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321 KiB
321 KiB
| 1 | Abbr,Term |
|---|---|
| 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 | 4WD,Four-wheel drive |
| 18 | 5D,Five-Dimensional |
| 19 | 6D,Six-Dimensional |
| 20 | 7D,Seven-Dimensional |
| 21 | 8D,Eight-Dimensional |
| 22 | 9D,Nine-Dimensional |
| 23 | A,Ampere |
| 24 | A10,Atlantic 10 Conference |
| 25 | A1C,Airman First Class |
| 26 | A4,European standard office paper size |
| 27 | AA,achieved availability,Alcoholics Anonymous,Armed Forces Americas (postal symbol),Aruba (FIPS 10-4 territory code),assembly area,Automobile Association,avenue of approach |
| 28 | aa,Afar language (ISO 639-1 code) |
| 29 | aA,Attoampere |
| 30 | AAAI,Association for the Advancement of Artificial Intelligence,formerly American Association for Artificial Intelligence |
| 31 | AAAS,American Association for the Advancement of Science |
| 32 | AAAV,Advanced Amphibious Assault Vehicle |
| 33 | AAC,American Athletic Conference,Army Air Corps (British Army) |
| 34 | AAD,analogue-analogue-digital (CD quality),Australian Antarctic Division |
| 35 | AADAC,Alberta Alcohol and Drug Abuse Commission |
| 36 | AADC,area air defense commander,amino acid decarboxylase,aromatic L-amino acid decarboxylase,Australian Antarctic Data Centre |
| 37 | AADD,Adult attention deficit disorder |
| 38 | AADT,annual average daily traffic |
| 39 | AAFC,U.S. Army Air Corps Ferrying Command (1941-1942),All-America Football Conference (1946-1949) |
| 40 | AAFES,Army and Air Force Exchange Service |
| 41 | AAIS,advanced airborne interceptor simulator |
| 42 | AAM,air-to-air missile |
| 43 | AAMOF,as a matter of fact |
| 44 | AAN,American Academy of Nursing |
| 45 | AANEAS,Anglo-Australian Near-Earth Asteroid Survey |
| 46 | AAODL,Atmospheric Aerosols and Optics Data Library |
| 47 | AAP,advanced acquisition plan,Allied administrative publication,American Academy of Pediatrics |
| 48 | AAPC,Accounting and Auditing Policy Committee |
| 49 | aar,Afar language (ISO 639-2 code) |
| 50 | AAR,after-action review,Association of American Railroads |
| 51 | AARP,(i/s) American Association of Retired Persons (now officially known only by the initials) |
| 52 | AASPEM,advanced air-to-air system performance evaluation model |
| 53 | AAT,Australian Antarctic Territory |
| 54 | AAV,Amphibious Assault Vehicle |
| 55 | AAWC,anti-air warfare commander |
| 56 | ab,Abkhaz language (ISO 639-1 code) |
| 57 | ABA,Adriatic Basketball Association,American Bar Association,American Basketball Association,American Beverage Association,American Bicycle Association,American Birding Association,Australian Broadcasting Authority |
| 58 | ABB,ASEA Brown Boveri (Swiss-Swedish multinational company) |
| 59 | ABC,the first three letters of the Latin script known as the alphabet |
| 60 | ABC,Active Body Control |
| 61 | ABC,alien big cat |
| 62 | ABC,always be careful |
| 63 | ABC,American-born Chinese |
| 64 | ABC,anti-lock brake controller |
| 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 | ABSTRIPS,abstraction-based STRIPS |
| 80 | ABV,Alcohol by volume |
| 81 | ABW,Aruba (ISO 3166 trigram) |
| 82 | Ac,Actinium |
| 83 | aC,Attocoulomb |
| 84 | AC1,Aircraftman 1st Class |
| 85 | AC2,Aircraftman 2nd Class |
| 86 | ACARS,Aircraft Communications Addressing and Reporting System |
| 87 | ACAS,Aboriginal Children's Advancement Society,Advisory,Conciliation and Arbitration Service |
| 88 | ACCA,The Association of Chartered Certified Accountants,Automatic Cloud Cover Assessment |
| 89 | ACCD,American Coalition of Citizens with Disabilities |
| 90 | ACCS,Air Communications and Control Squadron |
| 91 | ACDA,Arms Control & Disarmament Agency |
| 92 | ACHT,Average Call Hold Time |
| 93 | ACINT,Acoustic Intelligence |
| 94 | ACK,Acknowledge (telecommunications; cf. NAK) |
| 95 | ACLJ,American Center for Law and Justice |
| 96 | ACLOS,Automatic CLOS (missile control system) |
| 97 | ACLS,American Council of Learned Societies |
| 98 | ACMC,(U.S.) Assistant Commandant of the Marine Corps |
| 99 | ACNA,Anglican Church in North America |
| 100 | ACO,Airspace Control Order |
| 101 | ACOBA,Advisory Committee on Business Appointments |
| 102 | ACOG,American College of Obstetricians and Gynecologists |
| 103 | ACOM,(U.S.) Atlantic Command |
| 104 | ACORN,Association of Community Organizations for Reform Now |
| 105 | ACR,Advanced Concepts and Requirements |
| 106 | ACRI,African Crisis Initiative |
| 107 | ACRT,Advanced Concepts Research Tool simulator |
| 108 | ACSC,Army Command and Staff College (various nations) |
| 109 | ACST,American Cooperative School of Tunis |
| 110 | ACST,Australian Central Standard Time |
| 111 | ACTD,Advanced Concept Technology Demonstration |
| 112 | ACTU,Australian Council of Trade Unions |
| 113 | ACU,American Conservative Union |
| 114 | ADAGE,Air Defense Air to Ground Engagement (simulation) |
| 115 | ADAP,AIDS Drug Assistance Program |
| 116 | ADAS,Asiago-DLR Asteroid Survey |
| 117 | ADAT,Alesis Digital Audio Tape (recording format) |
| 118 | ADB,Asian Development Bank |
| 119 | ADDIE,Analyze Design Develop Implement and Evaluate |
| 120 | ADDNS,Advanced Deployable Day/Night Simulation |
| 121 | ADF,Australian Defence Force,African Development Foundation |
| 122 | ADGB,Air Defence of Great Britain |
| 123 | ADHD,Attention-Deficit Hyperactivity Disorder |
| 124 | ADHS,Attention-Deficit Hyperactivity Syndrome |
| 125 | ADI,Acceptable/Allowable Daily Intake |
| 126 | ADIZ,Air Defence Identification Zone |
| 127 | ADL,Anti-Defamation League |
| 128 | ADOA,Air Defence Operations Area |
| 129 | ADRG,Arc-second Raster Chart (ARC) Digitized Raster Graphics |
