |
| 2411 | JA, Japan (FIPS 10-4 country code) |
| 2412 | JAFT, Just A Field Test |
| 2413 | JAL, Japan Airlines |
| 2414 | JALLC, Joint Analysis and Lessons Learned Centre (NATO) |
| 2415 | JAM, Jamaica (ISO 3166 trigram) |
| 2416 | JAMA, Journal of the American Medical Association |
| 2417 | JANET, Joint Academic Network |
| 2418 | JANUS, Joint Academic Network Using Satellites (UK),Joint Army Navy Uniform Simulation, Joint Army-Navy Staff,Just ANother Useless Simulation (Note: The U.S. Army Janus simulation is not an acronym) |
| 2419 | JATO, Jet-Assisted Take-Off |
| 2420 | jav, Javanese language (ISO 639-2 code) |
| 2421 | JB, Junior Branch |
| 2422 | JB, Jail Bait |
| 2423 | JBFSA, Joint Blue Force Situational Awareness |
| 2424 | JCDB, Joint Common Data Base |
| 2425 | JCDS, Joint Chiefs of the Defence Staff |
| 2426 | JCIDS, Joint Capabilities Integration and Development System |
| 2427 | JCL, Job Control Language |
| 2428 | JCP, Java Community Process |
| 2429 | JCPM, Java Child Process Manager,Jesus Christ Prison Ministry |
| 2430 | JCS, Joint Chiefs of Staff |
| 2431 | JCW, Juggalo Championship Wrestling |
| 2432 | JDBC, Java Data Base Connectivity |
| 2433 | JDCC, UK Joint Doctrine and Concepts Centre, now the Development, Concepts, and Doctrine Centre, DCDC |
| 2434 | JDEM, Joint Dark Energy Mission |
| 2435 | JDK, Java Development Kit |
| 2436 | JDL, Jewish Defense League |
| 2437 | JDM- Japanese domestic market, referring specifically to automobiles and parts,Java Data Mining,Joint design manufacturing,JE[edit] |
| 2438 | JE, Jersey (FIPS 10-4 territory code) |
| 2439 | JEB- James Ewell Brown (Stuart),John Ellis Bush |
| 2440 | JEDP, Jahwist, Elohist, Deuteronomist, Priestly (according to the documentary hypothesis, the sources of the Torah) |
| 2441 | JEE, Java Platform, Enterprise ion |
| 2442 | JEFX, Joint Expeditionary Force eXperiment |
| 2443 | JEPD- Jahwist, Elohist, Priestly, Deuteronomist,Jointly Exhaustive, Pairwise Disjoint |
| 2444 | JET, Joint European Torus |
| 2445 | JEZ, Joint Engagement Zone |
| 2446 | JFACC, Joint Force Air Component Commander |
| 2447 | JFACTSU, U.S. Joint Forward Air Control Training and Standards Unit |
| 2448 | JFC, Joint Force Commander |
| 2449 | JFK, John Fitzgerald Kennedy or the airport named after him. |
| 2450 | JFLCC, Joint Force Land Component Commander |
| 2451 | JFMCC, Joint Force Maritime Component Commander |
| 2452 | JFO, Journal of Field Ornithology |
| 2453 | JFSOCC, Joint Force Special Operations Component Commander |
| 2454 | JFTX, Joint Field Training Exercise |
| 2455 | JH, Japan Highway Public Corporation |
| 2456 | JH, Jharkhand (Indian state code) |
| 2457 | JI, Joint Implementation |
| 2458 | JIB, Joint Information Bureau |
| 2459 | JIC, Joint Intelligence Centre |
| 2460 | JINI, Java Intelligent Network Infrastructure |
| 2461 | JITC, Joint Interoperability Test Command |
| 2462 | JIVE, Joint Institute for VLBI (Very Long Baseline Interferometry) in Europe |
| 2463 | JJAP, Japanese Journal of Applied Physics |
| 2464 | JK, Jedi Knight,Just Kidding, Spanair (IATA airline designator),Jammu & Kashmir (Indian state code) |
| 2465 | JL, Japan Airlines (IATA airline designator) |
| 2466 | JLA, Justice League of America |
| 2467 | JM, Jamaica (FIPS 10-4 country code; ISO 3166 digram) |
| 2468 | JMD, Jamaican dollar (ISO 4217 currency code) |
| 2469 | JMS, Java Message Service |
| 2470 | JN, Jan Mayen Island (FIPS 10-4 territory code) |
| 2471 | JNI, Java Native Interface |
| 2472 | JNLP, Java Network Launch Protocol |
| 2473 | JO, Jordan (FIPS 10-4 country code; ISO 3166 digram) |
| 2474 | JOA,(a/i) Joint Operations Area |
| 2475 | JOD, Jordanian dinar (ISO 4217 currency code) |
| 2476 | JOPES, Joint Operations Planning and Execution System |
| 2477 | JOR, Jordan (ISO 3166 trigram) |
| 2478 | JOTS, Joint Operations Tactical System |
| 2479 | JSP, Joint Services Publication |
| 2480 | JP, Japan (ISO 3166 digram), Justice of the Peace |
| 2481 | JPL, Jet Propulsion Laboratory |
| 2482 | jpn, Japanese language (ISO 639-2 code) |
| 2483 | JPN, Japan (ISO 3166 trigram) |
| 2484 | JPOW, Joint Project Optic Windmill |
| 2485 | JPY, Japanese yen (ISO 4217 currency code) |
| 2486 | JQ, Jetstar Airways (IATA airline designator), Johnny Quick, Johnston Atoll (FIPS 10-4 territory code), Jonny Quest,Joshua Quagmire |
| 2487 | JRA, Japanese Red Army,Joint Rear Area |
| 2488 | JRDF, Joint Rapid Deployment Forces |
| 2489 | JRE, Java Runtime Environment |
| 2490 | JREF, James Randi Educational Foundation |
| 2491 | JROC, Joint Requirements Oversight Council |
| 2492 | JROCM, JROC Memorandum |
| 2493 | JRRF, Joint Rapid Reaction Force |
| 2494 | JRSAI,Journal of the Royal Society of Antiquaries of Ireland |
| 2495 | JSAP, Japan Society of Applied Physics |
| 2496 | JSCSC, Joint Services Command and Staff College |
| 2497 | JSEAD, Joint Suppression of Enemy Air Defence (see SEAD) |
| 2498 | JSF, Joint Strike Fighter |
| 2499 | JSIMS, Joint Simulation System |
| 2500 | JSOA, Joint Special Operations Area |
| 2501 | JSOTF, Joint Special Operations Task Force |
| 2502 | JSP, JavaServer Page |
| 2503 | JSR, Java Specification Request |
| 2504 | JSS, Joint Support Ship Project |
| 2505 | JT, Johnston Atoll (ISO 3166 digram; obsolete 1986), Junior Technician (RAF) |
| 2506 | JTC, Joint Training Confederation |
| 2507 | JTF, Joint Task Force |
| 2508 | JTFEX, Joint Task Force Exercise |
| 2509 | JTLS, Joint Theater Level Simulation |
| 2510 | JTMD, Joint Theatre Missile Defence |
| 2511 | JTN, Johnston Atoll (ISO 3166 trigram; obsolete 1986) |
| 2512 | JU, Juan de Nova Island (FIPS 10-4 territory code) |
| 2513 | JUGFET, JUnction Gate Field-Effect Transistor |
| 2514 | JUICE, JUpiter ICy Moon Explorer |
| 2515 | JUO, Joint Urban Operations |
| 2516 | jv, Javanese language (ISO 639-1 code) |
| 2517 | JV, Joint Venture,Junior Varsity |
| 2518 | JVM, Java Virtual Machine |
| 2519 | JW, Jehovah's Witnesses |
| 2520 | JWARS, Joint Warfare System (simulation) |
| 2521 | JWP, Joint Warfare Publication |
| 2522 | JWST, James Webb Space Telescope |
| 2523 | JY, Japanese Yen |
| 2524 | JZ, Joint Zone |
| 2525 | k, Kilo- |
| 2526 | K, Kelvin,Potassium (Latin Kalium),Tanker (aircraft designation code) |
| 2527 | K9, Canine Police Unit |
| 2528 | ka, Georgian language (ISO 639-1 code) |
| 2529 | kA, Kiloampere |
| 2530 | Ka, Kamov Design Bureau |
| 2531 | KA, Knowledge Acquisition, Karnataka (Indian state code) |
| 2532 | KAF,(i/a) Kandahar Air Field |
| 2533 | kal, Kalaallisut language (ISO 639-2 code) |
| 2534 | kan, Kannada language (ISO 639-2 code) |
| 2535 | KARNAC, Knowledge Aided Retrieval in Activity Context |
| 2536 | KARR, Knight Automated Roving Robot (Knight Rider character) |
| 2537 | kas, Kashmiri language (ISO 639-2 code) |
| 2538 | kat, Georgian language (ISO 639-2 code) |
| 2539 | KATUSA, Korean Augmentation To United States Army |
| 2540 | kau, Kanuri language (ISO 639-2 code) |
| 2541 | kaz, Kazakh language (ISO 639-2 code) |
| 2542 | KAZ, Kazakhstan (ISO 3166 trigram) |
| 2543 | KBE, Knight Commander of the Order of the British Empire |
| 2544 | KBO, Kuiper Belt Object |
| 2545 | KBVB, Koninklijke Belgische Voetbalbond (Dutch for Royal Belgian Football Association) |
| 2546 | kC, Kilocoulomb |
| 2547 | KCL, King's College London |
| 2548 | KCS, Kansas City Southern Railway (AAR reporting mark) |
| 2549 | KD, Kawasaki Disease,Kraft Dinner |
| 2550 | KE- Kenya (FIPS 10-4 country code; ISO 3166 digram), Kinetic Energy,Knowledge Engineering |
| 2551 | KEDO, Korean Peninsula Energy Development Organization |
| 2552 | KEN, Kenya (ISO 3166 trigram) |
| 2553 | KERA, Kentucky Education Reform Act (of 1990) |
| 2554 | kerma, Kinetic Energy Released in MAterial / in MAtter / per unit MAss |
| 2555 | KES- Kenyan shilling (ISO 4217 currency code), Killer Elite Squad (Japanese professional wrestling stable) |
| 2556 | KESR, Kent and East Sussex Railway. |
| 2557 | KET- Kentucky Educational Television, Key English Test,KF[edit] |
| 2558 | kF, Kilofarad |
| 2559 | KFC, Kentucky Fried Chicken |
| 2560 | KFOR, UN Kosovo Force |
| 2561 | KFUPM,King Fahd University of Petroleum & Minerals |
| 2562 | kg, Kilogram,Kongo language (ISO 639-1 code) |
| 2563 | KG, Kyrgyzstan (FIPS 10-4 country code; ISO 3166 digram) |
| 2564 | KGO,Knight of the Guelphic Order of Hanover |
| 2565 | KGS, Kyrgyz som (ISO 4217 currency code) |
| 2566 | KGZ, Kyrgyzstan (ISO 3166 trigram) |
| 2567 | kH, Kilohenry |
| 2568 | KH, Cambodia (ISO 3166 digram) |
| 2569 | khm, Khmer language (ISO 639-2 code) |
| 2570 | KHL, Kontinental Hockey League |
| 2571 | KHM, Cambodia (ISO 3166 trigram) |
| 2572 | KHR, Cambodian riel (ISO 4217 currency code) |
| 2573 | KHz, Kilohertz |
| 2574 | ki, Gikuyu language (ISO 639-1 code) |
| 2575 | Ki, Kibi |
| 2576 | KI, Kiribati (ISO 3166 digram) |
| 2577 | KIA, Killed In Action |
| 2578 | KIDS, Knowledge-based Integrated Design System |
| 2579 | kik, Gikuyu language (ISO 639-2 code), common typo for LOL |
| 2580 | kin, Kinyarwanda language (ISO 639-2 code) |
| 2581 | kir, Kyrgyz language (ISO 639-2 code) |
| 2582 | KIR, Kiribati (ISO 3166 trigram) |
| 2583 | KISS, Keep It Simple, Stupid / Keep It Short and Simple,Korean Intelligence Support System |
| 2584 | KITECH, Korean Institute of Industrial Technology |
| 2585 | KITT, Knight Industries Two Thousand,Knight Industries Three Thousand |
| 2586 | KIT,Keep In Touch |
| 2587 | kj, Kuanyama language (ISO 639-1 code) |
| 2588 | kJ, Kilojoule |
| 2589 | kk, Kazakh language (ISO 639-1 code) |
| 2590 | kK, Kilokelvin |
| 2591 | KKK, Ku Klux Klan |
| 2592 | kl, Kalaallisut language (ISO 639-1 code) |
| 2593 | kL, Kilolitre |
| 2594 | KL, Kuala Lumpur, Kerala (Indian state code) |
| 2595 | KLENOT, KLEť Observatory Near Earth and Other unusual objects observations Team and Telescope |
| 2596 | KLOC, Kilo Lines Of Code |
| 2597 | km, Khmer language (ISO 639-1 code),Kilometre |
| 2598 | KM, Comoros, Knowledge Management |
| 2599 | KMF, Comoro franc (ISO 4217 currency code) |
| 2600 | KMR, Kwajalein Missile Range |
| 2601 | kn, Kannada language (ISO 639-1 code) |
| 2602 | kN, Kilonewton |
| 2603 | KN, Democratic People's Republic of Korea (FIPS 10-4 country code),Saint Kitts and Nevis (ISO 3166 digram) |
| 2604 | KNA, Saint Kitts and Nevis (ISO 3166 trigram) |
| 2605 | KNVB, Koninklijke Nederlandse Voetbal Bond (Dutch for Royal Dutch Football Association) |
| 2606 | ko, Korean language (ISO 639-1 code) |
| 2607 | KO, Knocked Out |
| 2608 | kom, Komi language (ISO 639-2 code) |
| 2609 | kon, Kongo language (ISO 639-2 code) |
| 2610 | kor, Korean language (ISO 639-2 code) |
| 2611 | KOR, Republic of Korea (ISO 3166 trigram) |
| 2612 | KP, Kim Possible |
| 2613 | KPMG, Klynveld, Peat, Marwick, Goerdeler |
| 2614 | KPNO, Kitt Peak National Observatory |
| 2615 | KPW, North Korean won (ISO 4217 currency code) |
| 2616 | KQ, Kenya Airways (IATA airline designator),Kingman Reef (FIPS 10-4 territory code) |
| 2617 | kr, Kanuri language (ISO 639-1 code) |
| 2618 | Kr, Krypton |
| 2619 | KR, Kiribati (FIPS 10-4 country code),Republic of Korea (ISO 3166 digram) |
| 2620 | KRW, South Korean won (ISO 4217 currency code) |
| 2621 | ks- Kashmiri language (ISO 639-1 code),Kilosecond |
| 2622 | kS, Kilosiemens |
| 2623 | KS- Kansas (postal symbol),Republic of Korea (FIPS 10-4 country code) |
| 2624 | KSC, Kennedy Space Center |
| 2625 | KSI, Killed or Seriously Injured |
| 2626 | KSM- Korean Service Medal,Khalid Sheikh Mohammed |
| 2627 | KSU, Kansas State University |
| 2628 | kT, Kilotesla |
| 2629 | KT, Christmas Island (FIPS 10-4 territory code), Knight of the Order of the Thistle,Knights Templar |
| 2630 | KTS, Knight of the Tower and Sword (of Portugal) |
| 2631 | ku, Kurdish language (ISO 639-1 code) |
| 2632 | KU, Kuwait (FIPS 10-4 country code) |
| 2633 | kua, Kuanyama language (ISO 639-2 code) |
| 2634 | KUL, Katholieke Universiteit Leuven (Flemish, Catholic University of Leuven) |
| 2635 | kur, Kurdish language (ISO 639-2 code) |
| 2636 | KUW, Kuwait (UNDP country code, IOC and FIFA trigram, but not ISO 3166) |
| 2637 | kv, Komi language (ISO 639-1 code) |
| 2638 | kV, Kilovolt |
| 2639 | KV, Kosovo |
| 2640 | KVM, Keyboard, Video, Mouse switch |
| 2641 | kw, Cornish language (ISO 639-1 code) |
| 2642 | kW, Kilowatt |
| 2643 | KW, Kuwait (ISO 3166 digram) |
| 2644 | KWB,Kids' WB! |
| 2645 | KWD, Kuwaiti dinar (ISO 4217 currency code) |
| 2646 | KWT, Kuwait (ISO 3166 trigram) |
| 2647 | KX, Cayman Airways (IATA airline designator) |
| 2648 | ky, Kyrgyz language (ISO 639-1 code) |
| 2649 | KY- Cayman Islands (ISO 3166 digram),Kentucky (postal symbol) |
| 2650 | KYD, Cayman Islands dollar (ISO 4217 currency code) |
| 2651 | KZ, Kazakhstan (FIPS 10-4 country code; ISO 3166 digram) |
| 2652 | KZN, KwaZulu-Natal |
| 2653 | KZT, Kazakh tenge (ISO 4217 currency code) |
| 2654 | la, Latin language (ISO 639-1 code) |
| 2655 | La, Lanthanum |
| 2656 | LA- Laos (FIPS 10-4 country code; ISO 3166 digram),Louisiana (postal symbol), Los Angeles |
| 2657 | LAAS- Local Area Augmentation System,Los Angeles Astronomical Society |
| 2658 | LAB, Logistics Assault Base |
| 2659 | LabVIEW, Laboratory Virtual Instrumentation Engineering Workbench |
| 2660 | LACMA,(a/i) Los Angeles County Museum of Art |
| 2661 | LAD, Laser Aiming Device |
| 2662 | LADW, Local Air Defence Warning |
| 2663 | LAESI, Local Authority & Emergency Service Information |
| 2664 | LAK, Laotian kip (ISO 4217 currency code) |
| 2665 | LAMP,(multiple meanings) |
| 2666 | LAN, Local Area Network |
| 2667 | LANL, Los Alamos National Laboratory |
| 2668 | lao, Lao language (ISO 639-2 code) |
| 2669 | LAO, Laos (ISO 3166 trigram) |
| 2670 | LAPD, Los Angeles Police Department |
| 2671 | LAR- Light Armoured Reconnaissance,Logistics Assistance Representative |
| 2672 | LARC, Livermore Advanced Research Computer (cf. LLNL) |
| 2673 | LARP, Live-Action Role-Playing |
| 2674 | LAS, McCarran International Airport (Las Vegas, Nevada) |
| 2675 | Laser, Light Amplification by Stimulated Emission of Radiation (cf. Maser) |
| 2676 | lat, Latin language (ISO 639-2 code) |
| 2677 | LAT-(i/a) Lowest Astronomical Tide (nautical charts),Licensed Athletic Trainer (used in many of the United States; see www.oata.org) |
| 2678 | LATA, Local Access Transport Area |
| 2679 | LATCH, Lower Anchors and Tethers for Children (U.S. standard for attachment points for child safety seats in passenger cars) |
| 2680 | lav, Latvian language (ISO 639-2 code) |
| 2681 | LAV- Land Assault Vehicle,Light Armoured Vehicle,Lymphadenopathy-Associated Virus |
| 2682 | LAW, Light Antitank Weapon |
| 2683 | LAX- Los Angeles International Airport, The Latin American Xchange (professional wrestling),LB[edit] |
| 2684 | lb- pound (Latin librum),Luxembourgish language (ISO 639-1 code) |
| 2685 | LB, Lebanon (ISO 3166 digram) |
| 2686 | LBH- Light Battlefield Helicopter,Lyman-Birge-Hopfield bands |
| 2687 | LBJ- Lady Bird Johnson,LeBron James,Light Bulb Joke,Little Beagle Johnson (the dog owned by Lyndon and Lady Bird Johnson),Lyndon Baines Johnson |
| 2688 | LBN, Lebanon (ISO 3166 trigram) |
| 2689 | LBNL, Lawrence Berkeley National Laboratory |
| 2690 | LBP, Lebanese pound (ISO 4217 currency code) |
| 2691 | LBR, Liberia (ISO 3166 trigram) |
| 2692 | LBS, Location-Based Services |
| 2693 | lbs, pounds (plural form of lb, see above) |
| 2694 | LBT, Large Binocular Telescope |
| 2695 | LBW, Leg Before Wicket |
| 2696 | LBY, Libya (ISO 3166 trigram) |
| 2697 | LC, Line of Contact, Saint Lucia (ISO 3166 digram) |
| 2698 | LCA, Saint Lucia (ISO 3166 trigram) |
| 2699 | LCC, Land Component Commander |
| 2700 | LCCP, Light Contingency Communications Package |
| 2701 | LCD, Liquid Crystal Display |
| 2702 | LCE, Leaving Certificate Examination,Load Carrying Equipment,London Commodity Exchange |
| 2703 | LCM, Least/Lowest Common Multiple |
| 2704 | LCol, Lieutenant-Colonel (Canada, UK) |
| 2705 | LCS,League of Legends Championship Series |
| 2706 | LD- Laser Designator,Limited Deployment,Line of Departure |
| 2707 | LDA, Lateral Drift Apparatus (paratroops) |
| 2708 | LDC, Lesser Developing/Developed Country |
| 2709 | LDL, Low-Density Lipoprotein |
| 2710 | LDV, Local Defence Volunteers (British Home Guard) |
| 2711 | LDW,Lane Departure Warning (ADAS) |
| 2712 | LE, Lebanon (FIPS 10-4 country code) |
| 2713 | LEC, Local Exchange Carrier |
| 2714 | LED, Light-Emitting Diode |
| 2715 | Legs, level emotion gad speed |
| 2716 | LEGAD, Legal Advice |
| 2717 | LEMOSS, Long-Endurance MObile Submarine Simulator |
| 2718 | LEN, Large Extension Node |
| 2719 | LEO, Low Earth orbit |
| 2720 | LEP, Large Electron-Positron collider |
| 2721 | LER, Loss-Exchange Ratio |
| 2722 | LEU, Low-Enriched Uranium |
| 2723 | LF, Low Frequency |
| 2724 | LFO, Low Frequency Oscillation / Oscillator |
| 2725 | LFTR, Liquid fluoride thorium reactor |
| 2726 | lg, Luganda (ISO 639-1 code) |
| 2727 | LG, Latvia (FIPS 10-4 country code) |
| 2728 | LGB- Lesbian, Gay, Bisexual,Laser-guided bomb, self-explanatory |
| 2729 | LGBT, Lesbian, Gay, Bisexual, Transgender |
| 2730 | LGLO, Love God, Love Others |
| 2731 | LGM, Little Green Men |
| 2732 | LGS, Landsat Ground Station |
| 2733 | LH, Lithuania (FIPS 10-4 country code), Luteinising Hormone |
| 2734 | LHC, Large Hadron Collider |
| 2735 | LHS, Left Hand Side |
| 2736 | li, Limburgish language (ISO 639-1 code) |
| 2737 | Li, Lithium |
| 2738 | LI, Fifty-one (in Roman numerals), Liberia (FIPS 10-4 country code),Liechtenstein (ISO 3166 digram) |
| 2739 | LIBOR, London Interbank Offered Rate |
| 2740 | LIBS, Laser Induced Breakdown Spectroscopy |
| 2741 | LIE, Liechtenstein (ISO 3166 trigram) |
| 2742 | LIFO, Last In, First Out |
| 2743 | LIGO, Laser Interferometer Gravitational-Wave Observatory |
| 2744 | lim, Limburgish language (ISO 639-2 code) |
| 2745 | lin, Lingala language (ISO 639-2 code) |
| 2746 | LINEAR, Lincoln Near-Earth Asteroid Research |
| 2747 | LISA, Laser Interferometer Space Antenna |
| 2748 | lit, Lithuanian language (ISO 639-2 code) |
| 2749 | LITAS, Low Intensity Two Colour Approach System (aviation) |
| 2750 | LIVE, Liquid Inertial Vibration Eliminator |
| 2751 | LJ- La Jolla,Larry Johnson (both the American football and basketball players of that name),LaserJet (HP printer brand),Library Journal,Linux Journal,LiveJournal,Ljubljana,Lord Justice of Appeal, Sierra National Airlines (IATA code) |
| 2752 | LJJ, Lord Justices of Appeal |
| 2753 | LK, Sri Lanka (ISO 3166 digram) |
| 2754 | LKA, Sri Lanka (ISO 3166 trigram) |
| 2755 | LKR, Sri Lanka rupee (ISO 4217 currency code) |
| 2756 | LKR4, Linkwitz-Riley 4th order (audio crossover type) |
| 2757 | LL, Land Line (telephone),Last Log,Late Latin,Left Limit,Lex Luthor (Superman character),Light Line,Limited Liability,Linked List,Little League |
| 2758 | LLAD, Low Level Air Defence |
| 2759 | LLB, Legum Baccalaureus (Latin: Bachelor of Laws) |
| 2760 | LLC, Limited Liability Company |
| 2761 | LLGC, Llyfrgell Genedlaethol Cymru (National Library of Wales),London Lesbian and Gay Centre |
| 2762 | LLLTV, Low-Light Level Television |
| 2763 | LLNL, Lawrence Livermore National Laboratory |
| 2764 | LLP, Limited Liability Partnership |
| 2765 | LLTI, Limiting Long-Term Illness,Long Lead Time Item |
| 2766 | LLTR, Low-Level Transit Route |
| 2767 | LMAO, Laughing My Ass Off (Internet shorthand) |
| 2768 | LMFAO, Laughing My F**king Ass Off (Internet shorthand, electro-hop duo) |
| 2769 | LMB, Lick My Balls |
| 2770 | LMN,(a/i) Lifetime Movie Network |
| 2771 | LMS, London Mathematical Society,London, Midland and Scottish (Railway) |
| 2772 | LMS, Like My Status (Internet shorthand) |
| 2773 | LMV,() Light Motor Vehicle |
| 2774 | ln- Lingala language (ISO 639-1 code),Natural logarithm |
| 2775 | LNER, London and North Eastern Railway |
| 2776 | LNG, Liquefied Natural Gas |
| 2777 | LNO, Liaison Officer |
| 2778 | lo, Lao language (ISO 639-1 code) |
| 2779 | LO, Slovakia (FIPS 10-4 country code) |
| 2780 | LOA, Limit Of Advance |
| 2781 | LOC,(a/i) Level of Operational Capability,Limited Operational Capability,Lines Of Code,Lines Of Communication,see entry |
| 2782 | LOD,Limit of Detection,see Detection limit |
| 2783 | LoD, Lines of Development (UK) |
| 2784 | LOFAR, Low Frequency Analysis and Recording |
| 2785 | LOGPAC, Logistics Package |
| 2786 | LOL, Laughing Out Loud (Internet shorthand) |
| 2787 | LOMEZ, Low Altitude Missile Engagement Zone |
| 2788 | LONEOS, Lowell Observatory Near-Earth-Object Search |
| 2789 | LOOGY,(p/a) Lefty One-Out GuY, a sometimes pejorative nickname for the left-handed specialist in baseball |
| 2790 | LORTID, LOng Range Target IDentification |
| 2791 | LOS, Line Of Sight |
| 2792 | LOSAT, Line-Of-Sight Anti-Tank (missile) |
| 2793 | LOTA, Licentiate of the Orthodontic Technicians Association |
| 2794 | LOTIS, Livermore Optical Transient Imaging System |
| 2795 | LOTS, Logistics Over-The-Shore |
| 2796 | LP, Linkin Park,Linkup Point,Listening Post,Long Playing record,Louisiana Pacific (cf. LP Field) |
| 2797 | LPC, Linear Predictive Coding |
| 2798 | LPD, Landing Platform Dock (Navy hull classification),Low Probability of Detection |
| 2799 | LPG, Liquefied Petroleum Gas (cf. LNG) |
| 2800 | LPI, Low Probability of Intercept |
| 2801 | LPS, Landsat Processing System, LipoPolySaccharide |
| 2802 | LQ, Palmyra Atoll (FIPS 10-4 territory code) |
| 2803 | Lr, Lawrencium |
| 2804 | LR, Liberia (ISO 3166 digram) |
| 2805 | LRC, Logistics iness Center |
| 2806 | LRD, Liberian dollar (ISO 4217 currency code) |
| 2807 | LRF, Laser rangefinder, Low iness Forces |
| 2808 | LRGW, Long-Range Guided Weapon |
| 2809 | LRICBM, Limited Range ICBM |
| 2810 | LRIP, Low Rate Initial Production |
| 2811 | LRP, Logistics Release Point |
| 2812 | LRPE, Long-Range Planning Element |
| 2813 | LRS, Long Range Surveillance |
| 2814 | LRU, Line-Replaceable Unit |
| 2815 | LSE- Least Squares Estimate/Error,London School of Economics,London Stock Exchange |
| 2816 | LSI, Large-Scale Integration |
| 2817 | LSIF, Labour Sponsored Investment Fund |
| 2818 | LSL, Lesotho loti (ISO 4217 currency code) |
| 2819 | LSND, Liquid Scintillator Neutrino Detector |
| 2820 | LSO, Lesotho (ISO 3166 trigram) |
| 2821 | LSST, Large Synoptic Survey Telescope |
| 2822 | LSVW, Light Support Vehicle, Wheeled |
| 2823 | lt, Lithuanian language (ISO 639-1 code) |
| 2824 | Lt, Lieutenant |
| 2825 | LtC, Lieutenant-Colonel (U.S.) |
| 2826 | LT, Lesotho (FIPS 10-4 country code),Lithuania (ISO 3166 digram) |
| 2827 | LTC, Long-Term Costing |
| 2828 | Ltd, Limited |
| 2829 | LTDP, Long-Term Defence Plan |
| 2830 | LTG, Lieutenant General, Lightning (METAR Code) |
| 2831 | LTI, Linear Time-Invariant |
| 2832 | LTM,Acronym for Laughing To Myself |
| 2833 | LTL, Lithuanian litas (ISO 4217 currency code) |
| 2834 | LTP, Long-Term Potentiation |
| 2835 | LTU, Lithuania (ISO 3166 trigram) |
| 2836 | ltz, Luxembourgish language (ISO 639-2 code) |
| 2837 | lu, Tshiluba language (ISO 639-1 code) |
| 2838 | Lu, Lutetium |
| 2839 | LU, Acronym Love You |
| 2840 | LU,Loonatics Unleashed |
| 2841 | lub, Tshiluba language (ISO 639-2 code) |
| 2842 | LUCA, Last Universal Common Ancestor |
| 2843 | lug, Luganda (ISO 639-2 code) |
| 2844 | LUG, Linux User Group |
| 2845 | LULU, Locally Unwanted Land Use (urbanism) |
| 2846 | LUT, Limited User Test (ing),Local User Terminal |
| 2847 | LUVW, Light Utility Vehicle, Wheeled |
| 2848 | LUX, Luxembourg (ISO 3166 trigram) |
| 2849 | lv, Latvian language (ISO 639-1 code) |
| 2850 | LV- Las Vegas, Latvia (ISO 3166 digram), Launch Vehicle,Leading Vehicle, Leave, Left Ventricle,Level Valve,Linking Verb,Liverpool Victoria |
| 2851 | LVA, Latvia (ISO 3166 trigram) |
| 2852 | LVAD- Left Ventricular Assist Device, Low-Velocity Airdrop |
| 2853 | LVEF, Left Ventricular Ejection Fraction |
| 2854 | LVL, Latvian lats (ISO 4217 currency code) |
| 2855 | Lw, Lawrencium (obsolete 1963) |
| 2856 | LW, Land Warrior,Low Water (nautical charts) |
| 2857 | LWR, Laser warning receiver |
| 2858 | LWRC, Land Warfare Resources Corporation |
| 2859 | LWS, Land Warrior System |