| 130 | ADT,Atlantic Daylight Time (UTC−3 hours) |
| 131 | ADTB,Army Doctrine and Training Bulletin |
| 132 | ADW,Air Defence Warning |
| 133 | ae,Avestan language (ISO 639-1 code) |
| 134 | AED,United Arab Emirates dirham (ISO 4217 currency code) |
| 135 | AEDT,Australian Eastern Daylight Time |
| 136 | AEF,American Expeditionary Force |
| 137 | AEGIS,Airborne Early warning Ground environment Interface Segment (fake etymology) |
| 138 | AESR,Aeronautical Equipment Service Record |
| 139 | AEST,Australian Eastern Standard Time |
| 140 | aet,After extra time (Football) |
| 141 | af,Afrikaans language (ISO 639-1 code) |
| 142 | aF,Attofarad |
| 143 | AFAIC,As Far As I'm Concerned |
| 144 | AFAICT,As Far As I Can Tell |
| 145 | AFAIK,As Far As I Know |
| 146 | AFAIR,As Far As I Remember/Recall |
| 147 | AFATDS,Advanced Field Artillery Tactical Data System |
| 148 | AFC,American Football Conference,Asian Football Confederation |
| 149 | AFCEA,Armed Forces Communications and Electronics Association |
| 150 | AFDB,African Development Bank |
| 151 | AFES,Automatic Fire Extinguishing System |
| 152 | AFG,Afghanistan (ISO 3166 trigram) |
| 153 | AFIS,Automated Fingerprint Identification System,American Forces Information Service |
| 154 | AFIST,Abrams Full Crew Interactive Skills Trainer |
| 155 | AFJ,April Fool's Joke |
| 156 | AFK,Away From Keyboard (Internet chat abbreviation) |
| 157 | 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 |
| 158 | AFLAC,American Family Life Assurance Company of Columbus |
| 159 | AFM,Army Field Manual (UK; the U.S. more frequently uses just FM),Atomic Force Microscope,Aviation Fleet Maintenance |
| 160 | AFN,Afghani (ISO 4217 currency code) |
| 161 | AFO,Association of Field Ornithologists |
| 162 | AFOSR,U.S. Air Force Office of Scientific Research |
| 163 | AFQT,Armed Forces Qualification Test |
| 164 | afr,Afrikaans language (ISO 639-2 code) |
| 165 | AFRC,Air Force Reserve Command |
| 166 | AFRL,Air Force Research Laboratory |
| 167 | AFROTC,Air Force Reserve Officer Training Corps |
| 168 | AFRRI,(i,U.S.) Armed Forces Radiobiology Research Institute |
| 169 | AFRTS,Armed Forces Radio and Television Service |
| 170 | AFS,Active Front Steering,Air Facility Sub-System,Amniotic Fluid-derived Stem cell,AFS&A or AFSA,U.S. Air Force Studies and Analysis |
| 171 | AFSC,U.S. Air Force Staff College (obsolete; replaced with JFSC),U.S. Air Force Systems Command |
| 172 | AFSCN,U.S. Air Force Satellite Control Network |
| 173 | AFSPC,Air Force Space Command |
| 174 | AFT,American Farmland Trust |
| 175 | AFV,armoured fighting vehicle |
| 176 | AFWA,Air Force Weather Agency,Association of Fish and Wildlife Agencies,AG[edit] |
| 177 | ag,Attogram |
| 178 | Ag,Silver (Latin argentum) |
| 179 | AGARD,Advisory Group for Aerospace Research and Development |
| 180 | AGARDograph,Advanced Guidance for Alliance Research and Development publication |
| 181 | AGASA,Akeno Giant Air Shower Array (cosmic ray detector) |
| 182 | AGB,Internal Nintendo initialism (Advanced Game Boy) for Game Boy Advance |
| 183 | AGC,Adjutant General's Corps (British Army) |
| 184 | AGC,Apollo Guidance Computer,Automatic Gain Control |
| 185 | AGDC,Australian Game Developers' Conference |
| 186 | AGI,Auxiliary Group Intelligence |
| 187 | AGL,Above Ground Level |
| 188 | AGM,Annual General Meeting |
| 189 | AGN,Active Galactic Nucleus |
| 190 | AGO,Angola (ISO 3166 trigram) |
| 191 | AGP,Accelerated Graphics Port |
| 192 | AGRICOLA,Agriculture Online Access |
| 193 | AGS,Alaska Ground Station (LandSat) |
| 194 | AGTS,Advanced Gunnery Training System |
| 195 | AGU,American Geophysical Union |
| 196 | AGW,Autonomous Guided Weapon |
| 197 | Ah,Ampere-hour |
| 198 | AH,Attack Helicopter |
| 199 | aH,Attohenry |
| 200 | AHA,American Heart Association |
| 201 | AHCPR,Agency for Health Care Policy and Research (obsolete; replaced with AHRQ) |
| 202 | AHEC,Australian Health Ethics Committee |
| 203 | AHPCRC,Army High Performance Computing Research Center |
| 204 | AHQ,Air Headquarters |
| 205 | AHRQ,Agency for Healthcare Research and Quality |
| 206 | AHS,American Housing Survey |
| 207 | AI,Air Interdiction,Amnesty International,Artificial Insemination,Artificial Intelligence,Anguilla (ISO 3166 digram) |
| 208 | AIA,Aerospace Industries Association,American Institute of Architects,Anguilla (ISO 3166 trigram) |
| 209 | AIAA,American Institute of Aeronautics and Astronautics |
| 210 | AIC,African Independent Church,Animal Identification Coordinator |
| 211 | AICD,Australian Institute of Company Directors |
| 212 | AICMFP,And I Claim My Five Pounds |
| 213 | AID,U.S. Agency for International Development |
| 214 | AIDS,Acquired Immune Deficiency Syndrome |
| 215 | AIM,Australian Institute of Management |
| 216 | AIMP,Aurora Incremental Modernization Project |
| 217 | AIPAC,American Israel Public Affairs Committee |
| 218 | AIR,Aircraft Inventory Record |
| 219 | AIRFA,American Indian Religious Freedom Act |
| 220 | AIRS,(a/i) Aerometric Information Retrieval System (obsolete; replaced with AFS) |
| 221 | AIS,Australian Institute of Sport,Automatic Identification System |
| 222 | AISB,(British Society for the Study of) Artificial Intelligence and the Simulation of Behaviour |
| 223 | aJ,Attojoule |
| 224 | AJ,Azerbaijan (FIPS 10-4 country code) |
| 225 | Ajax,Asynchronous JavaScript And XML |
| 226 | AJD,Astronomical Julian day |
| 227 | AJP,Allied Joint Publication |
| 228 | AJPW,All Japan Pro Wrestling |
| 229 | ak,Akan languages (ISO 639-1 code) |
| 230 | AK,Alaska (postal symbol) |
| 231 | aK,Attokelvin |
| 232 | AKA,Above knee amputation (orthopaedic usage) |
| 233 | aka,Akan languages (ISO 639-2 code) |
| 234 | AKDT,Alaska Standard Daylight Saving Time (UTC−8 hours) |
| 235 | AKST,Alaska Standard Time (UTC−9 hours) |
| 236 | Al,Aluminium |
| 237 | aL,Attolitre |
| 238 | ALA,Åland Islands (ISO 3166 trigram) |
| 239 | ALAP,As Long/Late As Possible |
| 240 | ALARM,Air-Launched Anti-Radar Missile |
| 241 | ALB,Albania (ISO 3166 trigram) |
| 242 | ALD,Accounting Line Designator (nuclear weapon targeting) |
| 243 | ALERT,Advanced Linked Extended Reconnaissance and Targeting,Attack and Launch Early Reporting to Theatre |
| 244 | ALF,Africa Leadership Forum,Alien Life Form (cf. ALF (TV series)),Animal Liberation Front |
| 245 | ALG,Algeria (IOC and FIFA trigram,but not ISO 3166) |
| 246 | ALGOL,ALGOrithmic Language |
| 247 | ALL,Albanian lek (ISO 4217 currency code) |
| 248 | ALOA,Associated Locksmiths of America,Inc. |
| 249 | ALOC,Air Lines Of Communication,Average Length of Calls |
| 250 | ALPA,Air Line Pilots Association |
| 251 | ALS,Amyotrophic Lateral Sclerosis,Automatic Landing System |
| 252 | ALSHS,Abraham Low Self-Help Systems |
| 253 | ALSP,Aggregate Level Simulation Protocol |
| 254 | ALTE,Association of Language Testers in Europe |
| 255 | Am,Americium |
| 256 | am,Amharic language (ISO 639-1 code),Attometre |
| 257 | AM-many,including Amplitude Modulation and Ante Meridiem; see entry,Armenia (FIPS 10-4 country code; ISO 3166 digram) |
| 258 | AM1,Airman 1st class |
| 259 | AMA,American Medical Association,Australian Medical Association |
| 260 | AMAPS,Aircraft,Missile,Avionics Performance Simulation |
| 261 | 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 |
| 262 | AMCB,U.S. Army/Marine Corps Board |
| 263 | AMFR,Age-specific Marital Fertility Rate,Amplitude Modulation Following Response |
| 264 | AMFRS,Advanced Multi-Function Radio Frequency System,Automatic Multisensor Feature-based Recognition System |
| 265 | amh,Amharic language (ISO 639-2 code) |
| 266 | AML,Acute Myeloid Leukaemia |
| 267 | AMLCD,Active Matrix Liquid Crystal Display |
| 268 | AMLO,Andrés Manuel López Obrador (Mexican politician),Anti-Money Laundering Office (Thailand government agency) |
| 269 | AMO,Atlantic Multidecadal Oscillation |
| 270 | AMOLED,Active-matrix organic light-emitting diode |
| 271 | AMOS,Advanced MOrtar System,Air Force Maui Optical and Supercomputing observatory |
| 272 | AMP,Adenosine MonoPhosphate,Automated Mission Planner |
| 273 | AMRAAM,Advanced Medium-Range Air-to-Air Missile |
| 274 | AMRDEC,U.S. Aviation & Missile Research,Development,& Engineering Center |
| 275 | AMS,Agriculture Marketing Service,American Mathematical Society |
| 276 | AMSAA,U.S. Army Materiel Systems Analysis Activity |
| 277 | AMSO,U.S. Army Model and Simulation Office |
| 278 | AMSU,Advanced Microwave Sounding Unit |
| 279 | AMTE,UK Admiralty Marine Technology Establishment (1977-1984) |
| 280 | AN,Andorra (FIPS 10-4 country code),Netherlands Antilles (ISO 3166 digram) |
| 281 | an,Aragonese language (ISO 639-1 code) |
| 282 | aN,Attonewton |
| 283 | ANA,Administration for Native Americans,Afghan National Army,All Nippon Airways,Anti-Nuclear Anti-body,Australian National Airways,Australian Natives' Association |
| 284 | ANC,African National Congress |
| 285 | AND,Andorra (ISO 3166 trigram) |
| 286 | ANFO,Ammonium nitrate/fuel oil (explosive) |
| 287 | ANG,Air National Guard,Angola (IOC and FIFA trigram,but not ISO 3166),Netherlands Antillian guilder (ISO 4217 currency code) |
| 288 | ANGLiCo,Air/Naval Gunfire Liaison Company |
| 289 | ANL,Argonne National Laboratory |
| 290 | ANM,Acoustic Noise Monitor |
| 291 | ANOVA,ANalysis Of VAriance |
| 292 | ANS,Applied and Natural Sciences |
| 293 | ANSI,American National Standards Institute |
| 294 | ANT,Netherlands Antilles (ISO 3166 trigram),Antigua and Barbuda (IOC trigram,but not ISO 3166 or FIFA) |
| 295 | ANTM,America's Next Top Model |
| 296 | ANTY,Acronyms,No Thank You |
| 297 | ANWR,Arctic National Wildlife Refuge /ˈænwɑr/ |
| 298 | ANZ,Australia and New Zealand Banking Group |
| 299 | ANZAC,Australian and New Zealand Army Corps |
| 300 | AO,Angola (FIPS 10-4 country code; ISO 3166 digram),Approach Officer (submarine),Area of Operations |
| 301 | AOA,Air Officer in charge of Administration,Argonne National Laboratory,Angolan kwanza (ISO 4217 currency code),Award Of Arms (heraldry) |
| 302 | AOC,Air Operations Centre,Air Officer Commanding |
| 303 | AOD,Adrenalin O.D. (punk rock band) |
| 304 | AOI,Angle Of Incidence Arab Organization for Industrialization |
| 305 | AOL,America OnLine |
| 306 | AOR,Area of Responsibility |
| 307 | AOSTH,Adventures of Sonic the Hedgehog |
| 308 | AOTS,Attack of the Show! |
| 309 | AOU,American Ornithologists' Union |
| 310 | APB,All Points Bulletin (police jargon) |
| 311 | APC,Armoured Personnel Carrier,Armour Piercing Capped (ammunition) |
| 312 | APCNR,Armour-Piercing,Composite Non-Rigid (ammunition) |
| 313 | APCR,Armour-Piercing,Composite Rigid (ammunition) |
| 314 | APDS,Armour-Piercing,Discarding-Sabot (ammunition) |
| 315 | APEC,Asia Pacific Economic Cooperation |
| 316 | APEDS,AMSAA Performance Estimates Data System |
| 317 | APEX,Applied Physics Express |
| 318 | APFSDS,Armour-Piercing,Fin-Stabilised,Discarding Sabot (ammunition) |
| 319 | APHA,American Public Health Association |
| 320 | APHE,Armour-Piercing,High Explosive (ammunition) |
| 321 | APHIS,Animal and Plant Health Inspection Service |
| 322 | APOD,Aerial Port (Airport) Of Debarkation |
| 323 | APOE,Aerial Port (Airport) Of Embarkation |
| 324 | APOLLO,Apache Point Observatory Lunar Laser-ranging Operation |