| 2860 | LX, Luxembourg (amateur radio ITU prefix),Swiss International Air Lines (IATA code) |
| 2861 | LX, Electrics (theatrical term) |
| 2862 | LY, Libya (FIPS 10-4 country code; ISO 3166 digram),Lithuania (amateur radio ITU prefix) |
| 2863 | LYAO,Laugh Your Ass Off |
| 2864 | LYD, Libyan dinar (ISO 4217 currency code) |
| 2865 | LYLAS, Love You Like A Sister |
| 2866 | LZ, Bulgaria (amateur radio ITU prefix), Landing Zone |
| 2867 | m, Metre,Milli |
| 2868 | M, Mega-,One thousand (in Roman numerals) |
| 2869 | mA, Milliampere |
| 2870 | Ma, Megaannum |
| 2871 | MA- Madagascar (FIPS 10-4 country code), Marijuana Anonymous, Master of Arts,Massachusetts (postal symbol),Megaampere,Morocco (ISO 3166 digram) |
| 2872 | MAA, Mathematical Association of America |
| 2873 | MAAC, Metro Atlantic Athletic Conference |
| 2874 | MACE, Multi-Agent Computing Environment |
| 2875 | MACHO, MAssive Compact Halo Object |
| 2876 | MAD- Magnetic Anomaly Detector, Moroccan dirham (ISO 4217 currency code), Mutual Assured Destruction |
| 2877 | MADD- Mothers Against Drunk Driving,MyoAdenylate Deaminase Deficiency, Multiply-Add |
| 2878 | MAF, Maintenance Action Form |
| 2879 | MAFF, Ministry of Agriculture, Forestry and Fisheries (various countries) |
| 2880 | MAGIC, Major Atmospheric Gamma-ray Imaging Cherenkov (telescope) |
| 2881 | MAGNETAR, Metaprogrammable AGent NETwork ARchitecture |
| 2882 | MAGTF, Marine Air-Ground Task Force |
| 2883 | mah, Marshallese language (ISO 639-2 code) |
| 2884 | mal, Malayalam language (ISO 639-2 code) |
| 2885 | MALD, Miniature Air-Launched Decoy |
| 2886 | MANPADS, MAN-Portable Air Defence System |
| 2887 | MANPRINT, MANpower and PeRsonnel INTegration |
| 2888 | MAO-(i/a) Molėtų astronomijos observatorija (Moletai Astronomical Observatory), MonoAmine Oxidase |
| 2889 | MAOI, Monoamine oxidase inhibitor |
| 2890 | MAPS, Monitoring Avian Productivity and Survivorship |
| 2891 | mar, Marathi language (ISO 639-2 code) |
| 2892 | MAR, Morocco (ISO 3166 trigram) |
| 2893 | MarBEF, Marine Biodiversity and Ecosystem Functioning |
| 2894 | MARC- MAchine able Cataloging (often also defined as MAchine able Code),Mailing list ARChive,Massachusetts Animal Rights Coalition,Mid-America Regional Council |
| 2895 | MARCENT, United States Marine Forces Central Command |
| 2896 | MARFORCC, Marine Force Component Commander |
| 2897 | MARRS, Martyn Young, Alex Ayuli, Rudy Tambala, Russell Smith, and Steve Young (British electronic music act) |
| 2898 | MASAS, Monte Agliale Supernovae and Asteroid Survey |
| 2899 | Maser, Microwave Amplification by Stimulated Emission of Radiation |
| 2900 | MASH, Mobile Army Surgical Hospital |
| 2901 | MASINT, Measurement And Signature Intelligence |
| 2902 | MATREX, Modeling Architecture for Technology, Research & EXperimentation |
| 2903 | MAVS,(a/i) Mobile Artillery Vehicle System |
| 2904 | MAW, Malawi (IOC trigram, but not FIFA or ISO 3166) |
| 2905 | MB, Manitoba (postal symbol),Martinique (FIPS 10-4 territory code),Medal of Bravery (Canada) |
| 2906 | MBA, Main Battle Area,Main Belt Asteroid,Masters of Business Administration |
| 2907 | MBI, Moody Bible Institute |
| 2908 | MBBL, (U.S. Armor Center) Mounted Battlespace Battle Laboratory |
| 2909 | MBCC, Migratory Bird Conservation Commission (U.S.) |
| 2910 | MBCS, Multi-Byte Character Set |
| 2911 | MBE, Member of the Order of the British Empire, Multistate Bar Examination (U.S.) |
| 2912 | MBIDST, Member of the British Institute of Dental and Surgical Technologists |
| 2913 | MBM, Meat and Bone Meal |
| 2914 | mbsf,metres below sea floor,[1][2] a depth convention used in paleontology and oceanography |
| 2915 | MBT, Main Battle Tank |
| 2916 | MBTA, Massachusetts Bay Transportation Authority,Migratory Bird Treaty Act (U.S.) |
| 2917 | MBTI, Myers-Briggs Type Indicator |
| 2918 | mC, Millicoulomb |
| 2919 | MCA- Master of Computer Applications,Micro Channel Architecture,MultiChannel Analyzer,Music Corporation of America, the original name of the now-defunct MCA Inc. |
| 2920 | MCC- Marylebone Cricket Club,Mission Control Center,Motor Control Center,Movement Control Centre |
| 2921 | MCD- Minimal Cerebral Dysfunction,Minor civil division (U.S. Census term) |
| 2922 | MCDL, Model Composition Definition Language |
| 2923 | MCFT, Modified Compression Field Theory |
| 2924 | MCG, Melbourne Cricket Ground |
| 2925 | MCI, Microwave Communications, Inc. |
| 2926 | MCIS, Mellon Collie and the Infinite Sadness |
| 2927 | MCM, Mine Counter-Measures |
| 2928 | MCMV, Mine Counter-Measure Vessel |
| 2929 | MCNC- Microelectronics Center of North Carolina, Mixing Condensation Nucleus Counter |
| 2930 | MCP- Maintenance Collection Point,Male Chauvinist Pig |
| 2931 | MCR, My Chemical Romance |
| 2932 | MCSF, Marine Corps Security Forces |
| 2933 | MCT, Movement Control Team |
| 2934 | MCTIS, Mounted Co-operative Target Identification System |
| 2935 | MCU- Marine Corps University,Marvel Cinematic Universe,Medium close-up (camera direction in British TV scripts), Microcontroller unit, Milk clotting units,Ming Chuan University,Minimum coded unit (digital imaging),Multipoint control unit,Municipal Credit Union (New York),MD[edit] |
| 2936 | Md, Mendelevium |
| 2937 | MDA- Main Defensive Action/Area, Moldova (ISO 3166 trigram),Muscular Dystrophy Association |
| 2938 | MDF- Main distribution frame,Medium-density fiberboard |
| 2939 | MDG- Madagascar (ISO 3166 trigram), UN Millennium Development Goal |
| 2940 | MDL, Moldovan leu (ISO 4217 currency code) |
| 2941 | MDM- Michigan Dartmouth MIT telescope consortium,Master data management |
| 2942 | MDNA, Madonna's 12th studio album title (2012) |
| 2943 | MDO, Membership Driven Organisation |
| 2944 | MDP, Markov Decision Process |
| 2945 | MDT, Mountain Daylight Time (UTC-6 hours) |
| 2946 | MDV, Maldives (ISO 3166 trigram) |
| 2947 | Me, Messerschmitt |
| 2948 | ME, Maine (postal symbol), Mechanical engineer[ing],Medical examiner,Middle East, Middle East Airlines (IATA code), Memory Effect,Myalgic Encephalomyelitis |
| 2949 | MEA, Maine Educational Assessment,Middle East Airlines,Millennium Ecosystem Assessment,Minimum en route altitude,Mono-ethanol Amine,Multilateral Environmental Agreement |
| 2950 | MEAC, Mid-Eastern Athletic Conference (ME-ac) |
| 2951 | MEC- Maine Central Railroad,Manta, Ecuador (IATA location identifier), Model European Council,Mountain East Conference,Mountain Equipment Co-op |
| 2952 | MECC, Minnesota Educational Computing Consortium (later Corporation, dissolved 1999) |
| 2953 | MECCA, Milwaukee Exposition Convention Center and Arena, a former name for the sports venue now known as UW-Milwaukee Panther Arena |
| 2954 | MECO, Main engine cutoff (NASA code for point in Space Shuttle assent when three main engines are shut down prior to External Tank (ET) separation) |
| 2955 | MEDEVAC, Medical evacuation |
| 2956 | MEDLI, Mars Science Laboratory Entry, Descent, and Landing Instrumentation, Medical & Scientific Libraries of Long Island, Model for Effluent Disposal using Land Irrigation |
| 2957 | MEDS, Mission Essential Data Set |
| 2958 | MEF, U.S. Marine Expeditionary Force,Minimum essential facility,Mission essential force |
| 2959 | MEG, MagnetoEncephaloGraphy |
| 2960 | MEI, Matsushita Electric Industrial Co., Ltd. |
| 2961 | MEK, Magyar Elektronikus Konyvtar,Message encryption key,Methyl ethyl ketone, Mujahideen al-Khalq |
| 2962 | MEL, Maya Embedded Language,Michigan Electronic Library |
| 2963 | MELT, Metallic Line/Loop Test (ing) |
| 2964 | MEM, Message Exchange Mechanism, Microelectromechanical |
| 2965 | MEMS, Microelectromechanical System |
| 2966 | MEO, Medium earth orbit,Most efficient organization |
| 2967 | MER, Mars Exploration Rover |
| 2968 | MERL, Mitsubishi Electric Research Laboratories |
| 2969 | MES, Marconi Electronic Systems,Medium Edison screw |
| 2970 | MESSENGER, MErcury Surface, Space ENvironment, GEochemistry and Ranging |
| 2971 | MET, Meteorological, Middle European Time |
| 2972 | METAR, [Meteorological] Aviation Routine weather report |
| 2973 | METOC, Meteorological and Oceanographic |
| 2974 | MEU, U.S. Marine Expeditionary Unit,Maximum Expected Utility |
| 2975 | MeV, Megaelectronvolt |
| 2976 | MEV, Medical Evacuation Vehicle,Musica Elettronica Viva |
| 2977 | MEX, Mexico (ISO 3166 trigram) |
| 2978 | MEZ, Missile Engagement Zone |
| 2979 | MES, Manufacturing Execution Systems |
| 2980 | mF, Millifarad |
| 2981 | MF, Mayotte (FIPS 10-4 territory code),Megafarad |
| 2982 | MFSB, Mother, Father, Sister, Brother (1970s Philadelphia studio musicians collective) |
| 2983 | mg, Malagasy language (ISO 639-1 code),Milligram |
| 2984 | Mg, Magnesium,Megagram |
| 2985 | MG, Machine Gun, Madagascar (ISO 3166 digram), Major General, Mongolia (FIPS 10-4 country code), Morris Garage |
| 2986 | MGA, Malagasy ariary (ISO 4217 currency code) |
| 2987 | MGB, Medium Girder Bridge, Motor Gun Boat |
| 2988 | MGM, Metro Goldwyn Mayer, Montgomery, Alabama (Airport Code) |
| 2989 | MGPAM,My Gym Partner's a Monkey |
| 2990 | MGS, Mobile Gun System |
| 2991 | mh, Marshallese language (ISO 639-1 code) |
| 2992 | mH, Millihenry |
| 2993 | MH, Marshall Islands (postal symbol; ISO 3166 digram),Megahenry,Montserrat (FIPS 10-4 territory code) |
| 2994 | MHC, Major Histocompatibility Complex |
| 2995 | MHHW, Mean Higher High Water (nautical charts) |
| 2996 | MHL, Marshall Islands (ISO 3166 trigram) |
| 2997 | MHLW, Mean Higher Low Water (nautical charts) |
| 2998 | MHRA, (UK) Medicines and Healthcare products Regulatory Agency |
| 2999 | MHW, Mean High Water (nautical charts) |
| 3000 | MHWN, Mean High Water Neaps (nautical charts) |
| 3001 | MHWS, Mean High Water Springs (nautical charts) |
| 3002 | MHz, Megahertz |
| 3003 | mi, Māori language (ISO 639-1 code) |
| 3004 | Mi, Mebi |
| 3005 | MIA, Missing In Action |
| 3006 | MIAA- Maryland Interscholastic Athletic Association,Massachusetts Interscholastic Athletic Association,Michigan Intercollegiate Athletic Association,Mid-America Intercollegiate Athletics Association |
| 3007 | MIB- Men In Black,Mint In Box (Internet auction/trading listings) |
| 3008 | MICLIC, Mine Clearing Line Charge |
| 3009 | MICOM, Missile Command |
| 3010 | MID, Midway Islands (ISO 3166 trigram; obsolete 1986) |
| 3011 | MIDI, Musical Instrument Digital Interface |
| 3012 | MIDAS, Man-machine Integration Design and Analysis System |
| 3013 | MIDS, Multi-Function Information Distribution System |
| 3014 | MIFG, Shallow Fog (METAR Code) |
| 3015 | MIKE, Monitoring of Illegal Killing of Elephants |
| 3016 | MIL, Man-In-the-Loop |
| 3017 | MILC, Mirrorless interchangeable-lens camera |
| 3018 | MILF- Moro Islamic Liberation Front, Mother I'd Like to Fuck |
| 3019 | MIMAROPA, Mindoro, Marinduque, Romblon, Palawan (a region in the Philippines) |
| 3020 | MIMOSA, MIcroMeasurements Of Satellite Acceleration |
| 3021 | MIMPT, Member of the Institute of Maxillofacial Prosthetists and Technologists |
| 3022 | MIP- Multilateral Interoperability Programme,Multiple Identity Poster |
| 3023 | MIRA, MILAN Infra-Red Acquisition (thermal sight) |
| 3024 | MIRV, Multiple Independent Reentry Vehicle |
| 3025 | MIS- Management Information Systems,Museum Information System |
| 3026 | MISREP, Mission Report |
| 3027 | MISSI, Multilevel Information System Security Initiative |
| 3028 | MIT- Massachusetts Institute of Technology,methylisothiazoline,Milli Istihbarad Teskilati (Intelligence service of Turkey) |
| 3029 | MITL, Man-In-The-Loop |
| 3030 | MITS,see entry |
| 3031 | mJ, Millijoule |
| 3032 | MJ- Megajoule, Michael Jordan |
| 3033 | MJD, Modified Julian Day |
| 3034 | mk, Macedonian language (ISO 639-1 code) |
| 3035 | mK, Millikelvin |
| 3036 | mkd, Macedonian language (ISO 639-2 code) |
| 3037 | MKD- Macedonian denar (ISO 4217 currency code),Republic of Macedonia (ISO 3166 trigram) |
| 3038 | MKG, Michael Kidd-Gilchrist (American basketball player) |
| 3039 | MKS- Metre-Kilogram-Second (system of units), MKS Inc. software company |
| 3040 | MKSA, Metre-Kilogram-Second-Ampere (system of units) |
| 3041 | ml, Malayalam language (ISO 639-1 code) |
| 3042 | mL, Millilitre |
| 3043 | ML- Mali (FIPS 10-4 country code; ISO 3166 digram), Maximum Likelihood, Megalitre |
| 3044 | MLA- Martial Law Administration of Bangladesh,Master of Landscape Architecture,Medical Library Association,Member of Legislative Assembly,Modern Language Association,Mutual legal assistance treaty,Myelosis Leucemica Acuta |
| 3045 | MLB, Major League Baseball |
| 3046 | MLC, Member of the Legislative Council (in India) |
| 3047 | MLE, Maximum likelihood estimation |
| 3048 | mlg, Malagasy language (ISO 639-2 code) |
| 3049 | MLHW, Mean Lower High Water (nautical charts) |
| 3050 | MLI, Mali (ISO 3166 trigram) |
| 3051 | MLK, Martin Luther King, Jr. |
| 3052 | MLL, Major League Lacrosse |
| 3053 | MLLW, Mean Lower Low Water (nautical charts) |
| 3054 | MLP,My Little Pony |
| 3055 | MLRS, Multiple-Launch Rocket System |
| 3056 | MLS- Major League Soccer,Multiple Listing Service |
| 3057 | MLSE- Maple Leaf Sports & Entertainment (owner of several Toronto-based sports teams),Maximum likelihood sequence estimation |
| 3058 | MLSR, Missing, Lost or Stolen Report |
| 3059 | mlt, Maltese language (ISO 639-2 code) |
| 3060 | MLT, Malta (ISO 3166 trigram) |
| 3061 | MLVW, Medium Logistics Vehicle, Wheeled |
| 3062 | MLW, Mean Low Water (nautical charts) |
| 3063 | MLWN, Mean Low Water Neaps (nautical charts) |
| 3064 | MLWS, Mean Low Water Springs (nautical charts) |
| 3065 | mm, Millimetre |
| 3066 | Mm, Megametre |
| 3067 | MMA, Mixed martial arts,Moving Mechanical Assembly |
| 3068 | MMC, Machinist's Mate, Chief (USN rating), Materiel Management Centre |
| 3069 | MMCM, Machinist's Mate, Master Chief (USN rating), Magnetic Mine Counter Measure |
| 3070 | MMCS, Machinist's Mate, Senior Chief (USN rating) |
| 3071 | MMEV, Multi-Mission Effects Vehicle |
| 3072 | MMI, Man-Machine Interface |
| 3073 | MMI, McLean Meditation Institute |
| 3074 | MMIC, Mindfulness & Meditation Instructor, Certified |
| 3075 | MMIC, McLean Meditation Institute Certified |
| 3076 | MMI, Magical MonkeyZ Inc. |
| 3077 | MMK, Burmese kyat (ISO 4217 currency code) |
| 3078 | MMO, Massively Multiplayer Online (computer game) |
| 3079 | MMOR, Master of Management in Operations Research |
| 3080 | MMORPG, Massively multiplayer online role-playing game |
| 3081 | MMPR,Mighty Morphin Power Rangers |
| 3082 | MMR, Measles, Mumps and Rubella vaccine, Myanmar (ISO 3166 trigram) |
| 3083 | MMS, Multimission Modular Spacecraft |
| 3084 | MMU, Manchester Metropolitan University, Manned Manoeuvring Unit |
| 3085 | mn, Mongolian language (ISO 639-1 code) |
| 3086 | mN, Millinewton |
| 3087 | Mn, Manganese |
| 3088 | MN, Meganewton,Minnesota (postal symbol),Monaco (FIPS 10-4 country code),Mongolia (ISO 3166 digram) |
| 3089 | MNB, Multinational Brigade |
| 3090 | MND, Motor Neurone Disease, Multinational Division |
| 3091 | MNE, Montenegro (ISO 3166 trigram) |
| 3092 | MNG, Multiple-image Network Graphics, Mongolia (ISO 3166 trigram) |
| 3093 | MNMF, Multi-National Maritime Force |
| 3094 | MNP, Northern Mariana Islands (ISO 3166 trigram) |
| 3095 | MNS, Mission Needs Statement |
| 3096 | MNT, Molecular nanotechnology, Mongolian tugrik (ISO 4217 currency code) |
| 3097 | mo, Moldovan language (ISO 639-1 code) |
| 3098 | Mo, Molybdenum |
| 3099 | MOA,Museum of Art (Brigham Young University) |
| 3100 | MOAB, Massive Ordnance Air Blast (official),Mother Of All Bombs (slang) |
| 3101 | MOB, Man Over Board,Marching Owl Band,Movable Object Block |
| 3102 | MOC, Macedonian Orthodox Church,Measure Of Capability,Mission Operations Centre,My Own Creation (Lego) |
| 3103 | MOCAS, Mechanization Of Contract Administration Services |
| 3104 | MoD, Ministry of Defence (United Kingdom) and various other countries |
| 3105 | MOD, Magneto-optical disc,Masters of Deception,Minimum Object Distance,Multiple Organ Dysfunction |
| 3106 | modem, Modulator-Demodulator |
| 3107 | Moe, Marvel of entertainment |
| 3108 | MOE, Measure Of Effectiveness |
| 3109 | MOF,(a/i) Ministry of Finance (Japan) |
| 3110 | MOFA,(a/i) Ministry of Foreign Affairs (Japan) |
| 3111 | MOH,(a/i) Medal of Honor,Music On Hold |
| 3112 | MOID, Minimum Orbital Intersection Distance |
| 3113 | MOJWA, Movement for Oneness and Jihad in West Africa |
| 3114 | mol, Moldovan language (ISO 639-2 code),mole (unit) |
| 3115 | MOLO, Mobile Other Licensed Operator (UK) |
| 3116 | MoM, Multiple of the median |
| 3117 | MOM, Message Oriented Middleware |
| 3118 | MOM, Master's Degree in Oriental medicine |
| 3119 | MoMA, Museum of Modern Art (NYC) |
| 3120 | mon, Mongolian language (ISO 639-2 code) |
| 3121 | MOND, Modified Newtonian Dynamics |
| 3122 | MOO, Measure Of Outcome |
| 3123 | MOP, Macau pataca (ISO 4217 currency code), Measure Of Performance |
| 3124 | MOPE, Ministry of Population and Environment (Nepal),Most Oppressed People Ever (politics) |
| 3125 | MOPP,(i/a) Mission-Oriented Protective Posture |
| 3126 | MORP, Meteorite Observation and Recovery Project |
| 3127 | MOSFET, Metal-Oxide-Semiconductor Field-Effect Transistor |
| 3128 | MOSS, MObile Submarine Simulator, Moving Object Support System |
| 3129 | MOT, Ministry of Transport (UK) |
| 3130 | MOTA, Member of the Orthodontic Technicians Association |
| 3131 | MOTESS, Moving Object and Transient Event Search System |
| 3132 | MOTO, Mail Order / Telephone Order,Master of the obvious |
| 3133 | MOU, Memorandum Of Understanding |
| 3134 | MOVES, Modeling, Virtual Environments, and Simulation Institute |
| 3135 | MOW, Maintenance of way (also MW) |
| 3136 | MOZ, Mozambique (ISO 3166 trigram) |
| 3137 | mPa, Millipascal |
| 3138 | MPa, Megapascal |
| 3139 | MPA, Maritime Patrol Aircraft,Master of Public Administration |
| 3140 | MPAA, Motion Picture Association of America |
| 3141 | MPC, Minor Planet Center,Minor Planet Circular |
| 3142 | MPEC, Minor Planet Electronic Circular |
| 3143 | MPEG, Motion Pictures (Coding) Experts Group |
| 3144 | MPEV, Multi-Purpose Engineering Vehicle |
| 3145 | MPF, Maritime Prepositioning Force |
| 3146 | MPFC, Medial PreFrontal Cortex |
| 3147 | MPG, Miles Per Gallon |
| 3148 | MPMC, Medial PreMotor Cortex |
| 3149 | MPSI, Member of the Pharmaceutical Society of Ireland |
| 3150 | MPSoC, MultiProcessor System-on-Chip |
| 3151 | MPSRON, Maritime Propositioning Ship Squadron |
| 3152 | MQ, Martinique (ISO 3166 digram),Midway Islands (FIPS 10-4 territory code) |
| 3153 | mr, Marathi language (ISO 639-1 code) |
| 3154 | MR, Mauritania (FIPS 10-4 country code; ISO 3166 digram) |
| 3155 | MRAV, Multi-Role Armoured Vehicle |
| 3156 | MRBM, Medium Range Ballistic Missile |
| 3157 | MRC, Maintenance Requirements Card |
| 3158 | MRD, Motorized Rifle Division |
| 3159 | MRGW, Medium-Range Guided Weapon |
| 3160 | mri, Māori language (ISO 639-2 code) |
| 3161 | MRI, Magnetic Resonance Imaging |
| 3162 | MRL, Multiple Rocket Launcher |
| 3163 | MRO- Maintenance, Repair and Operating,Mars Reconnaissance Orbiter, Mauritanian ouguiya (ISO 4217 currency code) |
| 3164 | MRPharmS, Member of the Royal Pharmaceutical Society (Great Britain) |
| 3165 | MRR- Maximum Rock and Roll,Minimum-Risk Route,My Restaurant Rules |
| 3166 | MRS, Magnetic Resonance Spectroscopy |
| 3167 | MRSA, Methicillin-resistant Staphylococcus aureus |
| 3168 | MRT- Mass Rapid Transit — used as either an official or unofficial name for metro systems in Singapore, Kaoshiung, Bangkok, Taipei, Chennai, and Delhi, Mauritania (ISO 3166 trigram) |
| 3169 | MRTFB, U.S. Major Range and Test Facility Base |
| 3170 | ms- Malay language (ISO 639-1 code),Millisecond |
| 3171 | mS, Millisiemens |
| 3172 | Ms, Megasecond |
| 3173 | msa, Malay language (ISO 639-2 code) |
| 3174 | MSB- Main Support Battalion,Most Significant Bit (or Byte) |
| 3175 | MSD, Minimum Safe Distance |
| 3176 | MSDB, Multi Source Data Base |
| 3177 | MSE, Multiple Subscriber Element |
| 3178 | MSG- MonoSodium Glutamate,Madison Square Garden (either the 1879, 1890, 1925, or current versions of the venue) |
| 3179 | MSH- Medium Support Helicopter,Mount Saint Helens |
| 3180 | MSI- Micro-Star International, Multispectral imagery |
| 3181 | MSIE- Microsoft Internet Explorer,Master of Science in Industrial Engineering |
| 3182 | MSL- Mars Science Laboratory,Mean Sea Level, Missile |
| 3183 | MSLP, Mean Sea Level Pressure |
| 3184 | MSM- Mainstream media, Men who have sex with men,Mount St Mary's School |
| 3185 | MSN- Microsoft Network,Master of Science in Nursing |
| 3186 | MSNBC, Microsoft National Broadcasting Company Cable news channel (see also msnbc.com) |
| 3187 | MSO, Multiple System Operator |
| 3188 | MSPA- Migrant and Seasonal worker Protection Act, MS Paint Adventures |
| 3189 | MSPB, Merit Systems Protection Board |
| 3190 | MSR- Main Supply Route,Module Service Record, Montserrat (ISO 3166 trigram), Motor Schlepp Regulung,Mountain Safety Research (outdoor supplies manufacturer) |
| 3191 | MSSA, Methicillin-susceptible Staphylococcus aureus |
| 3192 | MST- Madison Symmetric Torus,Mountain Standard Time (UTC-7 hours),MST3K or MST3k, Mystery Science Theater 3000 |
| 3193 | MSU- Michigan State University,Montana State University,Mountain State University,Lomonosov Moscow State University (Russia, a.k.a. MGU),MT[edit] |
| 3194 | mt, Maltese language (ISO 639-1 code) |
| 3195 | mT, Millitesla |
| 3196 | Mt, Meitnerium |
| 3197 | MTA- Metropolitan Transportation Authority (Boston) (now Massachusetts Bay Transportation Authority),Metropolitan Transportation Authority (New York) |
| 3198 | MTBF, Mean time between failures |
| 3199 | MtF, Male-to-female transsexual |
| 3200 | MTF- Magnetized target fusion,Medical Treatment Facility,Message Text Format,Modulation transfer function (optics) |
| 3201 | MTG, Magic: The Gathering |
| 3202 | MTL- Maltese lira (ISO 4217 currency code), Mean Tide Level (nautical charts)* MTM, Methods-Time Measurement |
| 3203 | MTP- Maritime Tactical Publication,Materiel Transfer Plan,Mission Training Plan |
| 3204 | MTQ, Martinique (ISO 3166 trigram) |
| 3205 | MTS- Maintenance Training System,Manitoba Telecom Services,Michigan Terminal/Timesharing System,Movement Tracking System,Multichannel television sound,Multi-Technical Services |
| 3206 | MTT, Methylthiazol tetrazolium (assay) |
| 3207 | MTV- MainosTeleVisio (Finnish commercial TV company),Music TeleVision |
| 3208 | MTVL, Mobile Tracked Vehicle, Light |
| 3209 | MTWS, MAGTF Tactical Warfare System |
| 3210 | MU, Mauritius (ISO 3166 digram),Oman (FIPS 10-4 country code; from Muscat) |
| 3211 | MUR, Mauritius rupee (ISO 4217 currency code) |
| 3212 | MUS, Mauritius (ISO 3166 trigram) |
| 3213 | mV, Millivolt |
| 3214 | MV, Maldives (FIPS 10-4 country code; ISO 3166 digram),Megavolt, Motor Vehicle,Motor Vessel |
| 3215 | MVC, Missouri Valley Conference |
| 3216 | MVFC, Missouri Valley Football Conference |
| 3217 | MVNO, Mobile virtual network operator |
| 3218 | MVR, Maldivian rufiyaa (ISO 4217 currency code) |
| 3219 | mW, Milliwatt |
| 3220 | MW- Maintenance of way (also MOW), Malawi (ISO 3166 digram), Medium Wave (radio), Megawatt, Mountain West (Conference) (formal initialism since July 2011) |
| 3221 | MWESH, Machismo Wizards Extended SHelter (operating system) |
| 3222 | MWI, Malawi (ISO 3166 trigram) |
| 3223 | MWK, Malawian kwacha (ISO 4217 currency code) |
| 3224 | MWOA, Mount Wilson Observatory Association |
| 3225 | MWR, Morale, Welfare, and Recreation |
| 3226 | MWTB, Mounted Warfare Test Bed |
| 3227 | MX, Mail Exchange, Mexico (FIPS 10-4 country code; ISO 3166 digram), Missile eXperimental |
| 3228 | MXN, Mexican peso (ISO 4217 currency code) |
| 3229 | my, Burmese language (ISO 639-1 code) |
| 3230 | MY, Malaysia (FIPS 10-4 country code; ISO 3166 digram) |
| 3231 | mya, Burmese language (ISO 639-2 code), million years ago |
| 3232 | MYOB, Mind Your Own Business |
| 3233 | MYR, Malaysian ringgit (ISO 4217 currency code) |
| 3234 | MYS, Malaysia (ISO 3166 trigram) |
| 3235 | MYT, Mayotte (ISO 3166 trigram) |
| 3236 | MZ, Mach-Zehnder (interferometer), Magnetic Azimuth, Move, Zig (Zero Wing), Mozambique (FIPS 10-4 country code; ISO 3166 digram) |