| 325 | APP,Allied Procedural Publication |
| 326 | APR,Annual Percentage Rate |
| 327 | 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] |
| 328 | 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 |
| 329 | AQIM,Al-Qaeda in the Islamic Maghreb |
| 330 | ar,Arabic language (ISO 639-1 code) |
| 331 | AR,Argentina (FIPS 10-4 country code; ISO 3166 digram),Arkansas (postal symbol),Armour,Arunachal Pradesh (Indian state code) |
| 332 | Ar,Argon |
| 333 | ara,Arabic language (ISO 639-2 code) |
| 334 | ARAG,Advanced Research and Assessment Group |
| 335 | ARB,Administrative Review Board |
| 336 | ARBA,(a/i) Army Review Boards Agency |
| 337 | ARC,Arc-second Raster Chart,Appalachian Regional Commission |
| 338 | ARCA,Automobile Racing Club of America |
| 339 | ARCENT,United States Army Central Command |
| 340 | ARDA,Advanced Research and Development Activity (became DTO 2006) |
| 341 | ARE,UK Admiralty Research Establishment (-1991),United Arab Emirates (ISO 3166 trigram) |
| 342 | ARF,ASEAN Regional Forum |
| 343 | arg,Aragonese language (ISO 639-2 code) |
| 344 | ARG,Argentina (ISO 3166 trigram) |
| 345 | ARH,Armed Reconnaissance Helicopter |
| 346 | ARI,Acute Respiratory Infection,U.S. Army Research Institute for the Behavioral and Social Sciences |
| 347 | ARL,UK Admiralty Research Laboratory (1921-1977),U.S. Army Research Laboratory,UIUC Aviation Research Laboratory |
| 348 | ARM,Anti-Radiation Missile,Adjustable-rate mortgage,Armenia (ISO 3166 trigram) |
| 349 | ARNet,Acquisition Reform Network |
| 350 | ARP,Applied Research Programme |
| 351 | ARPA,Advanced Research Projects Agency |
| 352 | ARRC,ACE Rapid Reaction Corps |
| 353 | ARRF,Allied Rapid Reaction Force |
| 354 | ARRL,American Radio Relay League |
| 355 | ARS,Agricultural Research Service,Argentine peso (ISO 4217 currency code) |
| 356 | ARSC,Arctic Region Supercomputing Center |
| 357 | ARSPACE,U.S. Army Space Command |
| 358 | ART,Adaptive Resonance Theory,Anti-Retroviral Therapy |
| 359 | ARTCC,Air Route Traffic Control Center |
| 360 | AS,ActionScript |
| 361 | as,Adult swim,Assamese language (ISO 639-1 code),Attosecond |
| 362 | AS,American Samoa (postal symbol; ISO 3166 digram),Australia (FIPS 10-4 country code),Assam / Asom (Indian state code) |
| 363 | As,Arsenic |
| 364 | aS,Attosiemens |
| 365 | ASA,AcetylSalicylic Acid,American Standards Association,Army Security Agency,Atlantic Southeast Airlines |
| 366 | ASAP,As Soon As Possible |
| 367 | ASARS,Advanced Synthetic Aperture Radar System,Airborne Search and Rescue System |
| 368 | ASB,Associated Student Body,Alternative Service Book (Church of England) |
| 369 | ASBO,Anti-Social Behaviour Order |
| 370 | ASCAP,American Society of Composers,Authors,and Publishers |
| 371 | ASCC,Army Service Component Commander,Automatic Sequence Controlled Calculator,Air Standardization Coordinating Committee |
| 372 | ASCII,American Standard Code for Information Interchange |
| 373 | ASD,(U.S.) Assistant Secretary of Defense,autism spectrum disorder |
| 374 | ASDIC,Allied Submarine Detection Investigation Committee (Sonar) |
| 375 | ASEAN,Association of Southeast Asian Nations |
| 376 | ASFAR,Americans for a Society Free of Age Restrictions |
| 377 | ASG,Area Support Group |
| 378 | ASIC,Australian Securities and Investments Commission,Aviation Security Identification Card |
| 379 | ASIO,Australian Security Intelligence Organisation,Audio stream input output |
| 380 | ASIP,Advanced System Improvement Program,Army Stationing and Installation Plan,Application-specific instruction-set processor |
| 381 | ASM,Air-to-Surface Missile,American Samoa (ISO 3166 trigram),American Society for Metals,American Society for Microbiology |
| 382 | asm,Assamese language (ISO 639-2 code) |
| 383 | ASMB,American Society for Matrix Biology,Adult Swim Message Board |
| 384 | ASME,American Society of Mechanical Engineers,American Society of Magazine ors |
| 385 | ASN,Associate of Science in Nursing |
| 386 | 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 |
| 387 | 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 |
| 388 | ASPI,Australian Strategic Policy Institute |
| 389 | ASR,Alkali-silica reaction,Anti Slip Regulation |
| 390 | ASRAAM,Advanced Short-Range Air-to-Air Missile |
| 391 | ASSC,Association for the Scientific Study of Consciousness |
| 392 | AST,Atlantic Standard Time (UTC−4 hours) |
| 393 | ASTIA,Armed Services Technical Information Agency |
| 394 | ASTM,American Society for Testing and Materials |
| 395 | ASTREA,Aerial Support To Regional Enforcement Agencies (sheriff's air support unit) |
| 396 | ASUW,AntiSUrface Warfare |
| 397 | ASVAB,Armed Services Vocational Aptitude Battery(taken by juniors in high school in the USA) |
| 398 | ASW,AntiSubmarine Warfare |
| 399 | ASWORG,(U.S.) AntiSubmarine Warfare Operations Research Group |
| 400 | ASX,Advanced Stream Redirector,Australian Securities Exchange |
| 401 | At,Astatine |
| 402 | aT,Attotesla |
| 403 | ATA,Advanced Technology Attachment (IBM Personal Computer),Afghan Transitional Authority,Allen Telescope Array,Antarctica (ISO 3166 trigram) |
| 404 | ATAC,Air Transportable Acoustic Communications |
| 405 | ATACMS,Army TACtical Missile System |
| 406 | ATAPI,Advanced Technology Attachment Packet Interface |
| 407 | ATAS,Air-To-Air Stinger (missile) |
| 408 | ATAT,Aiken Tactical Airsoft Team / Star Wars vehicle |
| 409 | ATB,Active Time Battle,British Antarctic Territory (ISO 3166 trigram; merged with AQ in 1979) |
| 410 | ATCCIS,Army Tactical Command and Control Information System |
| 411 | ATESS,Aerospace and Telecommunications Engineering Support Squadron |
| 412 | ATG,Antigua and Barbuda (ISO 3166 and FIFA trigram) |
| 413 | ATGM,Anti-Tank Guided Missile |
| 414 | ATGW,Anti-Tank Guided Weapon |
| 415 | ATI,Allied Telesyn International,Inc.,Array Technologies Incorporated. (ATI Technologies) |
| 416 | Atisbo,a Local Government Area in Nigeria named for constituent communities (Ago-Are,Tede,Irawo,Sabe,Baasi,Ofiki and Owo) |
| 417 | ATK,Attack |
| 418 | ATLAS,All-Terrain Lifter Army System,Assessment Tool for LAnd Systems |
| 419 | ATM,Automated Teller Machine,Asynchronous Transfer Mode,At The Moment |
| 420 | ATN,Dronning Maud Land (ISO 3166 trigram; merged with AQ in 1983) |
| 421 | ATSD,(U.S.) Assistant Secretary of Defense |
| 422 | ATSDR,Agency for Toxic Substances and Disease Registry |
| 423 | ATV,All-Terrain Vehicle |
| 424 | Au,Gold (Latin Aurum) |
| 425 | AUD,Australian dollar (ISO 4217 currency code) |
| 426 | AUS,Australia (ISO 3166 trigram) |
| 427 | Auslan,Australian Sign Language |
| 428 | AUT,Austria (ISO 3166 trigram) |
| 429 | AUTL,Army Universal Task List |
| 430 | Av,Aperture value (photographic mode) |
| 431 | aV,Attovolt |
| 432 | av,Avar language (ISO 639-1 code) |
| 433 | AVA,American Viticultural Area |
| 434 | ava,Avar language (ISO 639-2 code) |
| 435 | AVB,Audio Video Bridging |
| 436 | AVDLR,Aviation Depot Level Repair |
| 437 | ave,Avestan language (ISO 639-2 code) |
| 438 | AVGP,Armoured Vehicle,General Purpose |
| 439 | AVI,Audio Video Interleave |
| 440 | AVIM,Aviation Intermediate Maintenance |
| 441 | AVLB,Armoured Vehicle Launched Body |
| 442 | AVM,Air Vice-Marshal,Arteriovenous malformation |
| 443 | AVO,Apprehended Violence Order |
| 444 | AVP,Arubaanse Volkspartij |
| 445 | AVP,Association of Volleyball Professionals |
| 446 | AVRE,Armoured Vehicle Royal Engineers |
| 447 | AVUM,Aviation Unit Maintenance |
| 448 | AVVO,Acute Vaginal Venereal Outbreak |
| 449 | AW,Aruba (ISO 3166 digram) |
| 450 | aW,Attowatt |
| 451 | AWA,American Wrestling Association |
| 452 | AWC,Air Warfare Centre |
| 453 | AWD,All Wheel Drive |
| 454 | AWE,Advanced Warfighting Experiment |
| 455 | AWG,Aruban guilder (ISO 4217 currency code) |
| 456 | AWP,Awaiting Parts (SM&R code) |
| 457 | AWSIM,Air Warfare SIMulation |
| 458 | AWST,Australian Western Standard Time |
| 459 | AWW,Above Water Warfare |
| 460 | AX,Åland Islands (ISO 3166 digram) |
| 461 | AXP,Ambulance eXchange Point |
| 462 | AY,Antarctica (FIPS 10-4 territory code) |
| 463 | ay,Aymara language (ISO 639-1 code) |
| 464 | AYBABTU,All Your Base Are Belong To Us |
| 465 | aym,Aymara language (ISO 639-2 code) |
| 466 | AYU,As Yet Unknown |
| 467 | AZ,Arizona (postal symbol),Azerbaijan (ISO 3166 digram),Alkmaar Zaanstreek (Dutch football club) |
| 468 | az,Azerbaijani language (ISO 639-1 code) |
| 469 | AZE,Azerbaijan (ISO 3166 trigram) |
| 470 | aze,Azerbaijani language (ISO 639-2 code) |
| 471 | AZN,Azerbaijani manat (ISO 4217 currency code) |
| 472 | AZUR,Actions en zone urbaine (French,Urban Operations) |
| 473 | 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] |
| 474 | BB,Barbados (ISO 3166 digram; FIPS 10-4 country code),Boys' Brigade (Christian youth organization),Brigitte Bardot (actress),Bumblebee |
| 475 | BBB,Better Business Bureau,Blood-brain barrier |
| 476 | BBC,Breeding Bird Census,British Broadcasting Corporation,Bumper to Back of Cab (trucking measurement) |
| 477 | BBD,Barbadian dollar (ISO 4217 currency code),Bowel Bladder Dysfunction |
| 478 | BBL,Be Back Later,Bird Banding Laboratory,British Basketball League,BBN , Bolt,Beranek and Newman,BBQ , Barbecue[1] |
| 479 | 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) |
| 480 | BBYO,B'nai B'rith Youth Organization |
| 481 | BC,Before Christ,Blind Copy (in emailers),Boston College,Botswana (FIPS 10-4 country code; from Bechuanaland),British Columbia (postal symbol) |
| 482 | BCA,Bachelor of Computer Application,Black Coaches & Administrators,BCC , Blind Carbon Copy |
| 483 | BCCI,Bank of Credit and Commerce International,Board of Control for Cricket in India,BCD , Binary-Coded Decimal |
| 484 | 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 |
| 485 | BH,Bahrain (ISO 3166 digram),Belize (FIPS 10-4 country code),BHD , Bahraini dinar (ISO 4217 currency code),BHR , Bahrain (ISO 3166 trigram) |
| 486 | BNF,Backus-Naur Form (computing),British National Formulary,BNICE , Biological,Nuclear,Incendiary,Chemical,and Explosive Agents |
| 487 | 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) |
| 488 | 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) |
| 489 | BoAML,Bank of America Merrill Lynch |
| 490 | 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 |
| 491 | BOGs,Bunch of Guys |
| 492 | BOI,Balance Of Investment,Basis Of Issue,BOL , Bolivia (ISO 3166 trigram) |
| 493 | 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 |
| 494 | BOQ,Bill Of Quotations,Bachelor Officers' Quarters,Bank Of Queensland,bos , Bosnian language (ISO 639-2 code),BOS , Battlefield Operating System |
| 495 | BOT,Balance of Trade,Botswana (IOC and FIFA trigram,but not ISO 3166),Build Operate Transfer,Bank of Thailand,BP[edit] |
| 496 | 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 |
| 497 | BPV,Battlefield Planning Visualization,Bovine papillomavirus,BQ[edit] |
| 498 | 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 |
| 499 | 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) |
| 500 | 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) |
| 501 | BS,The Bahamas (ISO 3166 digram),Bassas da India (FIPS 10-4 territory code),Bachelor of Science degree,British subject |