| 3237 | MZN, Mozambique metical (ISO 4217 currency code) |
| 3238 | n, Nano |
| 3239 | N, Newton,Nitrogen,North |
| 3240 | N3F, National Fantasy Fan Federation |
| 3241 | na, Nauruan language (ISO 639-1 code) |
| 3242 | nA, Nanoampere |
| 3243 | Na, Sodium (Latin Natrium) |
| 3244 | NA, Namibia (ISO 3166 digram), Narcotics Anonymous, National Archives,Negative Acknowledge |
| 3245 | NAA, N-Acetylaspartate |
| 3246 | NAAD, North American Air Defense |
| 3247 | NAAFI, Navy, Army and Air Force Institute (UK), No Ambition And Fuckall Interest (RSA army slang) |
| 3248 | NAAK, Mark I NAAK, Nerve Agent Antidote Kit |
| 3249 | NAAQS, National Ambient Air Quality Standards |
| 3250 | NAAWS, NATO Anti-Air Warfare System |
| 3251 | NAC,(i/a) National Agency Check,U.S. Naval Avionics Center,U.S. Navy Advanced Concepts,North Atlantic Council,Northern Area Command |
| 3252 | NACA, (U.S.) National Advisory Committee for Aeronautics (1915-1958, became NASA) |
| 3253 | NACC, North Atlantic Cooperation Council |
| 3254 | NACISA, NATO Communications and Information Systems Agency |
| 3255 | NACMA, NATO Air Command and Control System Management Agency |
| 3256 | NACRA, North America Caribbean Rugby Association (more specifically rugby union) |
| 3257 | NAD, Namibian dollar (ISO 4217 currency code) |
| 3258 | NAEC, U.S. Naval Air Engineering Center |
| 3259 | NAF, NATO Architecture Framework, Naval Air Facility |
| 3260 | NAFLD, NonAlcoholic Fatty Liver Disease |
| 3261 | NAFO, Northwest Atlantic Fisheries Organization |
| 3262 | NAFERA, Native American Free Exercise of Religion Act |
| 3263 | NAFTA, North American Free Trade Agreement |
| 3264 | NAGPRA, Native American Graves Protection and Repatriation Act |
| 3265 | NAI, Named Area of Interest, Network Access Identifier |
| 3266 | NAICS, North American Industry Classification System |
| 3267 | NAIL, Neurotics Anonymous |
| 3268 | NAILS, National Airspace Integrated Logistics System |
| 3269 | NAIRU, Non Accelerating Inflation Rate of Unemployment |
| 3270 | NAK, Negative Acknowledge |
| 3271 | NAM, Namibia (ISO 3166 trigram) |
| 3272 | NAMBLA, North American Man-Boy Love Association |
| 3273 | NAMRL, Naval Aerospace Medical Research Laboratory |
| 3274 | NaN, Not A Number (computing) |
| 3275 | NAO, UK National Audit Office |
| 3276 | NAPS, Navy Acquisition Procedures Supplement |
| 3277 | NARA, (U.S.) National Archives and Records Administration |
| 3278 | NARAL, National Abortion Rights Action League |
| 3279 | NARDAC, Naval Regional Data Automation Center |
| 3280 | NARDIC, U.S. Navy Acquisition Research and Development Information Center |
| 3281 | NARPV, National Association for Remotely Piloted Vehicles |
| 3282 | NAS, National Academy of Sciences,National Air Space,National Audubon Society,Naval Air Station,New Attack Submarine |
| 3283 | NASA, National Aeronautics and Space Administration |
| 3284 | NASCAR, National Association for Stock Car Auto Racing |
| 3285 | NASDAQ, National Association of Securities Dealers Automated Quotations |
| 3286 | NASED, National Association of State Election Directors [1][2] |
| 3287 | NASH, Non-Alcoholic Steatohepatitis |
| 3288 | NASP, National Aerospace Plane |
| 3289 | NASS, National Association of Secretaries of State [3] |
| 3290 | NatGeo, National Geographic |
| 3291 | NATO, National Association of Theatre Owners,North Atlantic Treaty Organisation |
| 3292 | nau, Nauruan language (ISO 639-2 code) |
| 3293 | NaUKMA, National University of Kyiv-Mohyla Academy |
| 3294 | nav, Navajo language (ISO 639-2 code) |
| 3295 | NAV, Navigation[al] |
| 3296 | NAVCAMS, Naval Communications Area Master Station |
| 3297 | NAVCC, National Audio-Visual Conservation Center |
| 3298 | NAVCENT, Naval Forces U.S. Central Command |
| 3299 | NAVDAC, Naval Data Automation Command |
| 3300 | NAVEUR, Naval Forces U.S. European Command |
| 3301 | NAVFE, U.S. Naval Forces, Far East |
| 3302 | NAVFOR, Naval Force |
| 3303 | NAVMACS, Naval Modular Automatic Communication Subsystem |
| 3304 | NAVNET, Navy Network |
| 3305 | NAVS, Non-Cooperative Airborne Vector Scoring |
| 3306 | NAVSAT, Navigation Satellite |
| 3307 | NAVSPACECOM, U.S. Navy Space Command |
| 3308 | NAVSPASUR, U.S. Naval Space Surveillance System |
| 3309 | NAVSTAR, Navigation Satellite Timing And Ranging |
| 3310 | NAVTACNET, Navy Tactical Network |
| 3311 | NAWC, U.S. Naval Air Warfare Center |
| 3312 | nb, Norwegian Bokmål language (ISO 639-1 code) |
| 3313 | Nb, Niobium |
| 3314 | NBA, National Basketball Association |
| 3315 | NBC, National Broadcasting Corporation,Nuclear, Biological, and Chemical |
| 3316 | NBCRS, NBC (Nuclear, Biological, and Chemical) Reconnaissance System |
| 3317 | NBIC, Nanotechnology, Biotechnology, Information Technology, Cognitive Science |
| 3318 | nbl, Southern Ndebele language (ISO 639-2 code) |
| 3319 | NBL, National Basketball League (Australia) |
| 3320 | NBT, Nitroblue tetrazolium (assay) |
| 3321 | nC, Nanocoulomb |
| 3322 | NC- Network Computer, New Caledonia (ISO 3166 digram), Node Centre,Non-Consensual,Normally Closed, North Carolina (postal symbol) |
| 3323 | NCA, National Command Authority |
| 3324 | NCAR, U.S. National Center for Atmospheric Research |
| 3325 | NCB, National Codification Bureau |
| 3326 | NCCAM, U.S. National Center for Complementary and Alternative Medicine |
| 3327 | NCCUSL, National Conference of Commissioners on Uniform State Laws (U.S.) |
| 3328 | NCDDR, U.S. National Center for the Dissemination of Disability Research |
| 3329 | NCES- U.S. National Center for Education Statistics,Net-Centric Enterprise Services |
| 3330 | NCI, U.S. National Cancer Institute |
| 3331 | NCIS- National Criminal Intelligence Service (British),Naval Criminal Investigative Service (U.S. Navy; see also NCIS, a U.S. TV series based on this unit) |
| 3332 | NCL, New Caledonia (ISO 3166 trigram) |
| 3333 | NCLR, National Council of La Raza |
| 3334 | NCMO, No Commitment Make Out |
| 3335 | NCND- Non Circumvention & Non Disclosure, Neither Confirm Nor Deny, New Concept New Design |
| 3336 | NCO, Non-Commissioned Officer |
| 3337 | NCP, Net Contracted Purchases |
| 3338 | NCR, National Cash Register Co. |
| 3339 | NCTR, Non-Co-operative Target Recognition |
| 3340 | NCW, Network Centric Warfare |
| 3341 | nd, Northern Ndebele language (ISO 639-1 code) |
| 3342 | Nd, Neodymium |
| 3343 | ND- Non-Disclosure, North Dakota (postal symbol) |
| 3344 | NDAA, U.S. National Defense Authorization Act |
| 3345 | NDBP, Non-Departmental Public Body (Scotland) |
| 3346 | NDCC, New Directions Counseling Center (Concord, California) |
| 3347 | nde, Northern Ndebele language (ISO 639-2 code) |
| 3348 | ndo, Ndonga language (ISO 639-2 code) |
| 3349 | NDP, New Democratic Party (Canada) |
| 3350 | NDS,Nintendo DS |
| 3351 | NDU, National Defense University (Washington, DC) |
| 3352 | ne, Nepali language (ISO 639-1 code) |
| 3353 | Ne, Neon |
| 3354 | NE- Nebraska (postal symbol),Niger (ISO 3166 digram), North-East |
| 3355 | NEA- National Education Association (U.S. labor union),Near-Earth Asteroid,Nuclear Energy Agency (OECD) |
| 3356 | NEAT-Near-Earth Asteroid Tracking,,National Emergency Access Target (Au Health) |
| 3357 | NED, Netherlands (IOC and FIFA trigram, but not ISO 3166) |
| 3358 | NECTEC, National Electronics and Computer Technology Center (Thailand) |
| 3359 | NEI, National Eye Institute,Not Enough Information,Nuclear Energy Institute |
| 3360 | NEMS, National Energy Modeling System (USDOE-EIA) |
| 3361 | nep, Nepali language (ISO 639-2 code) |
| 3362 | NEPA, National Environmental Policy Act |
| 3363 | NER, Niger (ISO 3166 trigram) |
| 3364 | NERICA, New Rice for Africa |
| 3365 | NESDIS, National Environmental Satellite, Data and Information Service |
| 3366 | NESP, NSA/CSS Enterprise Standards Program |
| 3367 | NET, National Educational Television |
| 3368 | NETCU, (UK) National Extremism Tactical Co-ordination Unit |
| 3369 | NETL, (US) National Energy Technology Laboratory |
| 3370 | NETWARS, Network Warfare Simulation |
| 3371 | NEWS- Navy Electronic Warfare Simulator,North, East, West, South |
| 3372 | NEX, Navy EXchange |
| 3373 | nF, Nanofarad |
| 3374 | NF, Norfolk Island (ISO 3166 digram) |
| 3375 | NFA- (U.S.) National Firearms Act (often used to refer to the guns and accessories regulated under this law),No-Fire Area |
| 3376 | NFC- National Football Conference,Near field communication |
| 3377 | NFER, National Foundation for Educational Research |
| 3378 | NFG, No Fucking Good |
| 3379 | NFHS, National Federation of State High School Associations |
| 3380 | NFI, Not F****** Interested |
| 3381 | NFK, Norfolk Island (ISO 3166 trigram) |
| 3382 | NFL- National Football League,No-Fire Line |
| 3383 | Nfld, Newfoundland |
| 3384 | NFPA, National Fluid Power Association (United States) |
| 3385 | NFT, No Further Text |
| 3386 | ng, Nanogram,Ndonga language (ISO 639-1 code) |
| 3387 | NG- Natural Gas,Next Generation, Niger (FIPS 10-4 country code),Nigeria (ISO 3166 digram) |
| 3388 | NGA- National Geospatial-Intelligence Agency, Nigeria (ISO 3166 trigram) |
| 3389 | NGH,Northern General Hospital |
| 3390 | NGATS, New Generation Army Targetry System |
| 3391 | NGN, Nigerian naira (ISO 4217 currency code) |
| 3392 | NGO, non-governmental organization |
| 3393 | NGR, Nigeria (IOC trigram, but not ISO 3166 or FIFA) |
| 3394 | NGS, Naval Gunfire Support |
| 3395 | nH, Nanohenry |
| 3396 | NH, New Hampshire (postal symbol),New Hebrides (ISO 3166 digram; obsolete 1980),Vanuatu (FIPS 10-4 country code; from New Hebrides) |
| 3397 | NHANES, National Health and Nutrition Examination Survey |
| 3398 | NHB, New Hebrides (ISO 3166 trigram; obsolete 1980) |
| 3399 | NHB, No Holds Barred radio (Link) |
| 3400 | NHL, National Hockey League |
| 3401 | NHO, Næringslivets Hovedorganisasjon (Confederation of Norwegian Enterprises, a Norwegian employers' organisation) |
| 3402 | NHRA, National Hot Rod Association |
| 3403 | NHS, National Health Service (UK) |
| 3404 | Ni, Nickel |
| 3405 | NI- Nicaragua (ISO 3166 digram),Nigeria (FIPS 10-4 country code) |
| 3406 | NIAAA, U.S. National Institute on Alcohol Abuse and Alcoholism |
| 3407 | NIAID, National Institute of Allergies and Infectious Disease |
| 3408 | NIAG, NATO Industrial Advisory Group |
| 3409 | NIAMD, National Institute of Arthritis and Musculoskeletal Diseases |
| 3410 | NIB, New In Box (Internet auction/trading listings) |
| 3411 | NIBP, Non-invasive blood pressure monitor |
| 3412 | NIC- Network Interface Card, Nicaragua (ISO 3166 trigram) |
| 3413 | NicA, Nicotine Anonymous |
| 3414 | NICAP, National Investigations Committee on Aerial Phenomena |
| 3415 | NICE, UK. National Institute for Health and Clinical Excellence |
| 3416 | NICHD,National Institute of Child Health and Human Development [4] |
| 3417 | NICP, National Inventory Control Point |
| 3418 | NIDDK, National Institute of Diabetes and Digestive and Kidney Diseases |
| 3419 | NIDRR, National Institute on Disability Research and Rehabilitation |
| 3420 | NIEHS, National Institute of Environmental Health Sciences |
| 3421 | NIG, Niger (IOC and FIFA trigram, but not ISO 3166) |
| 3422 | NIH- National Institutes of Health,Not Invented Here |
| 3423 | NIIN, National Item Identification Number |
| 3424 | NIMA, National Imagery and Mapping Agency (became NGA) |
| 3425 | NIMBY, Not In My Back Yard (See NOME) |
| 3426 | NIMG, Not In My Generation |
| 3427 | NIMH- National Institute of Medical Herbalists,National Institute of Mental Health |
| 3428 | NIN, Nine Inch Nails (band) |
| 3429 | NIO, Nicaraguayan cordoba oro (ISO 4217 currency code) |
| 3430 | NIPR, National Institute of Polar Research (Japan) |
| 3431 | NIR, Northern Ireland (FIFA trigram; not eligible for an ISO 3166 or IOC trigram) |
| 3432 | NISAC, U.S. National Infrastructure Simulation and Analysis Center |
| 3433 | NISCAP, NSA Information System Certification and Accreditation Program |
| 3434 | NISER, National Institute of Science Education and Research |
| 3435 | NIST,(a/i) National Institute of Standards and Technology |
| 3436 | NIT- National Invitation Tournament (U.S. college basketball), National Institutes of Technology (India) |
| 3437 | NITFS, National Imagery Transmission Format Standard |
| 3438 | NIU, Niue (ISO 3166 trigram) |
| 3439 | nJ, Nanojoule |
| 3440 | NJ, New Jersey (postal symbol) |
| 3441 | NJHS, National Junior Honor Society |
| 3442 | NJPW, New Japan Pro Wrestling |
| 3443 | nK, Nanokelvin |
| 3444 | NKA,No Known Allergies |
| 3445 | nl, Dutch language (ISO 639-1 code) |
| 3446 | nL, Nanolitre |
| 3447 | NL- Netherlands (ISO 3166 and FIPS 10-4 country code digram),Newfoundland and Labrador (postal symbol) |
| 3448 | NLB, Non-Linear Battlefield |
| 3449 | nld, Dutch language (ISO 639-2 code) |
| 3450 | NLD, Netherlands (ISO 3166 trigram) |
| 3451 | NLF, National Liberation Front (disambiguation) |
| 3452 | NLL, National Lacrosse League |
| 3453 | NLP- Natural Language Processing,Neuro-Linguistic Programming (pseudoscience) |
| 3454 | NLW, Non-Lethal Weapon |
| 3455 | nm, Nanometre |
| 3456 | NM, New Mexico (postal symbol) |
| 3457 | NMCI, Navy Marine Corps Intranet |
| 3458 | NMCS, Not Mission Capable Supply (SM&R code) |
| 3459 | NMD, U.S. National Missile Defense |
| 3460 | NMN, No middle name |
| 3461 | NMSG, NATO Modelling and Simulation Group |
| 3462 | NMR, Nuclear Magnetic Resonance |
| 3463 | NMHNFG, Not Made Here, No Fucking Good |
| 3464 | nn, Norwegian Nynorsk language (ISO 639-1 code) |
| 3465 | nN, Nanonewton |
| 3466 | NNE, North North-East |
| 3467 | nno, Norwegian Nynorsk language (ISO 639-2 code) |
| 3468 | NNSA, U.S. National Nuclear Security Administration |
| 3469 | NNW, North North-West |
| 3470 | no, Norwegian language (ISO 639-1 code) |
| 3471 | No, Nobelium |
| 3472 | NO- Nitric Oxide, Normally Open, Norway (ISO 3166 and FIPS 10-4 country code digram) |
| 3473 | NOAA, U.S. National Oceanic and Atmospheric Administration |
| 3474 | NOAF, Norwegian Air Force |
| 3475 | NOAO, National Optical Astronomy Observatory |
| 3476 | nob, Norwegian Bokmål language (ISO 639-2 code) |
| 3477 | NOC, UK. National Oceanography Centre |
| 3478 | NODEF, NATO Oceanographic Data Exchange Format |
| 3479 | NOK, Norwegian krone (ISO 4217 currency code) |
| 3480 | NOLA, New Orleans, Louisiana (LA is the official postal code for Louisiana) |
| 3481 | NOGI, New Orleans Grande Isle (award for diving) |
| 3482 | NOLF, Navy OutLying Field |
| 3483 | NOME,Not on Mars Either |
| 3484 | NoMBO, Non-mine, Mine-like Bottom Object |
| 3485 | NOME,Not on Mars Either (see NIMBY) |
| 3486 | NOPA, National Office Products Alliance,National Office Products Association |
| 3487 | nor, Norwegian language (ISO 639-2 code) |
| 3488 | NOR, Norway (ISO 3166 trigram) |
| 3489 | NORAD, North American Aerospace Defense Command |
| 3490 | NORCECA, North, Central America and Caribbean Volleyball Confederation |
| 3491 | NORELPREF,No religious preference |
| 3492 | NORTHAG, Northern Army Group |
| 3493 | NOS- Network Operating System,New Old Stock (Internet auction/trading listings),Nitric Oxide Synthase (enzyme) |
| 3494 | NOSA, NATO OSI Security Architecture |
| 3495 | NOTAFLOF, No One Turned Away For Lack Of Funds |
| 3496 | NOTAM, Notice to Airmen |
| 3497 | NOW, National Organization for Women |
| 3498 | Np, Neap tide (nautical charts), Neptunium |
| 3499 | NP, National Permit,A permit in India for trucks so they can go anywhere in the nation |
| 3500 | NP, Nepal (ISO 3166 and FIPS 10-4 country code digram) |
| 3501 | NPB, Nippon Professional Baseball |
| 3502 | NPC, National Postgraduate Committee,National Provincial Championship (New Zealand rugby competition, now defunct),Navigation Planning Chart,Non-Player Character (role-playing games) |
| 3503 | NPCS, Non-Passenger Coaching stock (in Railways) |
| 3504 | NPD, Nationaldemokratische Partei Deutschlands (German) |
| 3505 | NPDI, New Product Development and Introduction |
| 3506 | NPG, Needline/Network Participation Group |
| 3507 | NPH, Normal Pressure Hydrocephalus |
| 3508 | NPL, National Priorities List, Nepal (ISO 3166 trigram) |
| 3509 | NPOV, Neutral Point Of View |
| 3510 | NPR, National Public Radio, Nepalese rupee (ISO 4217 currency code) |
| 3511 | NQ, Dronning Maud Land (ISO 3166 digram; obsolete 1983) |
| 3512 | NQOCD, Not Quite Our Class, Dear (or Darling). (Upper-class English slang) |
| 3513 | NPO,nothing by mouth |
| 3514 | nr, Southern Ndebele language (ISO 639-1 code) |
| 3515 | NR, Nauru (ISO 3166 and FIPS 10-4 country code digram) |
| 3516 | NRA, National Rifle Association |
| 3517 | NRAO, National Radio Astronomy Observatory |
| 3518 | NRC, National Research Council (U.S.),Nuclear Regulatory Commission (U.S.) |
| 3519 | NRDC, (U.S.) Natural Resources Defense Council |
| 3520 | NREL, U.S. National Renewable Energy Laboratory |
| 3521 | NRK, Norsk Rikskringkasting (Norwegian Broadcasting Corporation) |
| 3522 | NRMP, National Resident Matching Program (U.S. medicine) |
| 3523 | NRO, U.S. National Reconnaissance Office |
| 3524 | NRT, Near Real Time |
| 3525 | NRTA, National Rat Terrier Association,National Retail Tenants Association,National Retired Teachers Association,Northwest Regional Transmission Association |
| 3526 | NRU, Nauru (ISO 3166 trigram) |
| 3527 | ns, Nanosecond |
| 3528 | nS, Nanosiemens |
| 3529 | NS- Norfolk Southern Railway (AAR reporting mark),Nova Scotia (postal symbol),Suriname (FIPS 10-4 country code) |
| 3530 | NSA- U.S. National Security Agency,Naval Support Activity,No Strings Attached |
| 3531 | NSABB, National Science Advisory Board for Biosecurity |
| 3532 | NSAID, Non-Steroidal Anti-Inflammatory Drug |
| 3533 | NSB, Norges Statsbaner (Norwegian State Railways) |
| 3534 | NSC,National Security Council |
| 3535 | NSDL, National Science Digital Library (US) |
| 3536 | NSG, National System for Geospatial-Intelligence |
| 3537 | NSN, National Stock Number |
| 3538 | NSNA, National Student Nurses' Association |
| 3539 | NSO, National Standardization Office (ABCA) |
| 3540 | NSS, (U.S.) Naval Simulation System |
| 3541 | NST, (UK) Nimrod Software Team |
| 3542 | NSTAC, National Security Telecommunications Advisory Committee |
| 3543 | NSW, New South Wales (postal symbol) |
| 3544 | nT, Nanotesla |
| 3545 | NT- National Trust (UK), Saudi-Iraqi neutral zone (ISO 3166 digram; obsolete 1993), New Technology (Windows NT), Northern Territory (Australia) (postal symbol),Northwest Territories (Canada) (postal symbol) |
| 3546 | NTC- National Training Center,Negative Temperature Coefficient (thermistor) |
| 3547 | NTDS, Naval Tactical Data System |
| 3548 | NTP, Network Time Protocol |
| 3549 | NTR, Network Time Reference |
| 3550 | NTRA, National Thoroughbred Racing Association |
| 3551 | NTSB, National Transportation Safety Board |
| 3552 | NTSC, National Television Standards Committee (colloquially, Never Twice the Same Color) |
| 3553 | NTV, Non-Tactical Vehicle |
| 3554 | NTY, (Internet Abbreviations:) Not Tested Yet; (Alternatively) No Thank You |
| 3555 | NTZ, Iraq-Saudi Arabia Neutral Zone (ISO 3166 trigram; obsolete 1993) |
| 3556 | NU- Nicaragua (FIPS 10-4 country code),Niue (ISO 3166 digram),Nunavut (postal symbol) |
| 3557 | NUL- Null character (ASCII code of control character),National Urban League |
| 3558 | NUTS, Nuclear Utilization Target Selection |
| 3559 | NUWC, U.S. Naval Undersea Warfare Center |
| 3560 | nv, Navajo language (ISO 639-1 code) |
| 3561 | nV, Nanovolt |
| 3562 | NVEOL, Night Vision and Electro-Optics Laboratory |
| 3563 | NVESD, CERDEC Night Vision and Electronic Sensors Directorate, Fort Belvoir, Virginia |
| 3564 | NVG, Night Vision Goggles |
| 3565 | NVL, Night Vision Laboratory |
| 3566 | nW, Nanowatt |
| 3567 | NW, North-West |
| 3568 | NW, Nuclear Weapon |
| 3569 | NWA, National Wrestling Alliance |
| 3570 | NWF, National Wildlife Federation |
| 3571 | NWFZ, Nuclear-Weapon-Free Zone |
| 3572 | NWHN, U.S. National Women's Health Network |
| 3573 | nWo, New World Order (see article for explanation of idiosyncratic capitalization) |
| 3574 | NWOAHM, New Wave of American Heavy Metal |
| 3575 | NWOBHM, New Wave of British Heavy Metal (sometimes pronounced /n.ˈwɒbm/ as if it were an acronym) |
| 3576 | NWRA, National Wildlife Rehabilitators Association |
| 3577 | NWSL, National Women's Soccer League (U.S.) |
| 3578 | NWT, North-West Territories |
| 3579 | NXA, 21st arcade game in the Pump It Up series |
| 3580 | NXD, Native XML |
| 3581 | NXE, New Xbox Experience |
| 3582 | NXG, New Cross Gate station |
| 3583 | NXL, National XBall League |
| 3584 | NXN, Nike Cross Nationals |
| 3585 | ny, Chichewa language (ISO 639-1 code) |
| 3586 | NY, New York (postal symbol) |
| 3587 | nya, Chichewa language (ISO 639-2 code) |
| 3588 | NYHA, New York Heart Association |
| 3589 | NYO, National Youth Orchestra of Great Britain |
| 3590 | NYRA, National Youth Rights Association, New York Racing Association (horse racing) |
| 3591 | NYSE, New York Stock Exchange |
| 3592 | NZ, New Zealand (ISO 3166 and FIPS 10-4 country code digram) |
| 3593 | NZC, New Zealand Cricket |
| 3594 | NZD, New Zealand dollar (ISO 4217 currency code) |
| 3595 | NZL, New Zealand (ISO 3166 trigram) |
| 3596 | NzL,Noze looan (online/event listings) |
| 3597 | NZOSS, New Zealand Open Source Society |
| 3598 | NZRU, New Zealand Rugby Union |
| 3599 | O, Oberst,Observer,Obstacle,Octal,Officer,Official,Oh,Operational,Operator,Oprah (magazine),Outstanding, Oxygen |
| 3600 | OA, Operational Analysis, Overeaters Anonymous |
| 3601 | OAC, On Approved Credit |
| 3602 | OAP,Old Age Pensioner (UK) |
| 3603 | OAS, Organization of American States |
| 3604 | OARSI, Osteoarthritis Research Society International |
| 3605 | OASIS, Objects and Agents for Information Systems and Simulation,Organization for the Advancement of Structured Information Standards |
| 3606 | OASIS, Ontario Agencies Supporting Individuals with Special Needs |
| 3607 | OASIS, Ontario Association of Sewage Industry Services |
| 3608 | OASP, Operational Analysis Support Paper/Plan |
| 3609 | OAU, Organization for African Unity |
| 3610 | OB, Obedience,Obligation,Obligatory,Obsolete,Obstetrics, Ocean Beach (California),Off Break (cricket),Old Bryanstonian,Order of Battle,Outlet Box (electrical), Overbought (stock market), Oversight Board |
| 3611 | OBE, Officer of the Order of the British Empire |
| 3612 | OBS, Observation/Observer,Obsolete,Obstacle, Off Balance Sheet,Optical Burst Switching (IEEE),Organic Brain Syndrome,Organization(al) Breakdown Structure |
| 3613 | OBSS, Off Board Sensor Systems,Ordo Byantinus Sancti Sepulchri (Byzantine Order of the Holy Sepulchre),Orbiter Boom Sensor System (space shuttle),Origins Billion Star Survey |
| 3614 | OBX, Outer Banks (North Carolina) |
| 3615 | oc, Occitan language (ISO 639-1 code) |
| 3616 | OC, Officer Commanding |
| 3617 | OCA, Observatoire de la Côte d'Azur,Offensive Counter-Air |
| 3618 | OCD, Obsessive-Compulsive Disorder |
| 3619 | OCFS, Oracle Cluster File System |
| 3620 | OCFS2, Oracle Cluster File System Release 2 |
| 3621 | oci, Occitan language (ISO 639-2 code) |
| 3622 | OCMCC, [2] Orchard County MCC |
| 3623 | OCN, Oncology Certified Nurse |
| 3624 | OCO, Oort Cloud Object |
| 3625 | OCOKA, Observation, Cover and concealment, Obstacles, Key terrain, and Avenues of approach (mnemonic) |
| 3626 | OCR, Optical Character Recognition |
| 3627 | OCS,see entry |
| 3628 | OD- Old Dragon,Ordnance Datum (nautical charts), Overdose |
| 3629 | ODAS, OCA-DLR Asteroid Survey |
| 3630 | ODB- Ol' Dirty Bastard (rapper), One Dirty B*tch/Broad/Babe (professional wrestler), Operational Data Base, Original David Baker (professional poker player; used to distinguish from another professional poker player of the same name), Oxford Dictionary of Byzantium |
| 3631 | ODBC, Open DataBase Connectivity |
| 3632 | ODI- Office for Disability Issues (UK government agency),One Day International (cricket),Open Data-Link Interface,Oracle Data Integrator,Overseas Development Institute (UK think tank),OE[edit] |
| 3633 | OEA, (U.S.) Office of Economic Adjustment |
| 3634 | OED, Oxford English Dictionary |
| 3635 | OECD, Organisation for Economic Co-operation and Development (international) |
| 3636 | OEG, Operation Exposure Guidance |
| 3637 | OEIS, On-Line Encyclopedia of Integer Sequences |
| 3638 | OEM, Original Equipment Manufacturer |
| 3639 | OFA, Occipital Face Area |
| 3640 | OFDA, U.S Agency for International Development's Office of Foreign Disaster Assistance |
| 3641 | OGC, Open Geospatial Consortium |
| 3642 | OGD, Other Government Department |
| 3643 | OGO, Other Government Organization |
| 3644 | OGX,OUARGLA,a petroleum state in the south of Algeria |
| 3645 | OH, Ohio (postal symbol) |
| 3646 | OHC, OverHead-Cam engine |
| 3647 | OHHLA, Original Hip-Hop Lyrics Archive |
| 3648 | OHIP, Ontario Health Insurance Plan |
| 3649 | OHMS, On Her (or His) Majesty's Service (also written: O.H.M.S.) |
| 3650 | OHP, Observatoire de Haute-Provence |
| 3651 | OHSS, Ovarian Hyperstimulation Syndrome |
| 3652 | OIC, Officer In Charge |
| 3653 | OIF, Operation Iraqi Freedom |
| 3654 | OIOC, Oriental & India Office Collections (in the British Library) |
| 3655 | oj, Anishinaabe language (Ojibwa) (ISO 639-1 code) |
| 3656 | OJ, Orange Juice,O.J. Simpson |
| 3657 | oji, Anishinaabe language (Ojibwa) (ISO 639-2 code) |
| 3658 | OJT,On-the-Job Training |
| 3659 | OKC, Oklahoma City |
| 3660 | OLED, Organic Light-Emitting Diode |
| 3661 | OLS, Operational Linescan System |
| 3662 | om, Oromo language (ISO 639-1 code) |
| 3663 | OM, Oman (ISO 3166 digram),Olympique de Marseille (French football club) |
| 3664 | OMA, Open Mobile Alliance,Operations & Maintenance, Army |
| 3665 | OMB, U.S. Office of Management and Budget,Ontario Municipal Board, Order of Mapungubwe in Bronze |
| 3666 | OMD, Orchestral Manoeuvres in the Dark (1980s pop group) |
| 3667 | OME, Osaka Mercantile Exchange |
| 3668 | OMFG, Oh My Fucking God |
| 3669 | OMG, Oh My God or Or My Gosh |
| 3670 | OMN, Oman (ISO 3166 trigram) |
| 3671 | OMNCS, U.S. Office of the Manager for the National Communications System |
| 3672 | OMP, Order of Mapungubwe in Platinum |
| 3673 | OMR, Omani rial (ISO 4217 currency code) |
| 3674 | OMS, Order of Mapungubwe in Silver |
| 3675 | OMT, Object Model Template |
| 3676 | OMW, On My Way, Oh My Word |
| 3677 | ON, Ontario (postal symbol) |
| 3678 | Onna,Oniong, Nnung Ndem, and Awa, a Local Government Area in Nigeria |
| 3679 | ONC, Orthopaedic Nurse Certified |
| 3680 | ONG, Orthodontic National Group |
| 3681 | ONI, (U.S.) Office of Naval Intelligence |
| 3682 | ONS, Operational Needs Statement |
| 3683 | OO, Object Oriented,Over & Out |
| 3684 | OOO, Out Of the Office |
| 3685 | OOAD, Object Oriented Analysis and Design |
| 3686 | OOBE, Out-of-body experience |
| 3687 | OOCL, Orient Overseas Container Line |
| 3688 | OODA, Observation, Orientation, Decision, Action loop (a.k.a. Boyd's Loop) |
| 3689 | OOMF, One Of My Followers |
| 3690 | OOP, Object-Oriented Programming,Out Of Print |
| 3691 | OOS, Occupational Overuse Syndrome,OneSAF Objective System,Open Operating System,Out Of Service |
| 3692 | OOTW, Operations Other Than War |
| 3693 | OP- Observation Point/Post,Ocean Pacific (surfwear and swimwear brand),Original Poster (internet),Order Point, in inventory management; the inventory state at which more items should be ordered. Often expressed as a part of OP/OQ (when quantity OP is reached, order OQ new items),Overpowered, often used to refer to fictional characters (e.g. Superman) or game mechanics (e.g. the Black Lotus in Magic: the Gathering) that are considered disproportionately strong |
| 3694 | OPA, Other Procurement, Army |
| 3695 | OPAC, Online Public Access Catalogue |
| 3696 | OPCON, Operational control |
| 3697 | OPCW, Organisation for the Prohibition of Chemical Weapons |
| 3698 | OPEC, Organization of the Petroleum Exporting Countries |
| 3699 | OPFOR, Opposing force |
| 3700 | OPI- Office of Primary Interest,Open Prepress Interface |
| 3701 | OPINTEL, Operational Intelligence |
| 3702 | OPLAN, Operation plan (also OpPlan) |
| 3703 | OPORD, Operation order |
| 3704 | OPP- Ontario Provincial Police,Operational Planning Process,Other People's Property/Pussy/Penis (song) |
| 3705 | OPS- On-base plus slugging (baseball statistics), Operations |
| 3706 | OPSEC- Operations security,Open Platform for Security |
| 3707 | OPSI- Overwhelming post splenectomy infection,UK Office of Public Sector Information |
| 3708 | OPTAR, Operational target |
| 3709 | OPV, Offshore Patrol Vessel |
| 3710 | OQ, Order Quantity, in inventory management; the quantity of new items to be ordered. Often expressed as a part of OP/OQ (when quantity OP is reached, order OQ new items) |
| 3711 | or, Oriya language (ISO 639-1 code) |
| 3712 | OR, Operating Room (surgery),Operational/Operations Research, Oregon (postal symbol),overreciprocation,when the leader of an inner circle friendship contacts a friend more than is wanted or reasonable |
| 3713 | ORAU,(a/i) Oak Ridge Associated Universities |
| 3714 | ORB,(a/i) Object Request Broker |
| 3715 | ORBAT, Order of Battle |
| 3716 | ORD, O'Hare International Airport in Chicago, Illinois (IATA Airport Code ORD) |
| 3717 | ORD, Office of Research and Development,Operational Requirements Document |
| 3718 | ORF, Operational iness Float |
| 3719 | ori, Oriya language (ISO 639-2 code) |
| 3720 | ORISE, Oak Ridge Institute for Science and Education |
| 3721 | orm, Oromo language (ISO 639-2 code) |
| 3722 | ORNL, Oak Ridge National Laboratory |
| 3723 | ORR, Oak Ridge Reservation (U.S. DOE),Office of Rail Regulation (UK government),Office of Refugee Resettlement,(CIA) Office of Research and Reports,Operational iness Rate,Operational iness Review |
| 3724 | ORSA,Oxacillin-resistant Staphylococcus aureus,Operations Research Society of America |
| 3725 | OS, Operating System |
| 3726 | os, Ossetic language (ISO 639-1 code) |
| 3727 | Os, Osmium |
| 3728 | OSA, Order of St. Augustine |
| 3729 | OSCE, Organisation for Security and Cooperation in Europe |
| 3730 | OSD, U.S. Office of the Secretary of Defense, On-screen Display |
| 3731 | OSDL, Open Source Development Labs |
| 3732 | OSE, Own Separate Entrance |
| 3733 | OSERS, U.S. Department of Education Office of Special Education and Rehabilitative Services |
| 3734 | OSETI, Optical SETI also Optical SETI |
| 3735 | OSHA, Occupational Safety and Health Administration |
| 3736 | OSI, Office of Strategic Influence,Ontario Swine Improvement,Open Source Initiative,Open Systems Interconnection |
| 3737 | OSIA, (U.S.) On-Site Inspection Agency |
| 3738 | OSL, Open Source License,Optically Stimulated Luminescence,Orbiting Solar Laboratory |
| 3739 | OSIRIS- Optical, Spectroscopic, and Infrared Remote Imaging System (astronomical system on the Rosetta spacecraft),Optical System for Imaging and low Resolution Integrated Spectroscopy (astronomical system on the land-based Gran Telescopio Canarias) |
| 3740 | OSM, One Saturday Morning |
| 3741 | OSOTPBOIAS, One Sec, On The Phone, Be Off In A Sec |
| 3742 | OSPA, Operations Security Professional's Association site of OSPA |
| 3743 | OSPA, Oregon School Psychologists Association [3] |
| 3744 | OSRH, Oružane Snage Republike Hrvatske (en: Armed forces of the Republic of Croatia) |
| 3745 | oss, Ossetic language (ISO 639-2 code) |
| 3746 | OSS, Office of Strategic Services (1942-1945, forerunner of CIA) |
| 3747 | OSU, Ohio State University,Oklahoma State University |
| 3748 | OTA, Office of Technology Assessment,(a/i) Orthodontic Technicians Association |
| 3749 | OTAC, Orthodontic Technicians Association Conference, Orthodontic Technicians Association Council |
| 3750 | OTB, Off The Ball, Offtrack Betting, OneSAF Testbed (a descendant of ModSAF) |
| 3751 | OTC, Over-The-Counter (drugs) |
| 3752 | OTD, Off the derech (referring to an Orthodox Jew who has stopped practicing the tenets of his or her faith) |
| 3753 | OTEA, (U.S. Army) Operational Test Evaluation Agency |
| 3754 | OTI, Office of Transition Initiatives (United States Agency for International Development) |
| 3755 | OTOH, On The Other Hand |
| 3756 | OTS,Off the scale, sexually untouchable except for a lot of money. |
| 3757 | OTSBH, Over The Shoulder Boulder Holder |
| 3758 | OTW, On The Way |
| 3759 | OTYBL, Over To You Blue Leader |
| 3760 | OTYRL, Over To You Red Leader |
| 3761 | OU, University of Oklahoma |
| 3762 | OVC, Overcast (METAR Code), Ohio Valley Conference |
| 3763 | OVV, Optically Visually Violent, or Optically Violently Variable,a type of quasar |
| 3764 | OW, Old Wykehamist |
| 3765 | OWN, Oprah Winfrey Network |
| 3766 | OX, IATA code for Orient Thai Airlines |
| 3767 | OXC, Optical cross-connect |
| 3768 | OXF, IATA code for London Oxford Airport |
| 3769 | OXM, Official Xbox Magazine |
| 3770 | OXR, IATA code for Oxnard Airport |
| 3771 | OXT, Oxytocin |
| 3772 | OZ,(?) Australia |
| 3773 | p, pico |
| 3774 | P, Peta,Phosphorus |
| 3775 | P2P, Peer-to-peer (networking) |
| 3776 | pa, Punjabi language (ISO 639-1 code) |
| 3777 | pA, picoampere |
| 3778 | Pa- pascal,Protactinium |
| 3779 | PA-(a/i) Pamela Anderson, Panama (ISO 3166 digram),Paraguay (FIPS 10-4 country code), Partial Agonist, Pennsylvania (postal symbol),petampere, PolyAmide (Nylon),Prince Albert piercing,Public Address (vocal amplification system),Public Affairs,PA 6, Nylon 6 (PolyAmide) (similarly for PA 11, 12, 46, 66, 610) |
| 3780 | PAA, Position Area for Artillery |
| 3781 | PAB, Panamanian balboa (ISO 4217 currency code) |
| 3782 | PABX, Private Automated Branch eXchange (company phone system) |
| 3783 | PAC- Pan Africanist Congress, Partial Solar Calibrator,Patriot Advanced Capabilities,Political action committee,(a/i) Primary Auditory Cortex |
| 3784 | PACOM, (U.S.) Pacific Command |
| 3785 | PADD- Personal Access Display Device (as seen in the Star Trek franchise),Petroleum Administration for Defense Districts, used for data collection in the U.S. petroleum industry |
| 3786 | PADI, Professional Association of Diving Instructors |
| 3787 | PAEK, PolyArylEtherKetone |
| 3788 | PAFC, Plymouth Argyle Football Club |
| 3789 | PAH, Polycyclic aromatic hydrocarbon |
| 3790 | PAHO, Pan American Health Organization |
| 3791 | PAI- PolyAmide Imide,Pre-Approval Inspection (pharma) |
| 3792 | PAK, Pakistan (ISO 3166 trigram) |
| 3793 | Pakistan, Punjab, Afghan states, Kashmir, sIndh, baluchiSTAN |
| 3794 | PAL- Phase Alternating Line (TV standard), Philippine Airlines |
| 3795 | PAM,(a/i) Precision Attack Missile |
| 3796 | Pamida, Patrick, Michael, and David, sons of the department store chain's co-founder Jim Witherspoon |
| 3797 | PAMELA- Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics, Pedestrian Accessibility and Movement Environment Laboratory |
| 3798 | pan, Punjabi language (ISO 639-2 code) |
| 3799 | PANS, Pretty Advanced/Awesome Network Services (cf. POTS) |
| 3800 | PAPI, Precision Approach Path Indicator (aviation) |
| 3801 | PAR, Paraguay (IOC and FIFA trigram, but not ISO 3166) |
| 3802 | PARC, Palo Alto Research Center |
| 3803 | PAROS, Prevention of an Arms Race in Outer Space (treaty) |
| 3804 | PARP, (NATO Partnership for Peace) Planning And Review Process |
| 3805 | PARWIG, Power Augmented Ram Wing In Ground (aeroplane wing shape) |
| 3806 | PAS,See entry |
| 3807 | PASA, PolyAmide, Semi-Aromatic (Nylon) |
| 3808 | PASGT, Personnel Armor System, Ground Troops |
| 3809 | PASR, Personnel Accounting and Strength Reporting |
| 3810 | PATH, Port Authority Trans-Hudson |
| 3811 | PAWS- Phased Array Warning System,Progressive Animal Welfare Society |
| 3812 | PAYD, Pay As You Drive |
| 3813 | PAYE, Pay As You Earn |
| 3814 | Pb, Lead (Latin Plumbum) |
| 3815 | PB, PolyButylene |
| 3816 | PBA- Philippine Basketball Association,Professional Bowlers Association |
| 3817 | PBB, PolyBrominated Biphenyl |
| 3818 | PBCK, Problem Between Chair and Keyboard (computer help desk in-joke) |
| 3819 | PBD, PolyButaDiene |
| 3820 | PBDE, PolyBrominated Diphenyl Ether |
| 3821 | PBI, PolyBenzImidazole |
| 3822 | PBN, PolyButylene Naphthalate |
| 3823 | PBOH, Please Become Old History |
| 3824 | PBR- Pabst Blue Ribbon (beer brand),Professional Bull Riders |
| 3825 | PBS- Pharmaceutical Benefits Scheme (Australia),Public Broadcasting Service (U.S.),Public Broadcasting Services (Malta) |
| 3826 | PBRT,may stand for: Physically Based Raytracing, an open source software rendering system for physically correct image synthesis. |
| 3827 | PBT, PolyButylene Terephthalate |
| 3828 | PBX, Private Branch eXchange (company phone system) |
| 3829 | pC, picocoulomb |
| 3830 | PCAS, Planet-Crossing Asteroid Survey |
| 3831 | PCB,see entry |
| 3832 | PCC- NATO Partnership Coordination Cell,Posterior Cingulate Cortex,Pre-Command Course,Presidents Conference Committee |
| 3833 | PCCB, Porsche Ceramic Composite Brake |
| 3834 | PCCIP, President's Commission on Critical Infrastructure Protection |
| 3835 | PCE, PerChlorEthylene |
| 3836 | PCI- U.S. Pacific Islands Trust Territory (ISO 3166 trigram; obsolete 1986), Peripheral Component Interconnect (computer bus) |
| 3837 | PCIe, Peripheral Component Interconnect Express (computer bus) |
| 3838 | PCL, Passive Coherent Location |
| 3839 | PCMCIA, Personal Computer Memory Card International Association (People Can't Memorise Computer-Industry Acronyms) |
| 3840 | PCN, Pitcairn Islands (ISO 3166 trigram) |
| 3841 | PCP- phencyclidine,Pneumocystis jiroveci pneumonia (formerly Pneumocystis carinii), Probabilistically Checkable Proof |
| 3842 | PCPI,Physician Consortium for Performance Improvement (AMA) |
| 3843 | PCR, Polymerase chain reaction |
| 3844 | PCSSD, Pulaski County Special School District |
| 3845 | PCT- Pacific Crest Trail,Patent Cooperation Treaty |
| 3846 | PCTE- Portable Common Tool Environment, Punjab College of Technical Education |
| 3847 | PCZ, Panama Canal Zone (ISO 3166 trigram; obsolete 1980) |
| 3848 | Pd, Palladium |
| 3849 | PD, per diem (Latin: (calculated) by the day),Point of Departure,Police Department,Postal District,Potential Difference,Principal Deputy,Public Domain,Privatdozent |
| 3850 | PD, Product Director—Example: CERDEC Product Director C4ISR and Network Modernization |
| 3851 | PDA, Personal Digital Assistant,Predicted Drift Angle,Public Display of Affection,Push-Down Automaton |
| 3852 | PDD, Past Due Date,Presidential Decision Directive |
| 3853 | PDF, Panama[nian] Defense Forces (abolished 1990),Portable Document Format,Principal Direction of Fire |
| 3854 | PDG, President Director General,Product Development Group |
| 3855 | PDL, Pure Dumb Luck (Texan punk band) |
| 3856 | PDN, Pull-Down Network |
| 3857 | PDP, Programmable Data Processor,Performance Development Plan |
| 3858 | PDQ, Pre-Defined Queries (Siebel packages),Pretty Damn Quick |
| 3859 | PDRY, People's Democratic Republic of Yemen (obsolete since 1990) |
| 3860 | PDT, Pacific Daylight [Saving] Time (UTC-7 hours) |
| 3861 | PDU, Police Dog Unit,Power Distribution Unit,Protocol Data Unit |
| 3862 | PE,Professional Engineer |
| 3863 | PE, Ice Pellets (old style METAR Code),Peru (ISO 3166 and FIPS 10-4 country code digram), Physical Education,Premature Ejaculation, Prince Edward Island (postal code),Price to Earning ratio (used for equity shares),Plant Extract |
| 3864 | PEBCAC, Problem Exists Between Chair and Computer (IT help desk in-joke) |
| 3865 | PEBKAC, Problem Exists Between Keyboard and Chair (ditto) |
| 3866 | PEEK, PolyEtherEtherKetone |
| 3867 | PEET, Partnerships for Enhancing Expertise in Taxonomy |
| 3868 | PEI, Prince Edward Island,PolyEtherImide |
| 3869 | PEK, PolyEtherKetone |
| 3870 | PEN- Peruvian sol (ISO 4217 currency code), Poets, Essayists and Novelists, the original meaning of the initialism of the organization now known as PEN International,PolyEthylene Naphthalate |
| 3871 | PEPFAR, President's Emergency Plan For AIDS Relief |
| 3872 | PER, Peru (ISO 3166 trigram) |
| 3873 | perl, usually lower case Practical Extraction and Report Language |
| 3874 | PES, PolyEtherSulfone |
| 3875 | PEST, UK Public Engagement with Science and Technology |
| 3876 | PET,(a/i) Personal Electronic Transactor,Pierre Elliott Trudeau,Positron Emission Tomography (as in PET scan),PolyEthylene Terephthalate (plastic), Preliminary English Test |
| 3877 | PETA,(a/i) pentaerythritol triacrylate,People Eating Tasty Animals,People for the Ethical Treatment of Animals |
| 3878 | PETE, PolyEthyleneTErephthalate |
| 3879 | PETP, PolyEthyleneTerePhthalate |
| 3880 | pF, picofarad |
| 3881 | PF- French Polynesia (ISO 3166 digram),petafarad, Phenol Formaldehyde (resin),Power forward, a player position in Australian rules football, basketball, and ice hockey |
| 3882 | PFD, Permanent Fund Dividend = personal flotation device |
| 3883 | PFE, Permanent Forest Estate |
| 3884 | PFO, Pissed, Fell Over (medical diagnosis in-joke) |
| 3885 | PfP, Partnership for Peace |
| 3886 | pg, picogram |
| 3887 | Pg, petagram |
| 3888 | PG - |
| 3889 | PGCE, Postgraduate Certificate in Education |
| 3890 | PGD, Pre-implantation Genetic Diagnosis |
| 3891 | PGENI, Pharmaco-Genetics for Every Nation Initiative |
| 3892 | PGH, Pre-implantation Genetic Haplotyping |
| 3893 | PGK, Papua New Guinea kina (ISO 4217 currency code) |
| 3894 | PGM, Precision-Guided Munition |
| 3895 | PGP, Pretty Good Privacy |
| 3896 | pH, parts of hydrogen (acidity/alkalinity index),picohenry |
| 3897 | PH, Passive Homing (missile guidance system), petahenry,Philippines (ISO 3166 digram), Probability of Hit,Public Health,Purple Heart |
| 3898 | PHA, PolyHydroxyAlkanoate, Potentially Hazardous Asteroid |
| 3899 | PHL, Philippines (ISO 3166 trigram) |
| 3900 | PHQ,Patient Health Questionnaire |
| 3901 | PHP, Philippine peso (ISO 4217 currency code), PHP: Hypertext Preprocessor (originally Personal Home Page (Tools)) |
| 3902 | pi, Pāli language (ISO 639-1 code) |
| 3903 | Pi, Pebi |
| 3904 | PI, PolyImide,PolyIsoprene,Private Investigator |
| 3905 | PIB, PolyIsoButylene |
| 3906 | PIC, Person In Charge |
| 3907 | PICNIC, Problem In Chair Not In Computer |
| 3908 | PICS, Private Investment Capital Subscription |
| 3909 | PID, Pelvic Inflammatory Disease, Plan Identification Number,Positive Identification,Procedural Identification, Procurement Identification Description |
| 3910 | PIF,(a/i) Partners in Flight |
| 3911 | PIG, Pipeline Inspection Gauge |
| 3912 | PIM,(a/i) Parameterized Ionospheric Model,Path of Intended Motion,Pediatric Index of Mortality,Personal Information Manager/Management,Presence and Interworking Mobility,Processor-In-Memory,Program Integration Manager,Protocol Independent Multicast |
| 3913 | PIN, Personal Identification Number |
| 3914 | PINF, People In Need Foundation (Czech charitable organisation) |
| 3915 | PIPA,(a/i) Program on International Policy Attitudes |
| 3916 | PIR, Priority Intelligence Requirement |
| 3917 | PIRA, Provisional Irish Republican Army |
| 3918 | PIREPS, Pilot Reports |
| 3919 | PITA, Pain In The Ass |
| 3920 | pJ, picojoule |
| 3921 | PJ, petajoule |
| 3922 | PJHQ, Permanent Joint Headquarters |
| 3923 | K, picokelvin |
| 3924 | PKA, Previously Known As,Professionally Known As |
| 3925 | PKE, Partnership of Kindermusik Educators [1] &[2] & [2] |
| 3926 | PKI, Public Key Infrastructure (cryptography) |
| 3927 | PKR, Pakistani rupee (ISO 4217 currency code) |
| 3928 | PKU, Phenylketonuria |
| 3929 | pl, Polish language (ISO 639-1 code) |
| 3930 | pL, picolitre |
| 3931 | PL, Ice Pellets (new style METAR Code), petalitre, Phase Line (Co-ordination Line), Poland (ISO 3166 and FIPS 10-4 country code digram) |
| 3932 | PLAF,(a/i) People's Liberation Armed Forces,Pluggable look and feel,Product Line Architecture Framework |
| 3933 | PLAID, Precision Location and Identification |
| 3934 | PLB, Personal Locator Beacon |
| 3935 | PLC, Public Limited Company (British) |
| 3936 | PLCC, Plastic Leaded Chip Carrier (electronics) |
| 3937 | PLD, Probable Line of Deployment |
| 3938 | PLEBS, People Lacking Everyday Basic Skills |
| 3939 | PLF, Parachute Landing Fall |
| 3940 | pli, Pāli language (ISO 639-2 code) |
| 3941 | PLI, Position Location Information,Private Lands Initiative,Professional Liability Insurance |
| 3942 | PLIF, Planar Laser-Induced Fluorescence |
| 3943 | PLL, Phase-Locked Loop (electronics) |
| 3944 | PLM, Polarized Light Microscope/Microscopy |
| 3945 | PLMBA, Phospholipid Bilayer Microarray |
| 3946 | Pln, Platoon |
| 3947 | PLN, Polish zloty (ISO 4217 currency code) |
| 3948 | PLO, Palestine Liberation Organization |
| 3949 | PLOKTA, Press Lots Of Keys To Abort |
| 3950 | PLP, Platonic Life Partner |
| 3951 | PLS, Palletized Loading System,Personal Locator System |
| 3952 | PLUTO, Pipe Line Under The Ocean |
| 3953 | PLW, Palau (ISO 3166 trigram) |
| 3954 | pm, picometre |
| 3955 | Pm, petametre,Promethium |
| 3956 | PMC, Primary Motor Cortex |
| 3957 | PMI, Positive Material Identification |
| 3958 | PMID, PubMed Identifier |
| 3959 | PMMA, PolyMethylMethAcrylate |
| 3960 | PMS, Premenstrual Syndrome |
| 3961 | PMSL, Piss Myself Laughing (Internet shorthand) |
| 3962 | PMT,Premenstrual Tension (UK) (see Premenstrual Syndrome) |
| 3963 | pN, piconewton |
| 3964 | PN- petanewton,Pitcairn Islands (ISO 3166 diagram) |
| 3965 | PNAC, Project for the New American Century |
| 3966 | PNC- Palestinian National Council,Palmerston North City (cf. PNC, a New Zealand rapper from this city),Pittsburgh National Corporation, one of the two companies that merged into today's PNC Financial Services,Provident National Corporation, the other company that merged into PNC Financial Services |
| 3967 | PNF, Pilot Not Flying (aviation) |
| 3968 | PNG- Papua New Guinea (ISO 3166 trigram), Portable Network Graphics |
| 3969 | PNP- Partido Nuevo Progresista,Plug 'N' Play/Pray,Positive Negative Positive |
| 3970 | PNS, Pensacola, Florida (IATA airport code) |
| 3971 | PNVS, Pilot Night Vision Sensor |
| 3972 | Po, Polonium |
| 3973 | PO, Post Office |
| 3974 | PO, Purchase Order |
| 3975 | POCD, Post-Operative Cognitive Dysfunction |
| 3976 | pod, Plain Old Documentation |
| 3977 | POD- Payable on Death (banking term, and the full name of American metal band P.O.D.),Point of divergence (alternate or counterfactual history),Port of Debarkation |
| 3978 | POE, Perl Object Environment,(b) Port Of Embarkation (c) Polyol Ester (d) Power Over Ethernet |
| 3979 | POETS, Portable Occultation, Eclipse, and Transit electronic-camera System |
| 3980 | POFF, Plain Old Flat File |
| 3981 | POG, Passionfruit, Orange and Guava |
| 3982 | POGO, Project On Government Oversight |
| 3983 | POI, Program Of Instruction |
| 3984 | POK,(a/i) Plane Of Knowledge |
| 3985 | pol, Polish language (ISO 639-2 code) |
| 3986 | POL- Petroleum, Oils and Lubricants, Poland (ISO 3166 trigram) |
| 3987 | POLAD, Political Advice |
| 3988 | POM- Program Objective Memorandum,PolyOxyMethylene |
| 3989 | POMDP, Partially observable Markov decision process |
| 3990 | POP-(a/i) Point of Presence,Post Office Protocol,Progesterone Only Pill |
| 3991 | por, Portuguese language (ISO 639-2 code) |
| 3992 | POR- Portugal (FIFA and IOC trigram, but not ISO 3166), Proposed Operational Requirement |
| 3993 | POS-(a/i) Point Of Sale terminal (retail industry transaction computers), Piece Of S**t |
| 3994 | POSH, Port Outbound Starboard Home (alleged) |
| 3995 | POSSLQ,Person of the Opposite Sex Sharing Living Quarters |
| 3996 | POT,(a/i) Plane Of Tranquility |
| 3997 | POTS- Plain Old Telephone Service (cf. PANS),Postural Orthostatic Tachycardia Syndrome |
| 3998 | POV, Point of view |
| 3999 | POW, Prisoner of war |
| 4000 | PPA- Parahippocampal Place Area,PolyPhthalAmide |
| 4001 | PPASC, (U.S.) Plans and Program Analysis Support Center |
| 4002 | PPCLI, Princess Patricia's Canadian Light Infantry (regiment) |
| 4003 | PPG- Pittsburgh Plate Glass (the original name of the company now known as PPG Industries),The Powerpuff Girls |
| 4004 | PPLI, Precise Participant Location & Identification |
| 4005 | ppm, Parts Per Million |
| 4006 | PPM, Parts Per Million |
| 4007 | PPM, Project Planning and Management |
| 4008 | PPO, PolyPhenylene Oxide |
| 4009 | PPP- Point-to-Point Protocol,Purchasing Power Parity |