| 502 | BSA,Birmingham Small Arms (motorcycles company),Boy Scouts of America,Brigade Support Area |
| 503 | BSatCoP,Benjamin Sniddlegrass and the Cauldron of Penguins |
| 504 | BSD,Bahamian dollar (ISO 4217 currency code),Berkeley Software Distribution (distinct from BSoD) |
| 505 | BSE,Bovine Spongiform Encephalopathy,better known as mad cow disease |
| 506 | BSNL-Bharat Sanchar Nigam Limited,Bachelor of Science in Nursing,BSoD , Blue Screen of Death (distinct from BSD) |
| 507 | BSP,Between-Show Promotion,Binary Space Partitioning,Board Support Package,British Standard Pipe (screw thread),Business-sponsored,Bone sialoprotein |
| 508 | BST,Binary search tree,Blended Sales Tax,Bovine somatotropin,British Summer Time,BSW , British Standard Whitworth (screw thread),BSX , Bendigo Stock Exchange,BT[edit] |
| 509 | Bt,Baronet,Bacillus thuringiensis |
| 510 | Bullshit- |
| 511 | C,Carbon,Coulomb,One Hundred (in Roman numerals) |
| 512 | c,Centi |
| 513 | C2C,Consumer-To-Consumer electronic commerce,Cam-To-Cam internet chat |
| 514 | c2c,the British rail company formerly known as LTS Rail |
| 515 | Ca,Calcium |
| 516 | 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 |
| 517 | ca,Catalan language (ISO 639-1 code) |
| 518 | 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 |
| 519 | CAAT,or Campaign Against Arms Trade,Center for Alternatives to Animal Testing |
| 520 | CAC,California Association of Criminalists,Chronic Asymptomatic [Disease] Carrier,CACM Central American Common Market |
| 521 | CACM,Communications of the ACM |
| 522 | 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 |
| 523 | CADCAM,Computer-Aided Design/Computer-Aided Manufacturing |
| 524 | CADMID,Concept,Assessment,Demonstration,Manufacture,In service,Disposal (life cycle mnemonic) |
| 525 | CADPAT,CAnadian Disruptive PATtern |
| 526 | CAE,Canadian Aviation Electronics (originally),Certificate in Advanced English |
| 527 | CAEn,Close Action Engagement (constructive simulation) |
| 528 | CAF,Central African Republic (ISO 3166 trigram),Confederation of African Football (or French Confédération Africaine de Football) |
| 529 | CAFAD,Combined Arms For Air Defence |
| 530 | CAFDE,Canadian Association of Film Distributors and Exporters,Computer Aided Federation Development Environment |
| 531 | CAFE,Corporate Average Fuel Economy standard |
| 532 | CAI,Computer Assisted Instruction |
| 533 | CAIR,Council on American-Islamic Relations |
| 534 | CALABARZON,A region in the Philippines: CAvite,LAguna,BAtangas,Rizal,queZON |
| 535 | CALL,(U.S.) Center for Army Lessons Learned |
| 536 | CALM,Communications,Air-interface,Long and Medium range |
| 537 | CalPERS,California Public Employees' Retirement System |
| 538 | Caltrans,California Department of Transpotation |
| 539 | CAM,Chemical Agent Monitor,Complementary and alternative medicine,Computer-Aided Manufacturing,Crassulacean acid metabolism (type of photosynthesis) |
| 540 | CAMRA,CAMpaign for Real Ale |
| 541 | CAN,Canada (ISO 3166 trigram) |
| 542 | CANA,Convulsive Antidote,Nerve Agent |
| 543 | CANDU,CANada Deuterium Uranium (nuclear reactor design) |
| 544 | Canola,Canadian oil,low acid (referring to a specific cultivar of rapeseed bred to have a low erucic acid content) |
| 545 | CAPES,CAPability Evaluation System,Combined Arms Planning and Execution System |
| 546 | 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) |
| 547 | CARMONETTE,Computerized Monte Carlo Simulation |
| 548 | CARP,Computed Air Release Point |
| 549 | CART,Championship Auto Racing Teams (now defunct) |
| 550 | CAS,Chemical Abstracts Service,Chief of the Air Staff,Close Air Support |
| 551 | CASA,Civil Aviation Safety Authority |
| 552 | CASE,Cellular ammunition storage equipment,Computer-Aided Software Engineering |
| 553 | CASS,Command Activated Sonobuoy System |
| 554 | CASTFOREM,Combined Arms and Support Task FORce Evaluation Model |
| 555 | CASTOR,Canadian Automatic Small Telescopes for Orbital Research |
| 556 | cat,Catalan language (ISO 639-2 code) |
| 557 | CAT,Community Acceptance Testing,Computer-Assisted (or Axial) Tomography |
| 558 | CATK,Counterattack |
| 559 | CATS,Computer Active Technology Suspension |
| 560 | CATT,(a/i) Combined Arms Tactical Trainer |
| 561 | CAV,Cavalry |
| 562 | CAW,Canadian Auto Workers (trade union) |
| 563 | CB,Citizens' Band radio,Cambodia (FIPS 10-4 country code) |
| 564 | CBC,Canadian Broadcasting Corporation,Christmas Bird Count,Cipher-Block Chaining,Cornering Brake Control |
| 565 | CBE,Commander of the Order of the British Empire,Cab Beside Engine (see truck) |
| 566 | CBGB,Country,Blue Grass,and Blues (former New York City nightclub) |
| 567 | CBLA,Comparative bullet lead analysis |
| 568 | CBM,Canadian Baptist Ministries |
| 569 | CBM,Commodore Business Machines |
| 570 | CBML,Coalition Battle Management Language |
| 571 | CBN,CardsApp Brand Number |
| 572 | CBOL,Consortium for the Barcode of Life |
| 573 | CBOT,Chicago Board of Trade |
| 574 | CBR,Case-Based Reasoning |
| 575 | CBRN,Chemical,Biological,Radiological,or Nuclear (weapon or event) |
| 576 | CBRNE,Chemical,Biological,Radiological,Nuclear or [high-yield] Explosive (weapon or event) |
| 577 | CBS,Columbia Broadcasting System,Corps Battle Simulation |
| 578 | CBUS,Columbus,Ohio |
| 579 | CC,carbon copy |
| 580 | CCA,Counter Command Activity |
| 581 | CCC,Canterbury Clothing Company,Civilian Conservation Corps (U.S.,1930s and 1940s),Corpus Christi College,Oxford |
| 582 | CCCP,Central Committee of the Communist Party,Cyrillic for SSSR (Soyuz Sovetskikh Sotsialisticheskikh Respublik,Russian Союз Советских Социалистических Республик,Union of Soviet Socialist Republics) |