| 4010 | PPQ, Pulses Per Quarter (used in music programming, sequencers) |
| 4011 | PPQN, Pulses Per Quarter Note (ditto) |
| 4012 | PPQT, Pre-Production Qualification Test |
| 4013 | PPS- post postscriptum,Precise/Precision Positioning Service (GPS),PolyPhenylene Sulfide |
| 4014 | PPV, Pay-per-view |
| 4015 | PQ- Province of Québec (obsolete postal code, replaced by QC), Parti Québécois,PR[edit] |
| 4016 | Pr, Pastor or Priest |
| 4017 | Pr, Praseodymium |
| 4018 | PR- Public Relations, Puerto Rico (postal symbol; ISO 3166 digram) |
| 4019 | Prb, Presbyter |
| 4020 | PRBO, Point Reyes Bird Observatory |
| 4021 | PRC, People's Republic of China |
| 4022 | PRD, CERDEC Product Realization Directorate |
| 4023 | PRFG, Partial Fog (METAR Code) |
| 4024 | PRI, Puerto Rico (ISO 3166 trigram) |
| 4025 | PRK, Democratic People's Republic of Korea (ISO 3166 trigram) |
| 4026 | PRM, Personnel iness Management |
| 4027 | PRT- Portugal (ISO 3166 trigram), Provincial Reconstruction Team |
| 4028 | PRY, Paraguay (ISO 3166 trigram) |
| 4029 | ps- Pashto language (ISO 639-1 code),picosecond |
| 4030 | pS, picosiemens |
| 4031 | Ps, petasecond |
| 4032 | PooS,Poo Sniffer (Internet shorthand) |
| 4033 | PSA- Paralysis Society of America,Pharmaceutical Society of Australia,Pressure-Sensitive Adhesive,Production Services Association,Prostate Specific Antigen,Public Service Announcement,Public Service Association |
| 4034 | PSC- Personal service corporation,Primary Somatosensory Cortex |
| 4035 | PSE, Palestinian Territory, Occupied (ISO 3166 trigram) |
| 4036 | PSG, Pacific Seabird Group |
| 4037 | PSI, Pounds per square inch |
| 4038 | PSI,(a/i) Portable Source Initiative |
| 4039 | PSO- Peace Support Operations,Primary Standardisation Office (ABCA),Protocol Supporting Organization (of the ICANN) |
| 4040 | PSS, Personnel System Support |
| 4041 | PST, Pacific Standard Time (UTC-8 hours) |
| 4042 | PSU, Pennsylvania State University |
| 4043 | PsyOp, Psychological Operations |
| 4044 | pt, Portuguese language (ISO 639-1 code) |
| 4045 | pT, picotesla |
| 4046 | Pt, Platinum |
| 4047 | PT, petatesla, Physical Training (in the Army), Portugal (ISO 3166 digram) |
| 4048 | PTA, Parent-Teacher Association |
| 4049 | PTAL, Public Transport Accessibility Level |
| 4050 | PTAN - |
| 4051 | PTES, People's Trust for Endangered Species |
| 4052 | PTFE, PolyTetraFluoroEthylene |
| 4053 | PTI, Pardon the Interruption |
| 4054 | PTL, Patrol, Primary Target Line |
| 4055 | PTO, Patent and Trademark Office,Please Turn Over |
| 4056 | PTSD, Post-Traumatic Stress Disorder |
| 4057 | Pu, Plutonium |
| 4058 | PU- Guinea-Bissau (FIPS 10-4 country code), Polyurethane, United States Miscellaneous Pacific Islands (ISO 3166 digram; obsolete 1986) |
| 4059 | Pub, Publication |
| 4060 | PUG,(a/i) PET Users Group |
| 4061 | PUN,(a/i) Pull-Up Network |
| 4062 | PUP,(a/i) Pull-Up Point |
| 4063 | PUR, Puerto Rico (IOC and FIFA trigram, but not ISO 3166) |
| 4064 | pus, Pashto language (ISO 639-2 code) |
| 4065 | PUS, United States Miscellaneous Pacific Islands (ISO 3166 trigram; obsolete 1986) |
| 4066 | pV, picovolt |
| 4067 | PV, petavolt |
| 4068 | PVC, Permanent Virtual Circuit,PolyVinyl Chloride,Premature Ventricular Contraction,Primary Visual Cortex |
| 4069 | PvE, Player versus Environment |
| 4070 | PvP, Player versus Player |
| 4071 | PVR, Personal Video Recorder |
| 4072 | PvZ, Plants vs. Zombies |
| 4073 | pW, picowatt |
| 4074 | PW- Palau (postal symbol; ISO 3166 digram) |
| 4075 | petawatt- |
| 4076 | PWA, Pirates With Attitude |
| 4077 | PWBA, Pension and Welfare Benefits Administration |
| 4078 | PwC, PricewaterhouseCoopers (international accounting firm) |
| 4079 | PWC, PieceWise Constant (describing a mathematical function) |
| 4080 | PWL, PieceWise Linear (describing a mathematical function) |
| 4081 | PWLC, PieceWise Linear and Concave/Convex (describing a mathematical function) |
| 4082 | PWR, Pressurized Water Reactor |
| 4083 | PWV, Pretoria-Witwatersrand-Vereeniging, the original name for the South African province now known as Gauteng, and still used to refer to the metropolitan agglomeration at the core of the province |
| 4084 | PX, Post eXchange |
| 4085 | PY, Paraguay (ISO 3166 digram),Person-Year, Portsmouth yardstick |
| 4086 | PYF, French Polynesia (ISO 3166 trigram) |
| 4087 | PYG, Paraguayan guaraní (ISO 4217 currency code) |
| 4088 | PYMWYMI, Put Your Money Where Your Mouth Is |
| 4089 | PZ, Panama Canal Zone (ISO 3166 digram; obsolete 1980), Pickup Zone |
| 4090 | Q1, First Quarter |
| 4091 | Q2, Second Quarter |
| 4092 | Q3, Third Quarter |
| 4093 | Q4, Fourth Quarter |
| 4094 | QA, Qatar (FIPS 10-4 country code; ISO 3166 digram) |
| 4095 | Qantas, Queensland And Northern Territory Aerial Services |
| 4096 | QAR, Qatari rial (ISO 4217 currency code) |
| 4097 | QAT, Qatar (ISO 3166 trigram) |
| 4098 | QB, Quarterback (football) |
| 4099 | QC, Quality Control, Québec (postal symbol), Queen's Counsel |
| 4100 | QCA, Qualifications and Curriculum Authority,Quality Council of Alberta |
| 4101 | QCD, Quantum ChromoDynamics |
| 4102 | QDR, Quadrennial Defense Review |
| 4103 | QEH, Queen Elizabeth's Hospital |
| 4104 | QFE, Quoted For Emphasis, Local ground level atmospheric pressure (aeronautical Q code) |
| 4105 | QK, Air Canada Jazz (IATA airline designator) |
| 4106 | QLD, Queensland, (Australia) (postal symbol) |
| 4107 | QM, Quality Management,Quantum Mechanics,Queen Mother |
| 4108 | QNH, Regional mean sea level atmospheric pressure (aeronautical Q code) |
| 4109 | QPR, Queens Park Rangers F.C. (English football team), Quality-Price Ratio (wine evaluation term) |
| 4110 | QPS, Quark Publishing System |
| 4111 | QR, Quake Rally,Qualitative Reasoning,Queensland Rail,Queen's Rangers,Quick Release,Quiet Riot, Qatar Airways (IATA airline designator) |
| 4112 | QSCAT, Quick Scatterometer satellite |
| 4113 | QSL, Québec Sign Language |
| 4114 | QSO, Quasi-Stellar Object |
| 4115 | QT, Quentin Tarantino,QuickTime,QuikTrip,QT (cute) Software |
| 4116 | qu, Quechua language (ISO 639-1 code) |
| 4117 | Quango, (British Commonwealth) QUasi Autonomous Non-Governmental Organisation |
| 4118 | Quasar, Quasi-stellar radio source |
| 4119 | QUB,Queen's University Belfast |
| 4120 | que, Quechua language (ISO 639-2 code) |
| 4121 | QUIET, Q and U Imaging ExperimenT (Q and U are the Stokes parameters of the CMBR polarization) |
| 4122 | QZ, Awair (IATA airline designator) |
| 4123 | R, Reinforcing,Right, Röntgen, Restricted (movie rating) |
| 4124 | R2I, Resistance to Interrogation |
| 4125 | R3P, Rearm, Refuel, and Resupply Point |
| 4126 | Ra, Radium |
| 4127 | RA, Radio Australia |
| 4128 | RA, Rain (METAR Code), Rear Area,Reinforced Alert,Republican Army,Right Ascension,Royal Artillery (UK),Royal Academy |
| 4129 | RAA, Royal Automobile Association,South Australia, Rear Assembly Area |
| 4130 | RAAF, Royal Australian Air Force |
| 4131 | Rabobank, Raiffeisen-Boerenleenbank (from the two banks that merged to form the modern company) |
| 4132 | RAC, Royal Automobile Club (in the United Kingdom, renamed RAC plc in 2002) |
| 4133 | RACK, Risk Aware Consensual Kink (SM phrase) |
| 4134 | Racon, RAdar beaCON |
| 4135 | RADA, Royal Academy of Dramatic Art |
| 4136 | Radar, Radio Detection And Ranging |
| 4137 | RADB, Real America Database,Resource Assessment Database,Reunion Address DataBase,Rice Allelopathy Data Base,Routing Arbiter Database |
| 4138 | RADb, Routing Assets Data Base |
| 4139 | RadB, Rad51/Dmc1 homologous protein |
| 4140 | RADC, Region Air Defence Commander |
| 4141 | RAE, UK Royal Aircraft Establishment (-1991) |
| 4142 | RAF, Red Army Faction,Royal Air Force |
| 4143 | RAG, Raising and Giving,Rocket Antitank Grenade |
| 4144 | RAGBRAI, Register's Annual Great Bicycle Ride Across Iowa |
| 4145 | RAM,Rolling Airframe Missile, |
| 4146 | RAM,Royal Air Maroc |
| 4147 | Ramark, RAdar MARKer |
| 4148 | RAOC, Rear Area Operation Centre |
| 4149 | RAP,(a/i) Radio Access Point,Radiological Assistance Program (U.S. Department of Energy),Rear Area Protection,Recognised [Operating/Operational] Air Picture,Recurring Advance Payment,Relational Associative Processor,Reliable Acoustic Path,Rocket-Assisted Projectile,Rule Against Perpetuities |
| 4150 | RARDE, UK Royal Armament Research and Development Establishment (1962-1991) |
| 4151 | RARE, Rapid Acquisition with Relaxation Enhancement (MRI technique) |
| 4152 | RASC, Royal Army Service Corp,Former corps of British Army |
| 4153 | RATELO, Radiotelephone Operator |
| 4154 | Rb, Rubidium |
| 4155 | RB, Running Back (football) |
| 4156 | RBAR, Row By Agonizing Row,a derogatory way of describing a technique of scanning a set of records in a database to update or examine the contents of each one. This is the technique of last resort in most cases, since most database operations are optimized when using set based analysis instead of the RBAR method. |
| 4157 | RBI, Runs Batted In |
| 4158 | RC,see entry |
| 4159 | RCA- Radio Corporation of America,Root Cause Analysis,Royal Canadian Artillery,Royal City Avenue (famous entertainment zone in Thailand) |
| 4160 | RCAF, Royal Canadian Air Force |
| 4161 | RCC, Rescue Co-ordination Centre |
| 4162 | RCCO, Royal Canadian College of Organists |
| 4163 | RCHA, Royal Canadian Horse Artillery (regiment) |
| 4164 | RCMP, Royal Canadian Mounted Police |
| 4165 | RCS- Radar Cross-Section,Reaction Control System,Revision Control System |
| 4166 | RD,Radio Disney |
| 4167 | RDA- Research, Development, and Acquisition,Recommended Daily Allowance (Nutrition) |
| 4168 | RDD, Radiological Dispersion Device |
| 4169 | RDECOM, (U.S. Army) Research, Development and Engineering Command |
| 4170 | RDM, Remotely Delivered/Deliverable Mine |
| 4171 | RDO- Rapid, Decisive Operation,Regular Day Off,Remote Data Objects |
| 4172 | RDT, Remote Digital Terminal |
| 4173 | RDV, Remote Detection Vehicle |
| 4174 | Re, Rhenium |
| 4175 | RE, Royal Engineers |
| 4176 | REACH, Registration, Evaluation, Authorisation and Restriction of Chemical Substances |
| 4177 | REACT, Remote Electronically Activated Control Technology |
| 4178 | REAM, Retired Educators Association of Minnesota |
| 4179 | RECCE, Reconnaissance |
| 4180 | REEF, Reef Environmental Education Foundation |
| 4181 | REM,(i/a) Rapid Eye Movement (sleep phase),Rosicrucian Egyptian Museum |
| 4182 | REME, Royal Electrical and Mechanical Engineers |
| 4183 | RERC, Rehabilitation Engineering Research Center |
| 4184 | RES, Radiation Exposure Status, Reserve |
| 4185 | RESNA, Rehabilitation Engineering and Assistive Technology Society of North America |
| 4186 | REU, Réunion (ISO 3166 trigram) |
| 4187 | Rf, Rutherfordium |
| 4188 | RF, Radio Frequency,Receptive Field (neurophysiology) |
| 4189 | RFC, Request for Comments,Royal Flying Corps (WWI precursor to RAF) |
| 4190 | RFD, Request for Documentation |
| 4191 | RFE, Request for Evaluation |
| 4192 | RFEF, Real Federación Española de Fútbol (Spanish for Royal Spanish Football Federation) |
| 4193 | RFF, Right of First Refusal (legal term) |
| 4194 | RFI, y For Inspection,y For Issue,Request For Information,Radio Frequency Interference |
| 4195 | RFID, Radio Frequency IDentification |
| 4196 | RFL, Rugby Football League |
| 4197 | RFP, Request for Proposal |
| 4198 | RFQ, Request for Quotation |
| 4199 | RFT, Request for Tender |
| 4200 | RFU, Rugby Football Union |
| 4201 | Rg, Roentgenium |
| 4202 | RG, Republican Guard |
| 4203 | RGB, Red Green Blue (colour model) |
| 4204 | RGBI, Red Green Blue Intensity (ditto) |
| 4205 | Rh, Rhodium |
| 4206 | RH, Southern Rhodesia (ISO 3166 digram; obsolete 1980) |
| 4207 | RHIC, Relativistic Heavy Ion Collider |
| 4208 | RHLI, Royal Hamilton Light Infantry (Canadian militia regiment) |
| 4209 | RHO, Southern Rhodesia (ISO 3166 trigram; obsolete 1980) |
| 4210 | RHS, Right Hand Side,Redland High School, Royal Horticultural Society,London |
| 4211 | RHU, Replacement Holding Unit |
| 4212 | RI, Rex et Imperator, Regina et Imperatrix King-Emperor |
| 4213 | RI, Rhode Island (postal symbol) |
| 4214 | RIAA, Recording Industry Association of America |
| 4215 | RIBA, Royal Institute of British Architects |
| 4216 | RIF- Reduction In Force (layoffs),Resistance Index for Frostbite,ing Is Fundamental |
| 4217 | RIFA, Red imported fire ant |
| 4218 | RILA, Retail Industry Leaders Association |
| 4219 | RIM- Remote integrated multiplexer, Australian term for a digital loop carrier,Research In Motion, former name of the BlackBerry company,Revolutionary Internationalist Movement (Maoist organization),Royal Indian Marine, former navy of British colonial India |
| 4220 | RIMVS, Retinal Imaging Machine Vision System |
| 4221 | RINO, Republican In Name Only[1] |
| 4222 | RISC, Reduced Instruction Set Computer |
| 4223 | RISTA, Reconnaissance, Intelligence, Surveillance, and Target Acquisition (see also ISTAR) |
| 4224 | RWH, Rain Water Harvesting |
| 4225 | RJD, Reduced Julian Day |
| 4226 | RKBA,Right to Keep and Bear Arms (Second Amendment to the United States Constitution) |
| 4227 | RKI, Robert Koch Institute, German governmental research institute in Berlin |
| 4228 | RKO, Radio-Keith-Orpheum Pictures |
| 4229 | RL, Release Line,Real Life |
| 4230 | RLP, Recognised [Operating/Operational] Land Picture |
| 4231 | RLS, Restless Leg Syndrome |
| 4232 | RLY, Rally Point |
| 4233 | RM,see separate disambiguation page |
| 4234 | rm, Raeto-Romansh language (ISO 639-1 code) |
| 4235 | RMC, Robert Menzies College |
| 4236 | RMDA, Records Management and Declassification Agency |
| 4237 | RMP, Recognised [Operating/Operational] Maritime Picture |
| 4238 | RMS, Rate-Monotonic Scheduling,Richard M. Stallman,Root-Mean-Square,Royal Mail Ship (e.g. RMS Titanic) |
| 4239 | rn, Rundi language (Kirundi) (ISO 639-1 code) |
| 4240 | Rn, Radon |
| 4241 | RN, Radio Netherlands |
| 4242 | RN, Royal Navy,Registered Nurse (US) |
| 4243 | RNA, RiboNucleic Acid |
| 4244 | RNAD,Royal Naval Armaments Depot (UK) |
| 4245 | RNPS, Radio Network Planning System |
| 4246 | RNZ, Radio New Zealand |
| 4247 | RNZI, Radio New Zealand International |
| 4248 | ro, Romanian language (ISO 639-1 code) |
| 4249 | RO, Range Only,Red Orchestra, Romania (ISO 3166 and FIPS 10-4 country code digram) |
| 4250 | ROA,(a/i) Rate Of Ascent |
| 4251 | ROC,(i/a) Receiver Operating Characteristic (statistics),Regional Operations Centre,Republic Of China,Roc-A-Fella Records,Regional Organisations of Councils |
| 4252 | ROD,(a/i) Rate Of Descent,Record Of Decisions,Report Of Discrepancy |
| 4253 | ROE, Rules Of Engagement |
| 4254 | roh, Raeto-Romansh language (ISO 639-2 code) |
| 4255 | ROH, Ring of Honor |
| 4256 | ROI, Return On Investment, Republic of Ireland. |
| 4257 | ROFLOL, Rolling On the Floor Laughing Out Loud |
| 4258 | ROK,(a/i) Republic of Korea |
| 4259 | ROL, Romanian leu (ISO 4217 currency code) |
| 4260 | ROM, -Only Memory,Refuel On the Move,Royal Ontario Museum |
| 4261 | ron, Romanian language (ISO 639-2 code) |
| 4262 | RON, Romanian new leu (ISO 4217 currency code) |
| 4263 | ROP, Render Output Pipeline |
| 4264 | ROPE,Research Opportunity and Performance Evidence |
| 4265 | ROS, Reactive Oxygen Species |
| 4266 | ROU, Romania (ISO 3166 trigram) |
| 4267 | ROV, Remotely Operated Vehicle |
| 4268 | ROW, Right Of Way,Rest Of the World |
| 4269 | ROZ,(a/i) Restricted Operations Zone |
| 4270 | RP- Philippines (FIPS 10-4 country code), Release Point,Role-Playing [relationship potential] |
| 4271 | RPA, Regional Plan Association |
| 4272 | RPD, Recognition-Primed Decision-making |
| 4273 | RPF, Rwandan Patriotic Front |
| 4274 | RPG- (US-CA) Regional Planning Group,Report Program Generator,Rocket Projectile Gun,Rocket-Propelled Grenade,Role-Playing Game |
| 4275 | RPL, Reverse Polish Lisp |
| 4276 | rpm, revolutions per minute |
| 4277 | RPM- Records, Promotion, Music (expansion of the title of a former Canadian music magazine),Red Hat Package Manager |
| 4278 | RPN, reverse Polish notation |
| 4279 | rps, revolutions per second |
| 4280 | RPV, Remotely Piloted Vehicle |
| 4281 | RQ, Puerto Rico (FIPS 10-4 territory code) |
| 4282 | RRB, Railroad Retirement Board |
| 4283 | RRN, Recurrence Rate Number |
| 4284 | RRP, Recurrent Respiratory Papillomatosis |
| 4285 | RRS, Racing Rules of Sailing |
| 4286 | RRSP, Registered Retirement Savings Plan (Canada; roughly equivalent to the IRA in the U.S.) |
| 4287 | RS, Russia (FIPS 10-4 country code) |
| 4288 | RSA- Regimental Support Area,Republic of South Africa,Rivest-Shamir-Adleman encryption, South Africa (IOC and FIFA trigram, but not ISO 3166) |
| 4289 | RSD- Reflex Sympathetic Dystrophy, Serbian dinar (ISO 4217 currency code) |
| 4290 | RSI, Repetitive Strain Injury |
| 4291 | RSJ, Rolled Steel Joist (construction) |
| 4292 | RSN, Real Soon Now (coined by author Jerry Pournelle) |
| 4293 | RSPB, (UK) Royal Society for the Protection of Birds |
| 4294 | RSPCA, Royal Society for the Prevention of Cruelty to Animals |
| 4295 | RSR, Required Supply Rate |
| 4296 | RSRE, UK Royal Signals and Radar Establishment (1976-1991) |
| 4297 | RSRI, Red Sands Research Institute |
| 4298 | RSS, Really Simple Syndication |
| 4299 | RSTA, Reconnaissance, Surveillance, and Target Acquisition |
| 4300 | RT, Real Time,Radio Telephone, Return to duty |
| 4301 | RTA, Road traffic accident (British) |
| 4302 | RTBF, Radio-Télévision belge de la Communauté française |
| 4303 | RTCA, RTCA, Inc. |
| 4304 | RTF, Rich Text Format |
| 4305 | RTFM, the Fucking/Fine Manual |
| 4306 | RTG, Radio-isotope Thermoelectric Generator also used for Rubber Tyred Gantry crane |
| 4307 | RTGS, Royal Thai General System of Transcription,Real Time Gross Settlement |
| 4308 | RTI, Run-Time Infrastructure (Simulation) |
| 4309 | RTL,see entry |
| 4310 | RTLS, Return to Launch Site,period in NASA Space Shuttle assent profile where, during assent, shuttle aborts assent and turns and glides back to landing strip at launch site |
| 4311 | RTP, Real-time Transport Protocol |
| 4312 | RTS,see entry |
| 4313 | RTT, Round Trip Timing |
| 4314 | RTV, Rapid Terrain Visualization ACTD,Retro Television Network |
| 4315 | ru, Russian language (ISO 639-1 code) |
| 4316 | Ru, Ruthenium |
| 4317 | RU, Russia (ISO 3166 digram) |
| 4318 | RUB, Russian ruble (ISO 4217 currency code) |
| 4319 | RUC, Royal Ulster Constabulary |
| 4320 | run, Rundi language (Kirundi) (ISO 639-2 code) |
| 4321 | rus, Russian language (ISO 639-2 code) |
| 4322 | RUS, Russia (ISO 3166 trigram) |
| 4323 | RUSI, Royal United Services Institute for Defence Studies |
| 4324 | RV- Reconnaissance Vehicle,Recreational Vehicle,Re-entry Vehicle,reciprocation void |
| 4325 | rw, Rwanda language (Kinyarwanda) (ISO 639-1 code) |
| 4326 | RW, Rwanda (ISO 3166 and FIPS 10-4 country code digram) |
| 4327 | RWA, Rwanda (ISO 3166 trigram) |
| 4328 | RWADA, Resident Weighted Average Daily Attendance (New York State term used in public education to indicate the size of a school district, i.e. its number of students) |
| 4329 | RWF, Rwandan franc (ISO 4217 currency code) |
| 4330 | RWR, Radar Warning Receiver |
| 4331 | RWS, Remote Weapon Station |
| 4332 | RX, Receive |
| 4333 | SA- Sand (METAR Code),Saudi Arabia (ISO 3166 and FIPS 10-4 country code digram), Sexaholics Anonymous, sine anno (Latin, “without year”),Situational awareness,South Africa,(i/s) South Australia (postal symbol), Standards Australia,Sturmabteilung (German, “Storm Detachment”, Nazi forerunner and rival of SS),S.A.,designation for a corporation in many European countries; see article for meanings |
| 4334 | SAA- Saudi Arabian Airlines, former name of Saudia,Sex Addicts Anonymous,South African Airways,Southern Athletic Association,Standards Association of Australia, a former name of Standards Australia,SAAB — Svenska Aeroplan AB (Swedish aircraft manufacturer; also refers to its former auto manufacturing arm),SAAFR — (a/i) Standard use Army Aircraft Flight Route (“safer”),SAAMI — Sporting Arms and Ammunition Manufacturers' Institute (“sammy”),SAARC — South Asian Association for Regional Cooperation,SAB — Soprano Alto Baritone,Sabena — Société anonyme belge d'exploitation de la navigation aérienne (French for “Belgian Company for Exploiting Aerial Navigation”, 1923-2001),SABIC — Saudi Basic Industries Corporation,SABR — Society for American Baseball Research |
| 4335 | SAC- Standards Activity Committee (of SISO),U.S. Strategic Air Command (1946-1992),SACAT — Semi Attended Customer Activated Terminal (Supermarket checkout),SACEUR — Supreme Allied Commander EURope,SACLANT — Supreme Allied Commander atLANTic,SACLOS — Semi-Automatic Command to Line of Sight |
| 4336 | SAD- Safford Regional Airport (IATA code), Seasonal Affective Disorder,Situational Awareness Display,SADD — originally Students Against Drunk Driving, now Students Against Destructive Decisions (U.S. national school-related group) |
| 4337 | SADL- Situation Awareness Data Link (“saddle”),Structural Architecture Description Language |
| 4338 | SAE- Society of Automotive Engineers[1],Stamped addressed envelope,SAFER — Steel And Foam Energy Reduction,SAFICT — Software Agents as Facilitators of Interoperability in Collective Training,sag — Sango language (ISO 639-2 code),SAG — Screen Actors Guild,SAGAT — Situation Awareness Global Assessment Technique,SAGE — Semi-Automatic Ground Environment (simulation),SAHB — Sensational Alex Harvey Band,SAIC — Science Applications International Corporation |
| 4339 | SALT-(a/i) Save A Life Today (SALT) Alert; Emergency Contact System, Southern African Large Telescope,Strategic Arms Limitation s |
| 4340 | SAM- Sequential-Access Memory,Sociedad Aeronáutica de Medellín,Surface-to-Air Missile |
| 4341 | san- Sanskrit language (ISO 639-2 code), Storage Area Network |
| 4342 | SAR- Saudi riyal (ISO 4217 currency code), Search And Rescue,Special Administrative Region,Synthetic Aperture Radar |
| 4343 | SARA- Southeastern Association for Research in Astronomy,Scientific Atlanta Resident Application,Scottish Amateur Rowing Association,Southern African Railway Association,State Administration for Religious Affairs,SARP — Search And Rescue Processor,SARR — (i/a) Search And Rescue Repeater,SARS — Severe Acute Respiratory Syndrome |
| 4344 | SART- Search and Rescue Transponder,Situational Awareness Rating Technique,SARU — South African Rugby Union |
| 4345 | SAS- Scandinavian Airlines System,Second Avenue Subway,Situational Awareness System,Special Air Service,Studies, Analysis and Simulation,Side Angle Side, Statistical Analysis System (original meaning; SAS Institute Inc. has evolved far beyond that scope),SASE — Self-Addressed Stamped Envelope,SASO — Stability and Support Operations,SASOL — Suid Afrikaanse Steenkool en Oli.e. (Afrikaans, “South African Coal and Oil”) |
| 4346 | SAT- formerly Scholastic Aptitude Test and Scholastic Assessment Test; now known solely by the initials,Small Arms Trainer,SATB — Soprano Alto Tenor Bass,SATNAV — Satellite Navigation (Increasingly common GPS based system in new vehicles),SATs — Standard Assessment Tasks and other similar terms describing tests used in English schools; see National Curriculum assessment#Terminology,SAU — Saudi Arabia (ISO 3166 trigram),SAVAK — Sazamane Etelaat va Amniate Kechvar (Iranian “Security and Intelligence Service”) |
| 4347 | SAW- Squad Automatic Weapon,Surface acoustic wave,SAWE — Society of Allied Weight Engineers,SB[edit],Sb — Antimony (Latin Stibium) |
| 4348 | SB- Sexy Bitch,Sexy Bastard,Sexy Boy (disambiguation), Solomon Islands (ISO 3166 digram), Special Warfare Boat Operator |
| 4349 | SBA- Santa Barbara Airport,Simulation-Based Acquisition,Sovereign Base Area,Student bar association,SBB — German for the Swiss Federal Railways |
| 4350 | SBD- Solomon Islands dollar (ISO 4217 currency code),Silent But Deadly |
| 4351 | SBNO, Standing but not operating (in reference to amusement parks) |
| 4352 | SBS- Special Boat Service,Special Broadcasting Service,Seoul Broadcasting System |
| 4353 | SBW- Sonny Bill Williams (New Zealand dual-code rugby player),SC[edit],sc — Sardinian language (ISO 639-1 code),Sc — Scandium |
| 4354 | SC- Cruiser Submarine (US Navy hull classification) c Saint Kitts and Nevis (FIPS 10-4 country code; from Saint Christopher),Seychelles (ISO 3166 digram),South Carolina (postal symbol) |
| 4355 | SCO- Santa Cruz Operation (initials later used by SCO Group), Scotland (FIFA trigram; not eligible for an ISO 3166 or IOC trigram), Shanghai Cooperation Organization,SCOTUS — Supreme Court of the United States,SCR — Seychelles rupee (ISO 4217 currency code),SCRAM — Safety Control Rod Axe Man |
| 4356 | SCS- Scan Correlated Shift,Soil Conservation Service |
| 4357 | SD- Secure Digital (memory card format),Sheriff's department,Smoke/Decontamination, South Dakota (postal symbol),Sudan (ISO 3166 digram) |
| 4358 | SDC- Shaft Driven Compressor,U.S. Army Strategic Defense Command (1985-1992),SDG — Sudanese pound (ISO 4217 currency code),SDG — Sum Dum Goy,greasy spoon chinese restaurant,SDH — Synchronous Digital Hierarchy |
| 4359 | SDHC, Secure Digital High Capacity |
| 4360 | SDXC, Secure Digital eXtended Capacity |
| 4361 | SEC- U.S. Securities and Exchange Commission, Security,Southeastern Conference,SECAM — Séquentiel couleur à mémoire (French for “Colour Sequential with Memory”; TV standard, cf. NTSC, PAL),SECDEF — (U.S.) Secretary of Defense,SED — CERDEC Software Engineering Directorate,SEDRIS — Synthetic Environment Data Representation and Interchange Specification,SEE — Small Emplacement Excavator,SEG — Society of Exploration Geophysicists,SEG — Special Escort Group,SEK — Swedish krona (ISO 4217 currency code),Selkent — South East London & Kent Bus Company,SELT — Single Ended Line Test (ing) |
| 4362 | SEM-(i/a) Sensor Employment Manager,Switch to Email Mode, i.e. stop texting as it is more disruptive by making a sound or vibrating and email instead, for a given time |
| 4363 | SEN- Senegal (ISO 3166 trigram), Small Extension Node |
| 4364 | SEP- Somebody Else’s Problem,Spherical Error Probable,System Enhancement Package,System Engineering Plan,SEPTA — Southeastern Pennsylvania Rapid-Transit Authority,SERE — Survival, Evasion, Resistance and Escape,SESSPE — Submarine Escape and Surface Survival Personnel Equipment,SET — Staphylococcal EnteroToxin,SETI — Search for ExtraTerrestrial Intelligence,SETAC — Society for Environmental Toxicology and Chemistry |
| 4365 | SEU- Single Event Upset (solid state physics),Slightly Enriched Uranium,Special Evidence Unit,SF[edit] |
| 4366 | SF- Fleet Submarine (retired US Navy hull classification), San Francisco,Science fiction, South Africa (FIPS 10-4 country code), Speculative fiction,Special Forces |
| 4367 | SFA- Sales force automation,Saturated fatty acid,Scottish Football Association,Stephen F. Austin (State University),Sudan Football Association |
| 4368 | SFE- Supercritical fluid extraction,Sydney Futures Exchange,SFF — Standard File Format,sf&f — Science fiction & fantasy,SFM — Switch to Facebook Mode, i.e. to message someone on Facebook instead of texting as it is less disruptive in the sense of the phone not making sound or vibrating, for a period of time,SFOB — Special Forces Operations Base,SFOR — UN Stabilisation Force (in Bosnia and Herzegovina),SFU — Simon Fraser University (Canada),SG[edit],sg — Sango language (ISO 639-1 code),Sg — Seaborgium |
| 4369 | SG- Senegal (FIPS 10-4 country code),Singapore (ISO 3166 digram),Snow Grains (METAR Code), Study Group |
| 4370 | SGC- Server Gated Cryptography, Stargate Command,SGD — Singapore dollar (ISO 4217 currency code),SGML — Standard Generalized Markup Language,SGP — Singapore (ISO 3166 trigram) |
| 4371 | SGS- South Georgia and the South Sandwich Islands (ISO 3166 trigram), Svalbard Ground Station (Landsat),Société Générale de Surveillance,SH[edit],sh — Serbo-Croatian language (ISO 639-1 code) |
| 4372 | SH- Saint Helena (ISO 3166 digram), SONATRACH (Algerian petroleum company) |
| 4373 | SHAC- Stop Huntingdon Animal Cruelty,Student Health Action Coalition,SHAPE — Supreme Headquarters Allied Powers Europe,SHF — Super High Frequency,SHN — Saint Helena (ISO 3166 trigram) |
| 4374 | SHO, Showtime (see also sho.com) |
| 4375 | SI- Slovenia (ISO 3166 and FIPS 10-4 country code digram), Socialist International,Sports Illustrated,Système International (French, International System of Units),SIA — Singapore Airlines (ICAO code),SIA — Survivors of Incest Anonymous,SIAM — Society for Industrial and Applied Mathematics,SIC — Standard Industrial Classification,SICS — (a/i) Swedish Institute of Computer Science,SIDS — Sudden infant death syndrome,SIDU — select, insert, delete, update. See Create, read, update and delete,SIF — Selective Identification Feature,SIFF — Successor IFF |
| 4376 | SIIT- Saskatchewan Indian Institute of Technologies (Canadian university),Sirindhorn International Institute of Technology (Thai university),Stateless IP/ICMP Translation algorithm,SIMAC — Semantic Interaction with Music Audio Contents,SIMLAS — Soldier Integrated Multipurpose Laser System,SIMM — Single In-line Memory Module,SIMNET — SIMulator NETwork, later SIMulation NETwork,SIMNET-D, SIMNET-Developmental,SIMP — Strongly Interacting Massive Particle |
| 4377 | SIMPLE- Satellite Interactive Multimedia Platform for Low-cost Earth stations, Savings Incentive Match Plan for Employees (as used in SIMPLE IRA), Standard Interface for Multiple Platform Link Evaluation (NATO STANAG 5602),sin — Sinhalese language (ISO 639-2 code),SIN — Social Insurance Number (Canada),SINCGARS — SINgle Channel Ground and Airborne Radio System |
| 4378 | SIP- Session Initiation Protocol,State Implementation Plan,System Improvement Program,Systematic Investment Plan,SIPP — Self-Invested Personal Pension |
| 4379 | Siri, Speech Interpretation and Recognition Interface (Apple iOS software) |
| 4380 | SIRI, Service Interface for Real Time Information |
| 4381 | SISO- Simulation Interoperability Standards Organization,Society of Independent Show Organizers,SIW — Simulation Interoperability Workshop,SIYSS — Stockholm International Youth Science Seminar,SJ[edit] |
| 4382 | SK- Saskatchewan (postal symbol),Slovakia (ISO 3166 digram),SKC — Clear Sky (METAR Code),SKK — Slovak koruna (ISO 4217 currency code),SKM — Sikkim (ISO 3166 trigram; obsolete 1975),SL[edit],sl — Slovene language (ISO 639-1 code) |
| 4383 | SL- Sierra Leone (ISO 3166 and FIPS 10-4 country code digram), Start Line |
| 4384 | SLA- Service Level Agreement,Symbionese Liberation Army,SLAA — Sex and Love Addicts Anonymous,SLAC — Stanford Linear Accelerator Center,SLAN — sine loco, anno, nomine (Latin, “without place, year, or name”),SLAPP — Strategic lawsuit against public participation,SLB — Solomon Islands (ISO 3166 trigram),SLBM — Sea/Submarine-Launched Ballistic Missile,SLC — Scan Line Corrector,SLE — Sierra Leone (ISO 3166 trigram),SLI/SLi,(i/s) Scan-Line Interleave,Scalable Link Interface,SLIT — SubLingual ImmunoTherapy,slk — Slovak language (ISO 639-2 code),SLL — Sierra Leone leone (ISO 4217 currency code),SLO — Slovenia (IOC trigram, but not FIFA or ISO 3166) |
| 4385 | SLOC- Sea Lines Of Communication,Source Lines Of Code,SLORC — State Law and Order Restoration Council (of Burma) |
| 4386 | SLP- Sea Level Pressure, Super Long Play,slph — Standard litre per hour (air flow),slpm — Standard litre per minute (air flow),slps — Standard litre per second (air flow),SLR — Single-Lens Reflex (camera) |
| 4387 | SLT- Single Lens Translucent, Speech and language therapist, Solid Logic Technology (electronics),Swing Landing Trainer (paratroops),Secondary lymphoid tissue,slv — Slovenian language (ISO 639-2 code),SLV — El Salvador (ISO 3166 trigram),SM[edit],sm — Samoan language (ISO 639-1 code),Sm — Samarium |
| 4388 | SM- Sado-Masochism, San Marino (ISO 3166 and FIPS 10-4 country code digram), Soldier's Manual, Submarine Minelayer (US Navy hull classification),SMA — Scan Mirror Assembly,SMART — Subject Matter And Requirements Team,SMASS — Small Main-Belt Asteroid Spectroscopic Survey,SMCT — Soldier's Manual of Common Tasks,SMD — Surface Mount Device,SMDR — Station Message Detail Recording,sme — Northern Sami language (ISO 639-2 code) |
| 4389 | SME- Scan Mirror Electronics,Subject Matter Expert |
| 4390 | SMX-many, including: Server Macro Expansion, Solaris MINIX, Spatial multiplexing, Sulfamethoxazole; see entry |
| 4391 | SMZ-many, including: Silver Mt. Zion, Sulfamethazine, Sulfamethoxazole; see entry,SN[edit],sn — Shona language (ISO 639-1 code),Sn — Tin (Latin Stannum) |
| 4392 | SN- Senegal (ISO 3166 digram),Singapore (FIPS 10-4 country code),Snow (METAR Code),SuperNova,Screen Name,sna — Shona language (ISO 639-2 code),SNAFU — “Situation Normal — All Fouled/Fucked Up”,SNAP — Supernova/Acceleration Probe,SNCB — Société nationale des chemins de fer de Belgique (French for “Belgian Railways National Society”, NMBS in Dutch),SNCF — Société nationale des chemins de fer français (French for “French Railways National Society”),snd — Sindhi language (ISO 639-2 code),SND — Standard Nomenclature Database,SNE — Synthetic Natural Environment,SNES — Super Nintendo Entertainment System,SNÉTA — Syndicat national pour l'étude des transports aériens (French for “Aerial transport Study National Syndicate”, 1919-1923),SNG — Satellite News Gathering (television) |
| 4393 | SNL- Saturday Night Live (television), Società Navigazione del Lago di Lugano,SNM — Special Nuclear Material,SNMP — Simple Network Management Protocol,SNOBOL — StriNg Oriented symBOlic Language,SNP — Single-nucleotide polymorphism |
| 4394 | SNR- SuperNova Remnant,Signal-to-Noise Ratio,SNRI — Serotonin-Norepinephrine Reuptake Inhibitor,SNS — Spallation Neutron Source,SNU — Solar Neutrino Unit,SO[edit],so — Somali language (ISO 639-1 code) |
| 4395 | SO- Shared Object (Unix),Sheriff's Office,Significant other, Somalia (ISO 3166 and FIPS 10-4 country code digram) |
| 4396 | SOA- service-oriented architecture, Society of Actuaries, State of the art |
| 4397 | SOAP- Simple Object Access Protocol,Supplemental Offer and Acceptance Program (U.S. medical residency matching) |
| 4398 | SOB- Son Of a Bitch,Same Old Bullshit,SOC — Sector Operations Centre,SOCCSKSARGEN — South Cotabato, Cotabato, Sultan Kudarat, Sarangani, General Santos City (a region in the Philippines; pronounced “sock-sar-gen”),SOCOM — (U.S.) Special Operations Command |
| 4399 | SoCon, Southern Conference (U.S. college sports) |
| 4400 | SOD-(i/a) School Of Dentistry,Statement Of Difference[s],Statement Of Direction,Statement Of Documentation,Statement Of Duty/Duties |
| 4401 | SOE- Secret Of Evermore,Special Operations Executive (WWII British organization),State Of Emissions (EW) |
| 4402 | SOF-(a/i) Special Operations Force,Status of Forces,SOFIA — Stratospheric Observatory For Infrared Astronomy |
| 4403 | SOGAT- Society of Graphical and Allied Trades,Former British printing union,SOHC — Single-OverHead-Cam engine,SOHO — Solar and Heliospheric Observatory,SOI — Signal Operating Instruction,SOL — Shit Out of Luck,SOLIS — Synoptic Optical Long-term Investigations of the Sun,som — Somali language (ISO 639-2 code) |
| 4404 | SOM- Simulation Object Model, Somalia (ISO 3166 trigram),Sonar — SOund Navigation And Ranging |
| 4405 | SOP- Standing/Standard Operating Procedure,State of Play |
| 4406 | SOR- State Of iness,Statement Of Requirements |
| 4407 | SOS- Somali shilling (ISO 4217 currency code),Save Our Souls,SOSTAR — Stand-Off Surveillance and Target Acquisition Radar,sot — Sotho language (ISO 639-2 code),SOUTHAG — Southern Army Group,SOUTHCOM — (U.S.) Southern Command,SOV — Single Occupant Vehicle,SOW — Statement Of Work,SOWHAT — RESNA Subcommittee on Wheelchairs and Transportation,SOX — Sarbanes-Oxley Act,SP[edit] |
| 4408 | Sp- Special,Spring tide (nautical charts), sine prole (Latin, “without offspring”) |
| 4409 | SP- Security Police,Self-Propelled,Shore Patrol, Spain (FIPS 10-4 country code), Start Point,Strong Point,spa — Spanish language (ISO 639-2 code),SPAAG — Self-Propelled Anti-Aircraft Gun,SPACECOM — (U.S.) Space Command,Spaser — Surface plasmon amplification by stimulated emission of radiation,SPC — Secretariat of the Pacific Community,SPCO — Single-Pole Change Over |
| 4410 | SPL- Scottish Premier League,Superior Parietal Lobule,Sound Pressure Level,SPM — Saint Pierre and Miquelon (ISO 3166 trigram),SPOD — (a/i) Sea Port of Debarkation,SPOE — (a/i) Sea Port of Embarkation,SPOT — Satellite pour l'observation de la Terre (French, “Satellite for Earth Observation”),SPQR — Senatus Populusque Romanus (Latin “The Senate and the People of Rome”),sps — sine prole superstite (Latin, “without surviving issue”),SPS — Standard Positioning Service (GPS),SPST — Single-Pole Single-Throw,SQ[edit],sq — Albanian language (ISO 639-1 code),SQ — Sound Quality,SQ — Standard Quality,sqi — Albanian language (ISO 639-2 code),SQL — (i/a) Structured Query Language (“seek-well”),SQUID — Superconducting QUantum Interference Device,SR[edit],sr — Serbian language (ISO 639-1 code),Sr — Strontium |
| 4411 | SR- Sound Reinforcement,Supply Route, Suriname (ISO 3166 digram), Sveriges Radio (Swedish Radio Ltd),SR — Sustained release of a drug |
| 4412 | SRAM- Scott (King), Ray (Day), SAM (Patterson) — founders of bicycle component manufacturer SRAM Corporation, Static Random Access Memory (“ess-ram”),SR-ATGW — Short-Range Anti-Tank Guided Weapon,SRB — Solid Rocket Booster,SRBM — Short-Range Ballistic Missile (cf. IRBM, ICBM),SRC — Scheduled Removal Component,srd — Sardinian language (ISO 639-2 code) |
| 4413 | SRD- Science Requirements Document, Surinam dollar (ISO 4217 currency code),SREL — Savannah River Ecology Laboratory |
| 4414 | SRG- SACEUR Rover Group,Special Republican Guard,SRGW — Short-Range Guided Weapon |
| 4415 | SRL- Savannah River Laboratory,Single Rocket Launcher,Survival Research Labs,SRM — Specified Risk Material,srp — Serbian language (ISO 639-2 code),SRS — Savannah River Site,SRSP — Science and Religion in Schools Project,SRTP — [Secure Real-time Transport Protocol],SS[edit],ss — Swati language (ISO 639-1 code) |
| 4416 | SSA- Cargo Submarine (US Navy hull classification), Social Security Administration (U.S.),Statistics South Africa,SSB — Single-sideband modulation,SSB — Sacramento Sustainable Business,SSBN — Nuclear-Powered Ballistic Missile Submarine (US Navy hull classification) |
| 4417 | SSC- Safe, Sane, Consensual (SM phrase),Secondary Somatosensory Cortex,Smaller-Scale Contingency,U.S. Army Soldiers System Center (Natick, Massachusetts),Superconducting Super Collider,SSCCATAGAPP — Singles, Seniors, Childless Couples, And Teens And Gays Against Parasitic Parents (fictional organization from The Simpsons) |
| 4418 | SSD- Solid-state drive, South Sudan (ISO 3166 trigram),SSDC — U.S. Space and Strategic Defense Command |
| 4419 | SSDD- Same Shit, Different Day,Single-Sided Double-Density (floppy disk) |
| 4420 | SSE- South South-East, Streaming SIMD Extensions,SSG — Guided Missile Submarine (retired US Navy hull classification),SSGN — Nuclear-Powered Guided Missile Submarine (US Navy hull classification),SSH — Saffir-Simpson Hurricane scale,SSK — Hunter-Killer Submarine (retired US Navy hull classification),SSKP — Single-Shot Kill Probability,SSL — Secure Sockets Layer,SSM — Surface-to-Surface (Guided) Missile |
| 4421 | SSN- Nuclear-Powered Attack Submarine (US Navy hull classification), SIM Serial Number,Social Security Number (U.S.),Socialist Solidarity Network,Subsystem number (SCCP, SS7),SSNW — Same Shit, New Wrapping,SSO — Submarine Oiler (retired US Navy hull classification),SSP — Submarine Transport (retired US Navy hull classification) |
| 4422 | SSR- Radar Picket Submarine (retired US Navy hull classification), Solid State Recorder |
| 4423 | SSRI- Selective Serotonin Reuptake Inhibitor,Social Systems Research Institute |
| 4424 | SSRN- Social Science Research Network, Nuclear-Powered Radar Picket Submarine (retired US Navy hull classification) |
| 4425 | SSS- Siding Spring Survey,Side Side Side (an acronym for remembering congruent triangles), Sigue Sigue Sputnik (band),S/SSM — Surface-to-Subsurface Missile |
| 4426 | SST- SuperSonic Transport, Training Submarine (US Navy hull classification),Saturated Suction Temperature (refrigeration cycles),SSTO — Single-Stage To Orbit,SSV — Soft-Skinned Vehicle (i.e., unarmoured),ssw — Swati language (ISO 639-2 code),SSW — South South-West,ST[edit],st — Sotho language (ISO 639-1 code) |
| 4427 | ST- Saint Lucia (FIPS 10-4 country code),São Tomé and Príncipe (ISO 3166 digram) |
| 4428 | STA- Scheduled Time of Arrival,Surveillance and Target Acquisition,STAG — (U.S.) Strategy and Tactics Group,STAGE — Scenario Toolkit And Generation Environment,STANAG — (NATO) Standardisation Agreement |
| 4429 | STAR- Scientific and Technical Aerospace Reports (NASA),Simulation of Tactical Alternative Responses,Special Threat Analysis and Recognition |
| 4430 | STAT- Signal Transducers and Activators of Transcription (cell biology),Special Tertiary Admissions Test (Australia) |
| 4431 | STB,Surface Transportation Board[2] |
| 4432 | STD- São Tomé and Príncipe dobra (ISO 4217 currency code), Sexually Transmitted Disease,STDM — Statistical Time Division Multiplexing,STENTOR — Satellite de télécommunications pour expérimenter de nouvelles technologies en orbite (French, “Orbital New Technology Experimental Telecommunications Satellite”) |
| 4433 | STFU- Southern Tenant Farmers Union,Stuff You[citation needed],STH — Sonic The Hedgehog |
| 4434 | STI- Sexually Transmitted Infection,Subaru Tecnica International,STK — Satellite Tool Kit,STM — Short Term Memory,STOL — Short Take-Off and Landing,STOVL — Short Take-Off and Vertical Landing |
| 4435 | STP- São Tomé and Príncipe (ISO 3166 trigram), Standard Temperature and Pressure,STR — Short Tandem Repeat (DNA analysis),STRATCOM — United States Strategic Command |
| 4436 | STRICOM- U.S. Army Simulation, Training & Instrumentation Command (1992-),Strike Command (1962-1971),STRIVE — Synthetic Tactical Real-time Interactive Virtual Environment,STSM — Senior Technical Staff Member,Stuka — Sturzkampfflugzeug (German WWII dive bomber),SU[edit],su — Sundanese language (ISO 639-1 code) |
| 4437 | SU- Soviet Union (ISO 3166 digram; obsolete 1992),Sudan (FIPS 10-4 country code),SUB — Student Union Building,SuD — Subject under Discussion,SUDC — Swedish United Dawah Center, a salafist Islamic organisation in Sweden |
| 4438 | SUI- Sonic user interface, Switzerland (IOC and FIFA trigram, but not ISO 3166),SUK — Start Up Kit,sun — Sundanese language (ISO 639-2 code),SUN — ,Soviet Union (ISO 3166 trigram; obsolete 1992),Stanford University Network that led to Sun Microsystems,SUNY — State University of New York (usually pronounced “sue-knee”),SUR — Suriname (ISO 3166 trigram),SURTASS — Surveillance Towed Array Sensor System,SUSAT — Sight Unit Small Arms, Trilux,SUV — Sport Utility Vehicle,SV[edit],sv — Swedish language (ISO 639-1 code) |
| 4439 | SV- El Salvador (ISO 3166 digram), Sportverein (German for “Sport Association”, as in Hamburger SV and SV Werder Bremen),SVC — Secondary Visual Cortex,SvD — Svenska Dagbladet (Swedish newspaper) |
| 4440 | SW- South-West ordinal direction,Sweden (FIPS 10-4 country code), Shortwave,swa — Swahili language (ISO 639-2 code) |
| 4441 | SWA-(i/a) Secure Web Access,South-West Asia,SWAC — Southwestern Athletic Conference,SWALK — Sealed With A Loving Kiss,SWAN — System for Wearable Audio Navigation,SWAP — Surface Waters Acidification Programme,SWAPO — South-West Africa People's Organisation,SWAT — Special Weapons And Tactics,swe — Swedish language (ISO 639-2 code),SWE — Sweden (ISO 3166 trigram) |
| 4442 | SWF- Shockwave Flash file (“swiff”),Single White Female |
| 4443 | SWG- Surface Warfare Group,Symbology Working Group,SWHR — Society for Women's Health Research,SWIG — Simplified Wrapper and Interface Generator,SWIR — (a/i) Short Wave InfraRed (“ss-why-are” or “swhirr”) |
| 4444 | SWLABR- She Was Like A Bearded Rainbow,Cream song (Bruce, Clapton and Baker),SWORD — Subjective WORkload Dominance,SWORDS — Special Weapons Observation Reconnaissance Detection System,SWOT — Strengths, Weaknesses, Opportunities, Threats (mnemonic) |
| 4445 | SWP- Special Working Party (“swipp”),Systematic Westing Plan (a plan of periodic westing of shares or mutual funds worth a fixed amount of money),Skill With Prizes (UK pub quiz machines — quality titles include: Pub Quiz, Quiz City, Frog in a Liquidizer, Who Wants To Win a Tenner?),SWT — Sea Water Tank,SWV — Sisters With Voices (American female R&B vocal group),SWZ — Swaziland (ISO 3166 trigram),SX[edit],SX — Sonic X |
| 4446 | T, Tera,Tesla,Tritium |
| 4447 | ta, Tamil language (ISO 639-1 code) |
| 4448 | Ta, Tantalum |
| 4449 | TA, Target Acquisition,Teaching Assistant, Tera-ampere, Territorial Army (UK), Tristan da Cunha (ISO 3166 digram) |
| 4450 | TAA, Transparency Anti-Aliasing, Trans Australia Airlines |
| 4451 | TAACOM, U.S. Theater Army Area Command |
| 4452 | TAADCOORD, Theatre Army Air Defence Co-ordinator |
| 4453 | TAAR, Trace Amine-Associated Receptor |
| 4454 | TAC, U.S. Tactical Air Command (1946-1992) |
| 4455 | TACAN, Tactical Air Navigation |
| 4456 | TACC, Tactical Air Control Centre,(USAF) Tanker Airlift Control Center |
| 4457 | TACCO, Tactical Coordinator |
| 4458 | TACCSF, U.S. Theater Aerospace Command & Control Simulation Facility |
| 4459 | TACDAR, Tactical Detection And Reporting |
| 4460 | TACP, Tactical Air Control Party,Technology Applications Certification Program |
| 4461 | TACSOP, Tactical SOP (Standing Operating Procedure) |
| 4462 | TADIL, Tactical Digital Information Link |
| 4463 | TADSS, Training Aids, Devices, Simulators, and Simulations |
| 4464 | tah, Tahitian language (ISO 639-2 code) |
| 4465 | TAI, Target[ed] Area of Interest |
| 4466 | TAJ, Tom and Jerry |
| 4467 | TAJT, Tom and Jerry Tales |
| 4468 | TALES, Technical Advice and Lexicon for Enabling Simulation |
| 4469 | tam, Tamil language (ISO 639-2 code) |
| 4470 | TAN, Tanzania (IOC and FIFA trigram, but not ISO 3166) |
| 4471 | TANJ, There Ain't No Justice (used as expletive in the Ringworld novels) |
| 4472 | TANP, Terrain-Aware Network Planner |
| 4473 | TANSTAAFL, There Ain't No Such Thing As A Free Lunch (coined by author Robert A. Heinlein in his The Moon Is a Harsh Mistress) |
| 4474 | TAPPS, Texas Association of Private and Parochial Schools |
| 4475 | TARDIS, Time And Relative Dimension In Space (from Doctor Who) |
| 4476 | TARP, Transparency Accountability Rights for Parents (coined by Karen Plumridge, founder of Black Ribbon Gold Heart) |
| 4477 | TAS,Tasmania (postal symbol) |
| 4478 | TASER, Thomas A. Swift's Electric Rifle |
| 4479 | TASM, Tactical Air-to-Surface Missile |
| 4480 | tat, Tatar language (ISO 639-2 code) |
| 4481 | TAT, Tourism Authority of Thailand |
| 4482 | TATP, TriAcetone TriPeroxide |
| 4483 | TATT, Tired All The Time (medical diagnosis in-joke) |
| 4484 | Tb, Terbium |
| 4485 | TB, Tuberculosis |
| 4486 | TBA, to be announced |
| 4487 | TBBPA, TetraBromoBisPhenol-A |
| 4488 | TBC, to be confirmed, to be continued |
| 4489 | TBD, Torpedo Boat Destroyer |
| 4490 | TBF,to be fair |
| 4491 | TBGRI, Tropical Botanic Garden and Research Institute, India |
| 4492 | TBH, To Be Honest |
| 4493 | TBL, Turkish Basketball League |
| 4494 | TBM, Tactical Ballistic Missile,Theatre Ballistic Missile |
| 4495 | TBS, Turner Broadcasting System |
| 4496 | TBT, Tributyltin |
| 4497 | Tc, Technetium |
| 4498 | TC, Teracoulomb,Turks and Caicos (ISO 3166 digram),United Arab Emirates (FIPS 10-4 country code; from Trucial Coast States) |
| 4499 | TCA, Transformational Communications Architecture, Turks and Caicos (ISO 3166 trigram) |
| 4500 | TCAS, Traffic Collision Avoidance System |
| 4501 | TCAA, Top Counter-Assault Agents |
| 4502 | TCD, Chad (ISO 3166 trigram) |
| 4503 | TCG, Trusted Computing Group,Türkiye Cumhuriyeti Gemisi |
| 4504 | TCHD, Truck Cargo Heavy Duty |
| 4505 | TCL, Tool Command Language |
| 4506 | TCM, Turner Classic Movies |
| 4507 | TCP, Traffic Control Point,Transmission Control Protocol,Trichlorophenol |
| 4508 | TCU, Texas Christian University |
| 4509 | TCWMS, Tele-Center Workforce Management System |
| 4510 | TCW, Tasty Coma Wife |