| 583 | CCD,Charge-Coupled Device,Confraternity of Christian Doctrine (Catechism) |
| 584 | CCF,Cartoon Cartoon Fridays |
| 585 | CCG,Canadian Coast Guard,Collectible Card Game |
| 586 | CCGC,Canadian Coast Guard Cutter,Canadian Coast Guard College |
| 587 | CCGH,Canadian Coast Guard Hovercraft |
| 588 | CCGS,Canadian Coast Guard Ship,Christ Church Grammar School |
| 589 | CCH,Computer-Controlled Hostile |
| 590 | 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) |
| 591 | CCII,Command and Control Information Infrastructure,Community Capital Investment Initiative |
| 592 | 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 |
| 593 | CCIT,Comité consultatif international télégraphique (French for International Telegraph Consultative Committee,merged with the CCIF in 1956 to form the CCITT) |
| 594 | 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) |
| 595 | CCK,Cholecystokinin,Cocos (Keeling) Islands (ISO 3166 trigram) |
| 596 | 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 |
| 597 | CCOC,Canadian Children's Opera Chorus,Crosley Car Owners Club |
| 598 | CCOP,Coalition Common Operating/Operational Picture |
| 599 | CCP,Casualty Collection Point,Communications Checkpoint,Contingency Communications Package |
| 600 | CCPA,Consumer Credit Protection Act |
| 601 | CCR,Creedence Clearwater Revival |
| 602 | CCRAp,Canadian Conservative Reform Alliance party |
| 603 | CCRP,Command and Control Research Program |
| 604 | CCRTS,Command and Control Research and Technology Symposium |
| 605 | CCSCS,Consultative Committee for Space Data Systems |
| 606 | CCSCS,Coordinadora de Centrales Sindicales del Cono Sur |
| 607 | CCSK,Cyclic Code Shift Keying |
| 608 | CCT,Current Commitments Team |
| 609 | Cd,Cadmium |
| 610 | cd,Candela |
| 611 | CD,Compact Disc |
| 612 | CD1,Cluster of Differentiation 1 (a small gene family) |
| 613 | CDA,UK Centre for Defence Analysis |
| 614 | CDC,Control Data Corporation,Cult of the Dead Cow |
| 615 | CDD,Capabilities Development Document |
| 616 | CDE,Chemical Defence Equipment |
| 617 | CDF,California Department of Forestry [and Fire Protection],Common Data Format,Democratic Republic of Congo franc congolais (ISO 4217 currency code) |
| 618 | CDipAF,Certified Diploma in Accounting and Finance |
| 619 | CDL,Commercial driver's license |
| 620 | CDM,Clean Development Mechanism (Kyoto protocol),Cold Dark Matter (astronomy) |
| 621 | CDMA,Code Division Multiple Access |
| 622 | CDMSII,Cryogenic Dark Matter Search II |
| 623 | Cdr,Commander |
| 624 | CDS,Chief of the Defence Staff,Credit default swap |
| 625 | CDT,Central Daylight Time (UTC−5 hours) |
| 626 | Cdt,Commandant |
| 627 | Ce,Cerium |
| 628 | ce,Chechen language (ISO 639-1 code) |
| 629 | CE,Christian/Common Era |
| 630 | CEA,Campaign Effectiveness Analysis |
| 631 | CECOM,U.S. Army Communications and Electronics Command |
| 632 | CEI,Competitive Enterprise Institute |
| 633 | CENTCOM,United States Central Command |
| 634 | CENTO,Central Treaty Organization (Baghdad Pact) |
| 635 | CEO,Chief Executive Officer |
| 636 | CEP,Circular Error Probable |
| 637 | CERCLA,U.S. Comprehensive Environmental Response,Compensation,and Liability Act (Superfund) |
| 638 | CERDEC,U.S. Communications-Electronics Research,Development and Engineering Center |
| 639 | CERT,Computer Emergency Response Team |
| 640 | ces,Czech language (ISO 639-2 code) |
| 641 | CESS,Centre for Earth Science Studies (India) |
| 642 | CEST,Central European Summer Time |
| 643 | CET,Central European Time |
| 644 | CEWC,(a/i) Council for Education in World Citizenship |
| 645 | Cf,Californium |
| 646 | CF,Canadian Forces,Central African Republic (ISO 3166 digram),Republic of the Congo (FIPS 10-4 country code) |
| 647 | CFA,Cat Fanciers' Association,Chartered Financial Analyst,Colour Filtering Array,County Fire Authority,Covering Force Area |
| 648 | CFAR,Christine's,Federal Acquisition Regulation |
| 649 | CFC,ChloroFluoroCarbon,Canadian Fish Company |
| 650 | CFES,Continuous Flow Electrophoresis System |
| 651 | CFFZ,Call For Fire Zone |
| 652 | CFG,Context-free grammar,Control flow graph |
| 653 | CFHT,Canada-France-Hawaii Telescope |
| 654 | CFI,Center for Inquiry (CSICOP) |
| 655 | CFL,Canadian Football League,Co-ordinated Fire Line |
| 656 | CFLCC,Coalition Forces Land Component Command |
| 657 | CFM,Certified Facilities Manager [(IFMA)]http://www.ifma.org/ |
| 658 | CFO,Chief Financial Officer |
| 659 | CFP,Call for papers,College Football Playoff,Common Fisheries Policy (EU) |
| 660 | CFRP,Carbon fibre reinforced plastic |
| 661 | CFS,Chronic Fatigue Syndrome |
| 662 | CFSP,Common Foreign and Security Policy |
| 663 | CFU,Colony Forming Unit in Microbiology |
| 664 | CFV,Cavalry Fighting Vehicle |
| 665 | CFZ,Critical Friendly Zone |
| 666 | CG,Client Group,Computer Graphics,Controls Group,Democratic Republic of the Congo (FIPS 10-4 country code),Republic of the Congo (ISO 3166 digram) |
| 667 | CGH,Comparative Genomic Hybridisation |
| 668 | CGIG,Cross-Government Implementation Group |
| 669 | CGO,Republic of the Congo (IOC and FIFA trigram,but not ISO 3166) |
| 670 | CGS,Chief of the General Staff |
| 671 | CGT,Capital Gains Tax |
| 672 | ch,ch(L) is used to denote the Chern character of a line bundle |
| 673 | ch,Chamorro language (ISO 639-1 code) |
| 674 | CH,Chieftain tank,China (FIPS 10-4 country code),Switzerland (ISO 3166 digram; from Latin Confoederatio Helvetica) |
| 675 | cha,Chamorro language (ISO 639-2 code) |
| 676 | CHAMPUS,(U.S.) Civilian Health and Medical Program of the Uniformed Services (now known as TRICARE) |
| 677 | CHAOS,Cambridge Heart Anti-Oxidant Study |