| 4511 | TD- Territorial Decoration,Toon Disney,Toronto-Dominion (Bank); see also its U.S. subsidiary, TD Bank, N.A.,Touchdown,Tower Defence A game type, involves defending waves of enemies using tower |
| 4512 | TDA,The Disney Afternoon |
| 4513 | TDL, Tactical Data Link |
| 4514 | TDM, Time-Division Multiplexing |
| 4515 | TDMA, Time Division Multiple Access |
| 4516 | TDP, Technology Demonstration Programme |
| 4517 | TDRS, Tracking Data and Relay Satellite |
| 4518 | te, Telugu language (ISO 639-1 code) |
| 4519 | Te, Tellurium |
| 4520 | TE, Tactical Exploitation, Testosterone to Epitestosterone ratio, Tight end (American football; position generally not used in modern Canadian football) |
| 4521 | TEAL, Tasman Empire Airways Limited |
| 4522 | Team, Together everyone achieves more |
| 4523 | TEAMS, The East African Marine System (fiber optic cable) |
| 4524 | TED, Technology Entertainment Design prize |
| 4525 | TEETH, Tried Everything Else, Try Homeopathy (medical diagnosis in-joke) |
| 4526 | tel, Telugu language (ISO 639-2 code) |
| 4527 | TEL,(a/i) Transporter, Erector and Launcher |
| 4528 | TELAR, Transporter, Erector, Launcher And Radar |
| 4529 | TENCAP, Tactical Exploitation of National Capabilities |
| 4530 | TERS, Tactical Event Reporting System |
| 4531 | TES, Tactical Event System |
| 4532 | TEST, Thesaurus of Engineering and Scientific Terms |
| 4533 | TEU, Twenty-foot equivalent unit (cargo capacity) |
| 4534 | TeVeS, Tensor Vector Scalar theory |
| 4535 | TF - |
| 4536 | TFMPP, Trifluorophenylmethylpiperazine |
| 4537 | TFR, Total Fertility Rate |
| 4538 | TFT, Thin-Film Transistor |
| 4539 | tg, Tajik language (ISO 639-1 code) |
| 4540 | Tg, Teragram |
| 4541 | TG, Togo (ISO 3166 digram) |
| 4542 | TGA, Tonga (IOC and FIFA trigram, but not ISO 3166) |
| 4543 | TGIF, Thank God It's Friday, Toes Go In First |
| 4544 | tgk, Tajik language (ISO 639-2 code) |
| 4545 | tgl, Tagalog language (ISO 639-2 code) |
| 4546 | TGO, Togo (ISO 3166 trigram) |
| 4547 | TGT- Target (also the ticker symbol for Target Corporation), Ticket Granting Ticket (computer security), Tyrese, Ginuwine, Tank,see TGT (group) for their collaboration |
| 4548 | th, Thai language (ISO 639-1 code) |
| 4549 | Th, Thorium |
| 4550 | TH, Terahenry,Thailand (ISO 3166 and FIPS 10-4 country code digram) |
| 4551 | tha, Thai language (ISO 639-2 code) |
| 4552 | THA, Thailand (ISO 3166 trigram) |
| 4553 | THAAD,(a/i) Terminal High Altitude Area Defence |
| 4554 | THB, Thai baht (ISO 4217 currency code) |
| 4555 | THEGENTRY, The High-End Group of Earth's New Technologies Research Yield |
| 4556 | THEL, Tactical High Energy Laser ACTD |
| 4557 | THG, Tetrahydrogestrinone |
| 4558 | ti, Tigrinya language (ISO 639-1 code) |
| 4559 | Ti, Tebi,Titanium |
| 4560 | TI, Tajikistan (FIPS 10-4 country code), Thermal Imaging,Threat Identification,Training Instructor,Texas Instruments |
| 4561 | TIA, Total Information Awareness initiative |
| 4562 | TIA, Transient Ischemic Attack |
| 4563 | TIALD, Thermal Imaging and Airborne Laser Designation |
| 4564 | TIBS, Tactical Information Broadcast System |
| 4565 | TIC, Troops In Contact |
| 4566 | TIGERS, Topologically Integrated Geographic Encoding and Referencing System |
| 4567 | TIM, Technical Information Memorandum,Technical Interchange Meeting,Toxic Industrial Material,Telecom Italia Mobile |
| 4568 | TIMS, Tactical Internet Management System,The Institute of Management Sciences,The International Molinological Society,Thermal Infrared Multispectral Scanner,Thermal Ionization Mass Spectrometry,Travel Information Management Services,Tuberculosis Information Management System |
| 4569 | TINC, There Is No Cabal |
| 4570 | TINY,That Is, Not You (internet slang) |
| 4571 | TIP, Thermal Identification Panel |
| 4572 | tir, Tigrinya language (ISO 639-2 code) |
| 4573 | tits,Toes in the Sand |
| 4574 | TJ, Tajikistan (ISO 3166 digram),Terajoule |
| 4575 | TJD, Truncated Julian Day |
| 4576 | TJK, Tajikistan (ISO 3166 trigram) |
| 4577 | TJS, Tajik somoni (ISO 4217 currency code) |
| 4578 | tk, Turkmen language (ISO 639-1 code) |
| 4579 | TK, Terakelvin,Tokelau (ISO 3166 digram) |
| 4580 | TKBL, Türkiye 1. Kadınlar Basketbol Ligi, the Turkish-language name of the Turkish Women's Basketball League |
| 4581 | TKL, Tokelau (ISO 3166 trigram) |
| 4582 | TKM, Turkmenistan (ISO 3166 trigram) |
| 4583 | tl, Tagalog language (ISO 639-1 code) |
| 4584 | Tl, Thallium |
| 4585 | TLPM,T1 Line Performance Monitor |
| 4586 | TL- Team Leader, Teralitre,Timor-Leste (ISO 3166 digram), ThermoLuminescence,TL;DR ,Too long; didn’t read. |
| 4587 | TLATOJL,The Life and Times of Juniper Lee |
| 4588 | TLA, Three-Letter Abbreviation/Acronym |
| 4589 | TLAM, Tomahawk Land Attack Missile |
| 4590 | TLAR- That Looks About Right (chat shorthand),Transporter-Launcher And Radar |
| 4591 | TLC- Tender Loving Care,The Learning Channel (now known strictly by the initials),Thin Layer Chromatography,T-Boz, Lefteye, Chilli,Tables, Ladders, and Chairs (type of professional wrestling match) |
| 4592 | TLD- Thermoluminescent Dosimeter,Top-Level Domain |
| 4593 | TLM- Traditional Latin Mass,Tridentine Latin Mass,Transaction Lifecycle Management |
| 4594 | TLS- Timor-Leste (ISO 3166 trigram), Times Literary Supplement,TM[edit] |
| 4595 | Tm- Terametre |
| 4596 | Thulium- |
| 4597 | TM- Technical Manual,Theatre Missile,Thematic Mapper, trademark (often written in small superscript type: TM or ™), Turing machine, Turkmenistan (ISO 3166 digram) Tympanic Membrane |
| 4598 | TMAP,(a/i) Texas Medication Algorithm Project |
| 4599 | TMC, The Movie Channel |
| 4600 | TMD, Theatre Missile Defence |
| 4601 | TMDK, The Mighty Don't Kneel (Australian professional wrestling stable also active in Japan) |
| 4602 | TMI, Too Much Information |
| 4603 | TMJ, TemporoMandibular Joint (syndrome) |
| 4604 | TMM, Turkmen manat (ISO 4217 currency code) |
| 4605 | TMNT, Teenage Mutant Ninja Turtles |
| 4606 | TMO- Table Mountain Observatory,Television match official (rugby union) |
| 4607 | TMP- East Timor (ISO 3166 trigram; obsolete 2002), Temporary |
| 4608 | TMPG, Transparent Multi-Platform Gateway |
| 4609 | TMR, Twin Main Rotors (helicopter type) |
| 4610 | TMS, Transcranial Magnetic Stimulation |
| 4611 | TMT, Thirty Meter Telescope |
| 4612 | TMTOWTDI, There's Than One Way To Do It (from Perl) |
| 4613 | tn, Tswana language (ISO 639-1 code) |
| 4614 | TN- Tennessee (postal symbol),Teranewton,Tonga (FIPS 10-4 country code),Tunisia (ISO 3166 digram) |
| 4615 | TNA, Total Nonstop Action Wrestling |
| 4616 | TND, Tunisian dinar (ISO 4217 currency code) |
| 4617 | TNO, Trans-Neptunian Object |
| 4618 | TNT- Thomas Nationwide Transport, an Australian company that was one of the predecessors to the former TNT N.V. and the current TNT Express, TriNitroToluene,(a/i) Turner Network Television,TO[edit] |
| 4619 | to, Tongan language (ISO 639-1 code) |
| 4620 | TO- Togo (FIPS 10-4 country code),Tonga (ISO 3166 digram) |
| 4621 | TOA- Table Of Authorities,Total Obligation Authority (accounting) |
| 4622 | TOAD- Temporary, Obsolete, Abandoned, or Derelict site (urbanism),Towed Optical Assessment Device |
| 4623 | TOBS, Time of OBServation |
| 4624 | TOC-(a/i) Table Of Contents,Tactical Operations Centre, Temporo-Occipital transition Cortex,Top of Concrete,To-do, To-do-List |
| 4625 | TOG, Togo (IOC and FIFA trigram, but not ISO 3166) |
| 4626 | TOGS, Thermal Observation Gunnery Sight |
| 4627 | TOMS, Total Ozone Mapping Spectrometer (satellite instrument) |
| 4628 | ton, Tongan language (ISO 639-2 code) |
| 4629 | TON, Tonga (ISO 3166 trigram) |
| 4630 | TOP, Tongan pa'anga (ISO 4217 currency code) |
| 4631 | TOS- Tape Operating System,Terms of service,The Original Series, used to distinguish the first Star Trek TV series from other parts of the media franchise,Tramiel Operating System |
| 4632 | TOT, Time On Target |
| 4633 | TOW, Tube-launched, Optically tracked, Wire-guided (anti-tank missile) |
| 4634 | TP- East Timor (ISO 3166 digram; obsolete 2002),São Tomé and Príncipe (FIPS 10-4 country code), Training Practice,Trident Ploughshares |
| 4635 | TPE, Chinese Taipei (IOC and FIFA trigram for the country also known as Taiwan) |
| 4636 | TPI, The point is |
| 4637 | TPO, Thrombopoietin |
| 4638 | TPS, The Pennington School |
| 4639 | TPTB, The Powers That Be (often used to refer to the people responsible for the content of TV series or movies) |
| 4640 | TQ, Top Qualifier (similar to Pole Position in car racing) |
| 4641 | tr, Turkish language (ISO 639-1 code) |
| 4642 | TR, Turkey (ISO 3166 digram) |
| 4643 | TRA, Technology iness Assessment |
| 4644 | TRAC, (U.S. Army) TRADOC Analysis Center |
| 4645 | TRACON, Terminal Radar Approach Control |
| 4646 | TRADOC, (U.S. Army) Training and Doctrine Command |
| 4647 | TRAIN, Tourist Railway Association, Inc. |
| 4648 | TRANSCOM, U.S. Transportation Command |
| 4649 | TRAP, Tactical Receive equipment and related Applications |
| 4650 | TRASANA, TRADOC Systems Analysis Agency |
| 4651 | TRD, Towed Radar Decoy |
| 4652 | TRIGAT, Third Generation Antitank (missile) |
| 4653 | TRL, Technology readiness level |
| 4654 | Trp, Troop |
| 4655 | TRP, Target Reference Point, Time of Reporting |
| 4656 | TRU, Transuranic |
| 4657 | TRUEX, Training in Urban Environment Exercise |
| 4658 | TRW, Thompson Ramo Wooldridge Inc. |
| 4659 | TRY, Turkish lira (ISO 4217 currency code) |
| 4660 | ts, Tsonga language (ISO 639-1 code) |
| 4661 | Ts, Terasecond |
| 4662 | TSA- Theatre Storage Area,Time Slot Allocation,Transportation Security Administration,The Salvation Army |
| 4663 | TSEC, Transmission Security Encryption Code |
| 4664 | TSL, Transportation Security Laboratory |
| 4665 | tsn, Tswana language (ISO 639-2 code) |
| 4666 | TSN- The Sporting News (historic name of the periodical now known as Sporting News),The Sports Network |
| 4667 | tso, Tsonga language (ISO 639-2 code) |
| 4668 | TSO- The Stationery Office (was HMSO until 1996),(U.S.) TRICARE Support Office, Trans-Siberian Orchestra (band) |
| 4669 | TSOP- Tactical Standing Operation Procedure,The Sound of Philadelphia (classic 1970s R&B instrumental) |
| 4670 | TSR,many, including Terminate and Stay Resident; see entry |
| 4671 | TSSIA, The Subject Says It All |
| 4672 | tt, Tatar language (ISO 639-1 code) |
| 4673 | TT- Teratesla, Terrestrial Time,Tourist Trophy (Motorcycle sport), Trinidad and Tobago (ISO 3166 digram) |
| 4674 | TTCT,Torrance Tests of Creative Thinking |
| 4675 | TTD, Trinidad and Tobago dollar (ISO 4217 currency code) |
| 4676 | TTO, Trinidad and Tobago (ISO 3166 trigram) |
| 4677 | TTFN, Ta Ta For Now |
| 4678 | TTL- Tax, Title, License, Through-the-lens (photography),Time 'till live,Time to live,Transistor-transistor logic |
| 4679 | TTP- Tactics, Techniques, and Procedures,Thrombotic thrombocytopenic purpura,Trailer Transfer Point |
| 4680 | TTTEAF,Thomas the Tank Engine and Friends |
| 4681 | TTY, TeleTYpewriter (Printer) |
| 4682 | TTYL, To You Later (Internet slang) |
| 4683 | TTZ, Tetrazolium |
| 4684 | TUC, Trades Union Congress |
| 4685 | TUG, TeX Users Group |
| 4686 | TUI,(a/i) Text-based user interface (cf. CLI), among other uses |
| 4687 | tuk, Turkmen language (ISO 639-2 code) |
| 4688 | TUN, Tunisia (ISO 3166 trigram) |
| 4689 | TUNS, Technical University of Nova Scotia |
| 4690 | Tur, Turkish language (ISO 639-2 code) |
| 4691 | TUR, Turkey (ISO 3166 trigram) |
| 4692 | TUSK, Tank Urban Survival Kit |
| 4693 | TUV, Tuvalu (ISO 3166 trigram) |
| 4694 | Tv, Time value, a designation seen on some camera dials for shutter priority mode |
| 4695 | TV- Television, Teravolt, Transvestite, Tuvalu (ISO 3166 and FIPS 10-4 country code digram) |
| 4696 | TVA, Tennessee Valley Authority |
| 4697 | TVG-(p/i) Television Games (Network), Tick, Very Good, Often used by School Teachers when marking homework etc. (Tick VG)[1][2] |
| 4698 | TVR, TreVor (Wilkinson) Racing |
| 4699 | TVS, Tornado vortex signature |
| 4700 | tw, Twi language (ISO 639-1 code) |
| 4701 | TW, Republic of China (Taiwan) (ISO 3166 and FIPS 10-4 country code digram),Terawatt |
| 4702 | TWAIN, Technology Without An Interesting Name |
| 4703 | TWD, Taiwan dollar (ISO 4217 currency code) |
| 4704 | TWE, Trans World Entertainment |
| 4705 | twi, Twi language (ISO 639-2 code) |
| 4706 | TWI, The Welding Institute |
| 4707 | TWN, Republic of China (Taiwan) (ISO 3166 trigram) |
| 4708 | TWP, Technical Working Paper |
| 4709 | TWS, Thermal Weapon Sight,Track While Scan |
| 4710 | TWIP, Take What Insurance Pays,When a surgeon agrees to accept a lower payment than he ordinarily would for a procedure and not charge the patient the difference |
| 4711 | TX, Texas (postal symbol),Transmit,Turkmenistan (FIPS 10-4 country code) |
| 4712 | TXV,Thermostatic Expansion Valve |
| 4713 | ty, Tahitian language (ISO 639-1 code) |
| 4714 | TYT,Take Your Time,Internet chat abbreviation |
| 4715 | TZ, Tanzania (ISO 3166 and FIPS 10-4 country code digram) |
| 4716 | TZA, Tanzania (ISO 3166 trigram) |
| 4717 | TZC, Tetrazolium chloride |
| 4718 | TZS, Tanzanian shilling (ISO 4217 currency code) |
| 4719 | U, Uranium |
| 4720 | UA, Ukraine (ISO 3166 digram) Unit of Action |
| 4721 | UAAP, University Athletic Association of the Philippines |
| 4722 | UAB, University of Alabama at Birmingham |
| 4723 | UAE,(i/s) United Arab Emirates (also IOC and FIFA trigram, but not ISO 3166) |
| 4724 | UAH- Ukrainian hryvnia (ISO 4217 currency code), University of Alabama in Huntsville |
| 4725 | UAV- Unmanned Aerial Vehicle,Unprotected Anal and Vaginal sex,UB[edit] |
| 4726 | UBC, United Baptist Church,University of British Columbia |
| 4727 | UBIGEO, Ubicación Geografica (Spanish for Geographical Location) |
| 4728 | UBS, Unbundled Bitstream Services,United Bank of Switzerland,United Banque Suisse |
| 4729 | UCBSA, United Cricket Board of South Africa |
| 4730 | UCF, University of Central Florida |
| 4731 | UCLA, University of California, Los Angeles |
| 4732 | UCLES, University of Cambridge Local Examinations Syndicate |
| 4733 | UCR, University of Costa Rica,University of California, Riverside |
| 4734 | UCS, Union of Concerned Scientists |
| 4735 | UCSB, University of California, Santa Barbara |
| 4736 | UCSD, University of California, San Diego |
| 4737 | UDAS, Uppsala-DLR Asteroid Survey |
| 4738 | UDDI, Universal Description, Discovery and Integration |
| 4739 | UDP, User Datagram Protocol |
| 4740 | UDT, Underwater Demolition Team |
| 4741 | UDTS, Uppsala-DLR Trojan Survey |
| 4742 | UE, Unit of Employment |
| 4743 | UEFA, Union of European Football Associations |
| 4744 | UEFI,(i/a) Unified Extensible Firmware Interface |
| 4745 | UESAC, Uppsala-ESO Survey of Asteroids and Comets |
| 4746 | UFC, Ultimate Fighting Championship |
| 4747 | UFO, Unidentified Flying Object,United Farmers of Ontario |
| 4748 | ug, Uyghur language (ISO 639-1 code) |
| 4749 | UG, Uganda (ISO 3166 and FIPS 10-4 country code digram) |
| 4750 | UGA, Uganda (ISO 3166 trigram) |
| 4751 | UGV, Unmanned Ground Vehicle |
| 4752 | UGX, Ugandan shilling (ISO 4217 currency code) |
| 4753 | UHF, Ultra High Frequency |
| 4754 | UHMW, Ultra-High Molecular Weight |
| 4755 | UHRB, Ultra-High Resolution Building (simulation) |
| 4756 | UIC, University of Illinois at Chicago |
| 4757 | UID, User ID |
| 4758 | uig, Uyghur language (ISO 639-2 code) |
| 4759 | UIL, University Interscholastic League (governing body for most interscholastic activities, notably sports, in Texas public high schools) |
| 4760 | UIUC, University of Illinois at Urbana-Champaign |
| 4761 | UJTL, Universal Joint Task List |
| 4762 | uk, Ukrainian language (ISO 639-1 code) |
| 4763 | UK, United Kingdom (also FIPS 10-4 country code),University of Kentucky |
| 4764 | UKIP, United Kingdom Independence Party |
| 4765 | ukr, Ukrainian language (ISO 639-2 code) |
| 4766 | UKR, Ukraine (ISO 3166 trigram) |
| 4767 | UL, Underwriters Laboratories |
| 4768 | ULF, Ultra Low Frequency |
| 4769 | UM, U.S. Minor Outlying Islands (postal symbol; ISO 3166 digram) |
| 4770 | UMBC, University of Maryland, Baltimore County |
| 4771 | UMC, United Microelectronics Corporation,University of Missouri-Columbia |
| 4772 | UMCP, Unit Maintenance Collection Point |
| 4773 | UMES, University of Maryland Eastern Shore |
| 4774 | UMI, U.S. Minor Outlying Islands (ISO 3166 trigram) |
| 4775 | UMIST, University of Manchester Institute of Science and Technology |
| 4776 | UML, Unified Marxist-Leninist Communist Party of Nepal,Unified Modeling Language,University of Massachusetts Lowell,User-Mode Linux |
| 4777 | UMTS, Universal Mobile Telecommunications System |
| 4778 | UN, United Nations |
| 4779 | UNABOM, University and airline bomber (FBI case name) |
| 4780 | UNAIDS,(i/a) Joint United Nations Programme on HIV/AIDS |
| 4781 | UNAMSIL, United Nations Mission in Sierra Leone |
| 4782 | UNCF, United Negro College Fund |
| 4783 | UNCLOS, United Nations Convention on the Law of the Sea |
| 4784 | UNCSGN, United Nations Conference on the Standardization of Geographical Names |
| 4785 | UNCTAD, United Nations Conference on Trade and Development |
| 4786 | UNDCP, United Nations Drug Control Programme |
| 4787 | UNDE,(i/a) Union of National Defence Employees (Canada) |
| 4788 | UNDP, United Nations Development Programme |
| 4789 | UNEP, United Nations Environment Programme |
| 4790 | UNESCO, United Nations Educational, Scientific and Cultural Organization |
| 4791 | UNFCCC, United Nations Framework Convention on Climate Change |
| 4792 | UNFICYP, United Nations Peacekeeping Force in Cyprus |
| 4793 | UNGEGN, United Nations Group of Experts on Geographical Names |
| 4794 | UNHCR, United Nations High Commission (er) for Refugees |
| 4795 | UNICEF, United Nations Children's Fund (originally the United Nations International Children's Emergency Fund) |
| 4796 | UNICRI, United Nations Interregional Crime and Justice Research Institute |
| 4797 | UNIDO, United Nations Industrial Development Organization |
| 4798 | UNIFEM, United Nations Development Fund for Women (from the French Fonds de développement des Nations unies pour la femme) |
| 4799 | UNIS, University of Surrey, Guildford, England |
| 4800 | UNLV, University of Nevada, Las Vegas |
| 4801 | UNMIK, United Nations Interim Administration Mission in Kosovo |
| 4802 | UNMOVIC, United Nations Monitoring, Verification and Inspection Commission |
| 4803 | UNOSOM, United Nations Operations in Somalia |
| 4804 | UNPROFOR, United Nations Protection Force (in former Yugoslavia) |
| 4805 | UNRISD, United Nations Research Institute for Social Development |
| 4806 | UNSM, Union of Nova Scotian Municipalities |
| 4807 | UNTAC, United Nations Transitional Authority in Cambodia |
| 4808 | UNTAET,(i/a) United Nations Transitional Administration in East Timor |
| 4809 | UNU, United Nations University |
| 4810 | UP- Ukraine (FIPS 10-4 country code),Union Pacific Railroad (AAR reporting mark), Upper Peninsula (of Michigan),Uttar Pradesh |
| 4811 | UPC- United Pentecostal Church, Universal Product Code |
| 4812 | UPdM, Università Popolare della Multimedialità |
| 4813 | UPDM- Uganda People's Democratic Movement,Unified Modeling Language Profile for DoDAF and MoDAF,Unité de psychiatrie du développement mental,Universal Pattern Decomposition Method,Unix Power Device Management,Unpressurized Docking Mast,Urban Planning, Design and Management |
| 4814 | UPI, United Press International |
| 4815 | UPN, United Paramount Network |
| 4816 | UPS- Uninterruptible Power Supply,United Parcel Service |
| 4817 | UPTN- Universal Personal Telecommunications Number,Upper Peninsula Telehealth Network |
| 4818 | UPU, Universal Postal Union |
| 4819 | ur, Urdu language (ISO 639-1 code) |
| 4820 | UR, Soviet Union (NATO country code, obsolete 1992) |
| 4821 | URBSFA, Union royale belge des sociétés de football association (French for Royal Belgian Football Association) |
| 4822 | urd, Urdu language (ISO 639-2 code) |
| 4823 | URD, User Requirements Document |
| 4824 | URI- Uniform Resource Identifier,University of Rhode Island |
| 4825 | URU, Uruguay (IOC and FIFA trigram, but not ISO 3166) |
| 4826 | URY, Uruguay (ISO 3166 trigram) |
| 4827 | US, United States (also ISO 3166 and FIPS 10-4 country code digram) |
| 4828 | USA- United States of America (also ISO 3166 trigram),United States Army |
| 4829 | USAADAC, U.S. Army Air Defense Artillery Center, Fort Bliss, Texas |
| 4830 | USAARMC, U.S. Army ARMor Center, Fort Knox, Kentucky |
| 4831 | USAAVNC, U.S. Army AViatioN Center, Fort Rucker, Alabama |
| 4832 | USAF, United States Air Force |
| 4833 | USAFSPC, U.S. Air Force Space Command |
| 4834 | USAIC- U.S. Army Infantry Center,U.S. Army Intelligence Center |
| 4835 | USAID,(a/i) United States Agency for International Development |
| 4836 | USAP- Union Sportive des Arlequins Perpignanais, United States Antarctic Program |
| 4837 | USAPATRIOT, Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism |
| 4838 | USAREUR, United States Army Europe |
| 4839 | USB, Universal Serial Bus |
| 4840 | USC- United States Code,University of South Carolina,University of Southern California |
| 4841 | USCG, United States Coast Guard |
| 4842 | USCINCSPACE, United States Commander in Chief, Space Command |
| 4843 | USD- (U.S.) Under-Secretary of Defense* USD(A&T), (U.S.) Under-Secretary of Defense (Acquisition and Technology), United States dollar (ISO 4217 currency code),USD(AT&L), (U.S.) Under-Secretary of Defense for Acquisition, Technology, and Logistics,USD(C), (U.S.) Under-Secretary of Defense (Comptroller) |
| 4844 | USDA, United States Department of Agriculture |
| 4845 | USDI, United States Department of the Interior |
| 4846 | USDOE, United States Department of Energy |
| 4847 | USDRE, (U.S.) Under-Secretary of Defense for Research and Engineering (1978-1986) |
| 4848 | USEC, United States Enrichment Corporation |
| 4849 | USFL, United States Football League |
| 4850 | USFWS, United States Fish and Wildlife Service |
| 4851 | USGS, United States Geological Survey |
| 4852 | USIA, United States Information Agency |
| 4853 | USJFCOM, United States Joint Forces Command |
| 4854 | USL- United Soccer League, a third-level U.S. league. Not to be confused with an earlier league of the same name.,United Soccer Leagues, the organization that operates the above league, plus several other lower-level leagues,University of Southwestern Louisiana, a former name for the school now known as the University of Louisiana at Lafayette |
| 4855 | USMC, United States Marine Corps |
| 4856 | USMNT, United States men's national (soccer) team |
| 4857 | USN, United States Navy |
| 4858 | USNA, United States National Arboretum,United States Naval Academy |
| 4859 | USNB, United States Naval Base |
| 4860 | USNG, United States National Grid |
| 4861 | USNH, United States Naval Hospital |
| 4862 | USNI, United States Naval Institute |
| 4863 | USNO, U.S. Naval Observatory |
| 4864 | USNOFS, United States Naval Observatory Flagstaff Station |
| 4865 | USNP, United States Newspaper Program |
| 4866 | USNR, United States Navy Reserve |
| 4867 | USNS, United States Naval Ship |
| 4868 | USNZ, University Sport New Zealand |
| 4869 | USPS, United States Postal Service |
| 4870 | USPTO, United States Patent and Trademark Office |
| 4871 | USR- Universal System Resources (/usr, directory in a *NIX filesystem), User |
| 4872 | USS, United States ship (sometimes meaningless; see Star Trek) |
| 4873 | USSPACECOM, United States Space Command |
| 4874 | USSR, Union of Soviet Socialist Republics |
| 4875 | UST, Underground Storage Tank |
| 4876 | USTRANSCOM, United States Transportation Command |
| 4877 | USWNT, United States women's national (soccer) team |
| 4878 | UT, Universal Time |
| 4879 | UTEP,(a/i) University of Texas at El Paso (pronounced you-tep) |
| 4880 | UTM, Universal Transverse Mercator (geographical co-ordinate system) |
| 4881 | UU, Unitarian Universalism,University of Utah,Unseen University |
| 4882 | UUA, Unitarian Universalist Association |
| 4883 | UUID, Universally Unique Identifier (see also GUID) |
| 4884 | UUV, Unmanned Underwater Vehicle |
| 4885 | UV, Burkina Faso (FIPS 10-4 country code; from Upper Volta), ultraviolet |
| 4886 | UW, University of Washington |
| 4887 | UWO, University of Western Ontario |
| 4888 | UWT, Under Water Telephone |
| 4889 | UWTG, Under Water Tug |
| 4890 | UWW, United World Wrestling |
| 4891 | UXO, Unexploded Ordnance |
| 4892 | UY, Uruguay (ISO 3166 and FIPS 10-4 country code digram) |
| 4893 | UYU, Uruguayan peso uruguayo (ISO 4217 currency code) |
| 4894 | uz, Uzbek language (ISO 639-1 code) |
| 4895 | UZ, Uzbekistan (ISO 3166 and FIPS 10-4 country code digram) |
| 4896 | uzb, Uzbek language (ISO 639-2 code) |
| 4897 | UZB, Uzbekistan (ISO 3166 trigram) |
| 4898 | UZS, Uzbek som (ISO 4217 currency code) |
| 4899 | V, 5 (in Roman numerals),Vanadium,Volt |
| 4900 | VA, Vatican City-State (ISO 3166 digram), Veterans Affairs (U.S. Department of), Virginia (postal symbol), Various Artists |
| 4901 | VACIS, Vehicle And Container Inspection System |
| 4902 | VACIS, Victorian Ambulance Clinical Information System |
| 4903 | VANOS, Variable Nockenwelle System |
| 4904 | VAO, Vienna Art Orchestra |
| 4905 | VASIS, Visual Approach Slope Indicator System (aviation) |
| 4906 | VAT, Value-Added Tax, Vatican City-State (ISO 3166 trigram) |
| 4907 | VB, Victoria Bitter (beer),Visual Basic |
| 4908 | VBA, Visual Basic for Applications |
| 4909 | VC, Saint Vincent and the Grenadines (FIPS 10-4 country code; ISO 3166 digram), Victoria Cross |
| 4910 | VCDS, (Canada) Vice-Chief of the Defence Staff, VAG-COM Diagnostic System |
| 4911 | vCJD, Variant Creutzfeldt-Jakob Disease |
| 4912 | VCJCS, Vice Chairman, Joint Chiefs of Staff |
| 4913 | VCNO, (U.S.) Vice Chief of Naval Operations |
| 4914 | VCR, Video cassette recorder |
| 4915 | VCofS, Vice Chief of Staff |
| 4916 | VCT, Saint Vincent and the Grenadines (ISO 3166 trigram) |
| 4917 | VD, North Vietnam (ISO 3166 digram, obsolete 1977), Venereal Disease |
| 4918 | VDFS, VisualSVN Distributed File System (VDFS) |
| 4919 | VDR, North Vietnam (ISO 3166 trigram, obsolete 1977) |
| 4920 | ve, Venda language (ISO 639-1 code) |
| 4921 | VE, Venezuela (FIPS 10-4 country code; ISO 3166 digram) |
| 4922 | VEB, Venezuelan bolívar (ISO 4217 currency code) |
| 4923 | VEEGA, Venus Earth Earth Gravity Assist manœuvre |
| 4924 | ven, Venda language (ISO 639-2 code) |
| 4925 | VEN, Venezuela (ISO 3166 trigram) |
| 4926 | VERDI, Vittorio Emanuele Re D'Italia (Victor Emmanuel, King of Italy) |
| 4927 | VERITAS, Very Energetic Radiation Imaging Telescope Array System |
| 4928 | VFA- Victorian Football Association (historic Australian rules football league), Volatile Fatty Acid |
| 4929 | VfD, s for deletion (used in Wikipedia) |
| 4930 | VFL, Victorian Football League, the name of two distinct Australian rules football leagues: |
| 4931 | VFM, Value For Money |
| 4932 | VFMO, Very Fast Moving Object (astronomy) |
| 4933 | VFR, Visual Flight Rules |
| 4934 | VFT, Virtual Function Table |
| 4935 | VFW, Veterans of Foreign Wars |
| 4936 | VG, British Virgin Islands (ISO 3166 digram) |
| 4937 | VGB, British Virgin Islands (ISO 3166 trigram) |
| 4938 | VH1,(a/i) Video Hits One |
| 4939 | VHF, Very High Frequency |
| 4940 | vi, Vietnamese language (ISO 639-1 code) |
| 4941 | VIA, Versatile Interface Adapter |
| 4942 | VIC, Victoria, Australia (postal symbol), Video Interface Chip,Virginia Intermont College |
| 4943 | VIDS, Visual Information Display System |
| 4944 | vie, Vietnamese language (ISO 639-2 code) |
| 4945 | VII, 7 (in Roman numerals) |
| 4946 | VIII, 8 (in Roman numerals) |
| 4947 | VIN,(i/a) Vehicle Identification Number (ISO 3779) |
| 4948 | VIP, see entry |
| 4949 | VIR, U.S. Virgin Islands (ISO 3166 trigram),Virgin Atlantic Airways (ICAO code) |
| 4950 | VIS, Vavoua International School,Vienna Independent Shorts,Viewable Image Size,Visual Instruction Set |
| 4951 | VISCII, VIetnamese Standard Code for Information Interchange |
| 4952 | VIT, Vellore Institute of Technology |
| 4953 | VIVO, Video In Video Out |
| 4954 | VJ, Video Jockey |
| 4955 | VK, Australia (ham radio code), Västerbottens-Kuriren, a Swedish daily newspaper |
| 4956 | VLA, Very Large Array,(UK) Veterinary Laboratories Agency |
| 4957 | VLAD,(a/i) Vertical Line Array DIFAR |
| 4958 | VLBA, Very Long Baseline Array |
| 4959 | VLF, Very Low Frequency |
| 4960 | VLIW, Very Long Instruction Word |
| 4961 | VLPFC, VentroLateral PreFrontal Cortex |
| 4962 | VLPMC, VentroLateral PreMotor Cortex |
| 4963 | VLSF, Very Loud, Stink-Free |
| 4964 | VLSI, Very-large-scale integration |
| 4965 | VLVS, Very Loud, Very Stinky |
| 4966 | VM, Vietnam (FIPS 10-4 country code) |
| 4967 | VMF, Variable Message Format |
| 4968 | VMF,Marine Fighting Squadron of the United States Marine Corps |
| 4969 | VMN, VentroMedial Nucleus (neurophysiology) |
| 4970 | VN, Vietnam (ISO 3166 digram) |
| 4971 | VND, Vietnamese đồng (ISO 4217 currency code) |
| 4972 | VNIR, Visible and Near InfraRed |
| 4973 | VNM, Vietnam (ISO 3166 trigram) |
| 4974 | VNS,see entry |
| 4975 | VOA, Voice of America |
| 4976 | vo, Volapük language (ISO 639-1 code) |
| 4977 | VOC, Vereenigde Oostindische Compagnie (Dutch East India Company),Volatile organic compounds |
| 4978 | VOIP, Voice Over Internet Protocol |
| 4979 | vol, Volapük language (ISO 639-2 code) |
| 4980 | VOLT, Visual OpenType Layout Tool |
| 4981 | VON, Victorian Order of Nurses |
| 4982 | VOR, VHF Omnidirectional Ranging |
| 4983 | VOR, Voice of Russia |
| 4984 | VOX, Voice Operated oscillator |
| 4985 | VPN, Virtual Private Network |
| 4986 | VQ, Vector Quantization, U.S. Virgin Islands (FIPS 10-4 territory code) |
| 4987 | VR, Virtual Reality |
| 4988 | VRSG, Virtual Reality Scene Generator |
| 4989 | VSHORAD, Very Short Range Air Defence |
| 4990 | VSO, Voluntary Services Overseas |
| 4991 | VSR, Very Special Relativity |
| 4992 | VT- Vatican City-State (FIPS 10-4 country code),Vermont (postal symbol), Video tape,Virginia Tech |
| 4993 | VTC, Video Tele-Conference |
| 4994 | VTEC, Variable valve Timing and Electronic lift Control |
| 4995 | VTOL, Vertical Take-Off & Landing |
| 4996 | VU, Vanuatu (ISO 3166 digram), Vedanta University |
| 4997 | VUB, Vrije Universiteit Brussel (Belgian university) |
| 4998 | VUT, Vanuatu (ISO 3166 trigram) |
| 4999 | VUV, Vanuatu vatu (ISO 4217 currency code) |
| 5000 | VV, Via Voice,Village Voice |
| 5001 | VVAF, Vietnam Veterans of America Foundation |
| 5002 | VW, Volkswagen |
| 5003 | VZ, Verizon Communications (NYSE code) |
| 5004 | W, Tungsten (from German Wolfram),Watt,West |
| 5005 | W3C, World Wide Web Consortium |
| 5006 | wa, Walloon language (ISO 639-1 code) |
| 5007 | WA- Namibia (FIPS 10-4 country code; from West Africa),Washington state (postal symbol),Western Australia (postal symbol), World Archery (Federation) |
| 5008 | WAAC, Women's Army Auxiliary Corps (Britain) (World War I UK) |
| 5009 | WAAF, Women's Auxiliary Air Force (World War II UK) |
| 5010 | WAC- Western Athletic Conference, Women's Auxiliary Corps (World War II Canada),Women's Army Corps (World War II U.S.) |
| 5011 | WACC, Weighted Average Cost of Capital (accounting) |
| 5012 | WACS,What-A-Cartoon! Show |
| 5013 | WAD, Weapons Alert Designator |
| 5014 | WAGGGS, World Association of Girl Guides and Girl Scouts |
| 5015 | WAGs, Wives And Girlfriends (most notably of England national football team players at the 2006 FIFA World Cup, although the term existed earlier) |
| 5016 | WAK, Wake Island (ISO 3166 trigram, obsolete 1986) |
| 5017 | WAL,see entry |
| 5018 | WAN, Wide area network |
| 5019 | WAP, Wireless Application Protocol |
| 5020 | WAPIMA, What a pain in my ass |
| 5021 | WAR, With All Respect |
| 5022 | WAsP, Short form of WAAAAP (Wind Atlas Analysis and Application Program) |
| 5023 | WASP- White Anglo-Saxon Protestant,Wide Angle Search for Planets,Women Airforce Service Pilots |
| 5024 | WAYP, White And Yellow Pages |
| 5025 | Wb, Weber |
| 5026 | WB, Warner Bros.,Welcome Back (Internet shorthand) |
| 5027 | WBA- Warner Bros. Animation,West Bromwich Albion (F.C.),World Boxing Association |
| 5028 | WBC, World Boxing Council |
| 5029 | WBE, Work Breakdown Element |
| 5030 | WBO, World Boxing Organization |
| 5031 | WC, Water Closet,Winston Churchill,World Cup (sports) |
| 5032 | WCBO, World Chess Boxing Organisation |
| 5033 | WCBP, World Center for Birds of Prey |
| 5034 | WCL, World Confederation of Labour |
| 5035 | WCS, Weapon Control Status,Wildlife Conservation Society |
| 5036 | WCW, World Championship Wrestling |
| 5037 | WDC, Western Design Center,World Data Center |
| 5038 | WDWR,Walt Disney World Resort |
| 5039 | WDIN,Wildlife Disease Information Node |
| 5040 | WEBS, Weapon Effectiveness Battle Simulation |
| 5041 | WEC, World Extreme Cagefighting |
| 5042 | WEEE, Waste Electrical and Electronic Equipment |
| 5043 | WEF, World Economic Forum |
| 5044 | WEM, West Edmonton Mall |
| 5045 | WEU, Western European Union |
| 5046 | WEZ,(a/i) Weapon Engagement Zone |
| 5047 | WF, Wallis and Futuna Islands (ISO 3166 digram) |
| 5048 | WFC, Women's Forage Corps (World War II UK) |
| 5049 | WFD, Weapon of Focused Destruction |
| 5050 | WFF, Wallops Flight Facility |
| 5051 | WFP, World Food Program |
| 5052 | WFZ, Weapons Free Zone |
| 5053 | WFI,Water for Injection |
| 5054 | WG, Working Group,Wade-Giles |
| 5055 | WH, Wehrmacht Heer (German World War II army vehicle licence plate code) |
| 5056 | WHAM, Wisconsin Hydrogen-Alpha Mapping (telescope) |
| 5057 | WHI, Women's Health Initiative |
| 5058 | WHIP, Walks plus hits per inning pitched |
| 5059 | WHO, World Health Organisation |
| 5060 | WHS, (U.S.) Washington Headquarters Services |
| 5061 | WI, Western Sahara (FIPS 10-4 country code),Wisconsin (postal symbol),Women's Institute |
| 5062 | WIA, Wounded In Action, Wireless Institute of Australia (Amateur Radio) |
| 5063 | WIIFM, What's in it for me? |
| 5064 | WIMP, Weakly Interacting Massive Particle,Windows, Icons, Menus, Pointers |
| 5065 | WIPO,(a/i) World Intellectual Property Organization |
| 5066 | WIPP, [Nuclear] Waste Isolation Pilot Plant |
| 5067 | WIYN, Wisconsin Indiana Yale NOAO telescope consortium |
| 5068 | WK, Wake Island (ISO 3166 digram, obsolete 1986) |
| 5069 | WKYP, Will Keep You Posted |
| 5070 | WL, Wehrmacht Luftwaffe (German World War II air force vehicle licence plate code) |
| 5071 | WLB, Women's Land Brigade (World War II Canada) |
| 5072 | WLF, Wallis and Futuna Islands (ISO 3166 trigram) |
| 5073 | wln, Walloon language (ISO 639-2 code) |
| 5074 | WLOG, Without Loss Of Generality (see WOLOG) |
| 5075 | WM, Wehrmacht Marine (German World War II navy vehicle licence plate code) |
| 5076 | WMANUS, West Midlands Area National Union of Students |
| 5077 | WMD, World Movement for Democracy |
| 5078 | WMI, Wildlife Management Institute |
| 5079 | WMO, World Meteorological Organization |
| 5080 | WNA, World Nuclear Association |
| 5081 | WNIT, Women's National Invitation Tournament |
| 5082 | WNSD, What's New, Scooby-Doo? |
| 5083 | WNW, West North-West |
| 5084 | wo, Wolof language (ISO 639-1 code) |
| 5085 | WO, Warrant Officer |
| 5086 | WOF,Width of Fabric |
| 5087 | WOFT, Waste Of Fucking Time |
| 5088 | WOFTAM, Waste Of Fucking Time And Money |
| 5089 | WOI,(a/i) Wheels Of Italy |
| 5090 | wol, Wolof language (ISO 639-2 code) |
| 5091 | WOM, Write Only Memory |
| 5092 | WOS, Wilson Ornithological Society |
| 5093 | WOSM- World Organization of the Scout Movement,Worldwide Oil Spill Model |
| 5094 | WOT, Waste Of Time |
| 5095 | WP, White Phosphorus (ammunition) |
| 5096 | WPB, War Production Board during World War II |
| 5097 | WPE, World Pork Expo |
| 5098 | WPK, Wider Peacekeeping |
| 5099 | WPT, World Poker Tour,World Premiere Toons |
| 5100 | WR, Wide Receiver (football) |
| 5101 | WRAC, Women's Royal Army Corps (World War II UK) |
| 5102 | WRAIR, Walter Reed Army Institute of Research |
| 5103 | WRC, World Rally Championship |
| 5104 | WRC,World Religions Conference |
| 5105 | WRVS, Women's Royal Voluntary Service, now only known by the acronym (UK) |
| 5106 | WRS, Worldwide Reference System |
| 5107 | WRT, Writer Response Theory |
| 5108 | WRT,World Rally Team |
| 5109 | WRT,Wallace Roberts & Todd, LLC (Urban Planning and Design) |
| 5110 | WRT,Wireless Ronin Technologies (digital signage) |
| 5111 | WRT,NHS Workforce Review Team |
| 5112 | WRT,The Linksys routers whose model name start with 'WRT' |
| 5113 | WRT,Wholesale, Trade, Retail sector, category in employment and economics statistics |
| 5114 | WRT,Wireless Receiver/Transmitter ( computer networks/IT ) |
| 5115 | WRT,Third party firmware for the Linksys WRT routers and compatible models from other vendors. |
| 5116 | WRT,Web Runtime (WRT) is a portable application framework developed by Nokia that allows the creation of widgets on the S60 Platform. |
| 5117 | WS- Samoa (ISO 3166 and FIPS 10-4 country code digram; from the country's former name of Western Samoa), Writer to the Signet (a Scottish solicitor) |
| 5118 | WSC, Weapon System Catalogue |
| 5119 | WSDL, Web Services Description Language |
| 5120 | WSJ, (The) Wall Street Journal |
| 5121 | WSL- White Star Line (shipping company),Women's Super League, used to describe England's top women's association football league and top women's rugby union competition,Workers' Socialist League (UK political party) |
| 5122 | WSM- Samoa (ISO 3166 trigram; from Western Samoa), Winchester Short Magnum (family of rifle cartridges) |
| 5123 | WSROC, Western Sydney Regional Organisation of Councils |
| 5124 | WSSM, Winchester Super Short Magnum (family of rifle cartridges) |
| 5125 | WST- Water Soluble Tetrazolium (assay), Samoan tālā (ISO 4217 currency code) |
| 5126 | WSTC, Women Signallers Territorial Corps (World War II UK) |
| 5127 | WSW, West South-West |
| 5128 | WTB, Wales Tourism Board,Warenterminbörse Hannover |
| 5129 | WTC, World Trade Center |
| 5130 | WTF, What the fuck?; also What a Terrible Failure (android) |
| 5131 | WTFH, What The Fucking Hell |
| 5132 | WTH, What the Hell |
| 5133 | WTO, World Trade Organization |
| 5134 | WU, Wabash University,Washington University in St. Louis,Western Union,Windows Update,Work unit,WU Wien (German Wirtschaftsuniversität Wien, Vienna University of Economics and Business Administration) |
| 5135 | WUU2,What you up to,Internet slang popular with teenagers. |
| 5136 | WUBU2,What you been up to |
| 5137 | WV, West Virginia (postal symbol) |
| 5138 | WVA, World Veterinary Association |
| 5139 | WVIAC, West Virginia Intercollegiate Athletic Conference |
| 5140 | WVR, Women's Volunteer Reserve (World War II UK) |
| 5141 | WVSC, Women's Volunteer Service Corps (World War II Canada) |
| 5142 | WVU, West Virginia University |
| 5143 | WW,see entry |
| 5144 | WWE, World Wrestling Entertainment |
| 5145 | WWF- World Wide Fund for Nature, from its original name of World Wildlife Fund, which remains the legal name in the U.S. and Canada,World Wrestling Federation |
| 5146 | WWI, World War I |
| 5147 | WWII, World War II |
| 5148 | WWIII, World War III |
| 5149 | WWS, Wheaton Warrenville South High School |
| 5150 | WWV, Wagner-Werk-Verzeichnis (catalog of the works of Richard Wagner, and callsign of NIST's shortwave radio station in Fort Collins, Colorado) |
| 5151 | WWW, World Wide Web |
| 5152 | WWWF, World Wide Wrestling Federation |
| 5153 | WXO, Weather [Executive] Officer |
| 5154 | WY, Wyoming (postal symbol) |
| 5155 | WZ, Swaziland (FIPS 10-4 country code) |
| 5156 | XAF, BEAC (Banque des états de l'Afrique centrale) Central Africa CFA (Coopération financière en Afrique centrale) franc (ISO 4217 currency code) |
| 5157 | XAG, Silver Troy ounce (ISO 4217 currency code) |
| 5158 | XAU, Gold Troy ounce (ISO 4217 currency code) |
| 5159 | XBA, European Composite Unit (EURCO; Bonds market unit) (ISO 4217 currency code) |
| 5160 | XBB, European Monetary Unit (E.M.U.; Bonds market unit) (ISO 4217 currency code) |
| 5161 | XBML, eXtended Business Modelling Language |
| 5162 | XC, Ninety (in Roman numerals) |
| 5163 | XCBL, XML Common Business Library |
| 5164 | XCD, East Caribbean dollar (ISO 4217 currency code) |
| 5165 | XD,Used in chatrooms or email for smiley face. X is the eyes; squinted D is the mouth; XD. |
| 5166 | Xe, Xenon |
| 5167 | XF, Automobile made by Jaguar, Truck made by DAF Trucks, IATA code for Vladivostok Air |
| 5168 | XFA, XML Forms Architecture |
| 5169 | XFC, Xtreme Fighting Championships |
| 5170 | XFD, Fighter aircraft made by Douglas |
| 5171 | Xfe, X File Explorer |
| 5172 | XFF, X-Forwarded-For |
| 5173 | XFG, Exfoliation glaucoma |
| 5174 | XFH, 1932 rototype U.S. Navy fighter aircraft made by Hall, X-ray fluorescence holography |
| 5175 | XFN, XHTML Friends Network, IATA code for Xiangyang Liuji Airport |
| 5176 | XFR, Automobile made by Jaguar |
| 5177 | XFT, X FreeType interface library |
| 5178 | XFW, IATA code for Hamburg Finkenwerder Airport |
| 5179 | XG, Automobile made by Hyundai |
| 5180 | XGA, Extended Graphics Array |
| 5181 | XGG, IATA code for Gorom Gorom Airport |
| 5182 | XGN, IATA code for Xangongo Airport |
| 5183 | XGP, Extreme Game Player |
| 5184 | XGR, IATA code for Kangiqsualujjuag (Georges River) Airport |
| 5185 | xh, Xhosa language (ISO 639-1 code) |
| 5186 | xho, Xhosa language (ISO 639-2 code) |
| 5187 | XHTML, eXtensible Hypertext Markup Language |
| 5188 | XHR, eXtra high Image resolution,XMLHTTPRequest |
| 5189 | XI, Eleven (in Roman numerals) |
| 5190 | XII, Twelve (in Roman numerals) |
| 5191 | XIII, Thirteen (in Roman numerals) |
| 5192 | XIV, Fourteen (in Roman numerals) |
| 5193 | XIX, Nineteen (in Roman numerals) |
| 5194 | XJ, Automobile made by Jaguar, Automobile made by Jeep |
| 5195 | XJL, Amphibian aircraft made by Columbia, Automobile made by Jaguar |
| 5196 | XJS, Automobile made by Jaguar |
| 5197 | XK, Automobile made by Jaguar, Automobile made by Jeep, Kell blood group precursor |
| 5198 | XKA, IATA code for Kantchari Airport |
| 5199 | XKB, X keyboard extension |
| 5200 | XKE, Automobile made by Jaguar |
| 5201 | XKH, IATA code for Xieng Khouang Airport |
| 5202 | XKR, Automobile made by Jaguar |
| 5203 | XKS, IATA code for Kasabonika Airport |
| 5204 | XKY, IATA code for Kaya Airport |
| 5205 | XL, eXtra Large, Forty (in Roman numerals) |
| 5206 | XML, eXtensible Markup Language |
| 5207 | XMSF, eXtensible Modelling and Simulation Framework |
| 5208 | XN, Christian, Nordic Patent Institute |
| 5209 | XNA, IATA code for Northwest Arkansas Regional Airport, X-No-Archive, Xeno Nucleic Acid |
| 5210 | XNC, X Northern Captain |
| 5211 | XNN, IATA code for Xining Caojiabao Airport |
| 5212 | XNS, Xerox Network Systems, Extensible Name Service, Christians |
| 5213 | XNU, X is Not Unix |
| 5214 | XOF, BCÉAO (Banque centrale des états de l'Afrique de l'Ouest) West African CFA (Communauté financière d'Afrique) franc (ISO 4217 currency code) |
| 5215 | XP, eXperience Point (role-playing games) |
| 5216 | XPD, Palladium Troy ounce (ISO 4217 currency code) |
| 5217 | XPF, CFP franc (ISO 4217 currency code) |
| 5218 | XPT, Platinum Troy ounce (ISO 4217 currency code) |
| 5219 | XQJ, XQuery API for Java™ |
| 5220 | XQP, IATA code for Quepos La Managua Airport |
| 5221 | XQU, IATA code for Qualicum Beach Airport |
| 5222 | XRML, eXtensible Rights Markup Language |
| 5223 | XS, Xiaolin Showdown |
| 5224 | XSL, eXtensible Style Language |
| 5225 | XTMH,eXtreme Technology Multiprocessor Hyperlanguage |
| 5226 | XUL, XML User Interface Language |
| 5227 | XV, Fifteen (in Roman numerals) |
| 5228 | XVI, Sixteen (in Roman numerals) |
| 5229 | XVII, Seventeen (in Roman numerals) |
| 5230 | XVIII, Eighteen (in Roman numerals) |
| 5231 | XWF, Xcitement Wrestling Federation |
| 5232 | XWM, X window manager |
| 5233 | XWN, eXtended WordNet |
| 5234 | XWS, X Window System |
| 5235 | XX, Twenty (in Roman numerals) |
| 5236 | XXX, Hardcore pornography (film rating),Thirty (in Roman numera |
| 5237 | XYA, IATA code for Yandina Airport |
| 5238 | Xyl, Xylobium |
| 5239 | XZA, IATA code for Zabré Airport |
| 5240 | XZN, Triple square screw driver |
| 5241 | y, Yocto- |
| 5242 | Y, Yotta,Yttrium |
| 5243 | Y2K, Year Two Thousand |
| 5244 | yA, Yoctoampere |
| 5245 | Ya, Yottayear |
| 5246 | YA, Yottaampere, Young Adult |
| 5247 | YAC,(a/i) Youth-Adult Committee |
| 5248 | YAFLA, Yet Another Five Letter Abbreviation |
| 5249 | YAP, Young Aspiring Professional |
| 5250 | YaBPr, Yet another Brother Pat rant |
| 5251 | YABSLAG, Yet another boy singing like a girl |
| 5252 | Yb, Ytterbium |
| 5253 | YB, Youcef Benzouada (Southern Algerian name) |
| 5254 | yC, Yoctocoulomb |
| 5255 | YC, Yottacoulomb |
| 5256 | YD, People's Democratic Republic of Yemen (ISO 3166 digram, obsolete 1990) |
| 5257 | YDS, Yosemite Decimal System (climbing) |
| 5258 | YE, Yemen (ISO 3166 digram) |
| 5259 | YEM, Yemen (ISO 3166 trigram),Manitowaning/Manitoulin East Municipal Airport IATA airport code |
| 5260 | YER, Yemeni rial (ISO 4217 currency code) |
| 5261 | yF, Yoctofarad |
| 5262 | YF, Yottafarad |
| 5263 | yg, Yoctogram |
| 5264 | Yg, Yottagram |
| 5265 | Ygo, Yu-Gi-Oh! |
| 5266 | YGCO, Yamaneko Group of Comet Observers |
| 5267 | yH, Yoctohenry |
| 5268 | YH, Yottahenry |
| 5269 | YHS,Ya Hoor sur! |
| 5270 | YHBT, You Have Been Trolled |
| 5271 | YHIH1, You Heard It Here First (lowercase: yhih1, pronounced yi-hi) |
| 5272 | YHII,You Have It Inside |
| 5273 | yi, Yiddish language (ISO 639-1 code) |
| 5274 | Yi, Yobi |
| 5275 | YI, Serbia and Montenegro (deprecated FIPS 10-4 country code, now RB (Serbia) and MJ (Montenegro)) |
| 5276 | yid, Yiddish language (ISO 639-2 code) |
| 5277 | Yippie, Youth International Party + suffix |
| 5278 | yJ, Yoctojoule |
| 5279 | YJ, Yottajoule |
| 5280 | yK, Yoctokelvin |
| 5281 | YK, Yottakelvin |
| 5282 | YKYFCW,You know you're from Christchurch when (post-earthquake joke) |
| 5283 | yL, Yoctolitre |
| 5284 | YL, Yottalitre |
| 5285 | ym, Yoctometre |
| 5286 | Ym, Yottametre |
| 5287 | YM, Yemen (FIPS 10-4 country code), Your Magazine (originally Young Miss, later Young & Modern) |
| 5288 | YMCA, Young Men's Christian Association |
| 5289 | YMD, People's Democratic Republic of Yemen (ISO 3166 trigram, obsolete 1990) |
| 5290 | YMMD, You Make My Day |
| 5291 | yN, Yoctonewton |
| 5292 | YN, Yottanewton |
| 5293 | yo, Yoruba language (ISO 639-1 code) |
| 5294 | YO, former Yugoslavia (NATO country code, obsolete 1993) |
| 5295 | YOLO, You Only Live Once |
| 5296 | yor, Yoruba language (ISO 639-2 code) |
| 5297 | YPA, Yards per Pass Attempt (football statistic) |
| 5298 | YPIO, Your Problem Is Obvious |
| 5299 | YPO, Young Presidents' Organization |
| 5300 | ys, Yoctosecond |
| 5301 | yS, Yoctosiemens |
| 5302 | Ys, Yottasecond |
| 5303 | YS, Yottasiemens |
| 5304 | YSA- Single adult (LDS Church),Young Socialist Alliance,Youth Service America |
| 5305 | YSI, Young Scots for Independence |
| 5306 | yT, Yoctotesla |
| 5307 | YT, Mayotte (ISO 3166 digram),Yottatesla,Yukon Territory (postal symbol) |
| 5308 | YTD, Year-To-Date |
| 5309 | YTM, Yield to Maturity |
| 5310 | YTS, Youth Training Scheme |
| 5311 | YTT,Yoshi Topsy-Turvy |
| 5312 | YU, York University, former Yugoslavia (ISO 3166 digram, obsolete 2003) |
| 5313 | YUG, former Yugoslavia (ISO 3166 trigram, obsolete 2003) |
| 5314 | Yuppie, Young Urban Professional + suffix |
| 5315 | yV, Yoctovolt |
| 5316 | YV, Yottavolt |
| 5317 | yW, Yoctowatt |
| 5318 | YW, Yottawatt |
| 5319 | YWCA, Young Women's Christian Association |
| 5320 | YYH, YuYu Hakusho |
| 5321 | z, Zepto |
| 5322 | Z, Zetta |
| 5323 | za, Zhuang languages (ISO 639-1 code) |
| 5324 | zA, Zeptoampere |
| 5325 | ZA, South Africa (ISO 3166 digram),Zambia (FIPS 10-4 country code),Zettaampere |
| 5326 | ZAF, South Africa (ISO 3166 trigram) |
| 5327 | ZAMS, Zero age main sequence |
| 5328 | ZAR, South African rand (ISO 4217 currency code),Zaire (ISO 3166 trigram, obsolete 1997) |
| 5329 | ZAS,(i/a) Zylinder Abschaltung System |
| 5330 | ZBT, Zero-Balance Transfer (accounting) |
| 5331 | zC, Zeptocoulomb |
| 5332 | ZC, Zettacoulomb |
| 5333 | ZCM,(n) ZENworks Configuration Management |
| 5334 | ZCMK, Zone Control Master Key |
| 5335 | ZCU, Zimbabwe Cricket Union |