| 678 | CHAPS,Clearing House Automated Payment System |
| 679 | CHDK,Canon Hack Development Kit (Canon camera firmware hack) |
| 680 | che,Chechen language (ISO 639-2 code) |
| 681 | CHE,Switzerland (ISO 3166 trigram; from Latin Confoederatio Helvetica) |
| 682 | CHF,Swiss franc (ISO 4217 currency code) |
| 683 | CHI,Columbia Helicopters,Inc |
| 684 | CHiP,California Highway Patrol |
| 685 | CHIPS,Cosmic Hot Interstellar Plasma Spectrometer |
| 686 | CHL,Chile (ISO 3166 trigram) |
| 687 | CHLA,Core Historical Literature of Agriculture |
| 688 | CHN,China (ISO 3166 trigram) |
| 689 | CHOGM,Commonwealth Heads of Government Meeting |
| 690 | CHP,California Highway Patrol,Combined Heat and Power |
| 691 | CHPSO,California Hospital Patient Safety Organization |
| 692 | CHRS,Canadian Heart Rhythm Society |
| 693 | CHT,Certified Hand Therapist |
| 694 | chu,Old Church Slavonic language (ISO 639-2 code) |
| 695 | chv,Chuvash language (ISO 639-2 code) |
| 696 | CI,Chile (FIPS 10-4 country code),Côte d'Ivoire (ISO 3166 digram),Counter-Intelligence,101 (in Roman numerals) |
| 697 | Ci,Curie |
| 698 | CIA,Cairo International Airport,Central Intelligence Agency,Culinary Institute of America |
| 699 | CIAO,Critical Infrastructure Assurance Office,Component-Integrated ACE ORB |
| 700 | CIB,Complete In Box (Internet auction/trading listings) |
| 701 | CIBC,Canadian Imperial Bank of Commerce |
| 702 | 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. |
| 703 | CIEF,Comité international d'enregistrement des fréquences (International Frequency Registration Board) |
| 704 | CIF,Cost,Insurance,and Freight (Paid) (shipping) |
| 705 | CINC,Commander in Chief |
| 706 | CINEOS,Campo Imperatore Near-Earth Object Survey |
| 707 | CIO,Chief information officer,Congress of Industrial Organizations |
| 708 | CIPE,(European) Centre for International Political Economy |
| 709 | CIR,(Commander's) Critical Information Requirements |
| 710 | CIR,Corotating Interaction Region |
| 711 | CIS,Canadian Interuniversity Sport,Commonwealth of Independent States,Command and Information System,Communication and Information System |
| 712 | CISA,(U.S.) C4I Integration Support Activity |
| 713 | CISB,Complete In Sealed Box (Internet auction/trading listings) |
| 714 | CISPR,Comité international spécial des perturbations radioélectriques (Special International Committee on Radio Interference) |
| 715 | CISSP,Certified Information Systems Security Professional |
| 716 | CIV,Côte d'Ivoire (ISO 3166 trigram) |
| 717 | CIVETS,Colombia,Indonesia,Vietnam,Egypt,Turkey,South Africa (economics) |
| 718 | CIVPOP,Civilian Population |
| 719 | CIWS,Close-In Weapon System |
| 720 | CJ,Cayman Islands (FIPS 10-4 country code),Criminal Justice |
| 721 | CJC,Canadian Jewish Congress,Cold Junction Compensation |
| 722 | CJCS,Chairman of the Joint Chiefs of Staff |
| 723 | CJD,Chronological Julian Day,Creutzfeldt-Jakob Disease |
| 724 | CJO,Chief of Joint Operations |
| 725 | CJTF,Combined Joint Task Force |
| 726 | CK,Cocos (Keeling) Islands (FIPS 10-4 country code),Cook Islands (ISO 3166 digram) |
| 727 | CKA,commonly known as, Canada Kicks Ass |
| 728 | CKND,Codename: Kids Next Door |
| 729 | CL,Chile (ISO 3166 digram),Co-ordination Line,One Hundred and Fifty (in Roman numerals) |
| 730 | Cl,Chlorine |
| 731 | CLA,Clutterers Anonymous |
| 732 | CLEC,Competitive Local Exchange Carrier |
| 733 | CLEMARS,California Law Enforcement Mutual Aid Radio System |
| 734 | CLIC,Compact LInear Collider |
| 735 | CLO,Cornell Lab of Ornithology |
| 736 | CLOS,Command to Line-Of-Sight (missile control system) |
| 737 | CLP,Chilean peso (ISO 4217 currency code),Common [Operating/Operational] Land Picture |
| 738 | CLPFC,CentroLateral PreFrontal Cortex |
| 739 | CLRP,College Loan Repayment Program |
| 740 | CM,Cameroon (FIPS 10-4 country code; ISO 3166 digram),Cruise Missile,Nine Hundred (in Roman numerals) |
| 741 | Cm,Curium |
| 742 | CMA,U.S. Chemical Materials Agency,Country Music Association (also used to refer to the organization's annual awards),Crystal Meth Anonymous |
| 743 | CMHC,Canada Mortgage and Housing Corporation |
| 744 | CMIIAW,Correct me if I am wrong |
| 745 | CMIS,Common management information service |
| 746 | CMJ,Christopher Martin-Jenkins (BBC sports commentator) |
| 747 | CML,Chemical,Chronic Myelogenous Leukemia (formerly Chronic Myeloid Leukemia) |
| 748 | CMM,Capability Maturity Model |
| 749 | CMMC,Corps Materiel Management Centre |
| 750 | CMML,Chronic MyeloMonocytic Leukemia,Continuous Media Markup Language |
| 751 | CMOS,Canadian Meteorological and Oceanographic Society,(The) Chicago Manual of Style,Complementary Metal Oxide Semiconductor |
| 752 | CMP,Common [Operating/Operational] Maritime Picture |
| 753 | CMPD,Charlotte Mecklenburg Police Department |
| 754 | CMPD,Chronic Myeloproliferative Disease |
| 755 | CMR,Cameroon (ISO 3166 trigram),Coaxial Main Rotors (helicopter type) |
| 756 | CMS,Centers for Medicare and Medicaid Services,The Chicago Manual of Style |
| 757 | CMT,Country Music Television |
| 758 | CMU,Carnegie Mellon University,Central Michigan University,Concrete Masonry Unit |
| 759 | 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) |
| 760 | CMYK,Cyan Magenta Yellow Key/blacK (colour model) |
| 761 | CN,Canadian National (railway; also the AAR reporting mark for said company),China (ISO 3166 digram),Comoros (FIPS 10-4 country code) |
| 762 | 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 |
| 763 | CNBC,(a/i) Consumer News and Business Channel |
| 764 | CND,Campaign for Nuclear Disarmament,Computer Network Defence |
| 765 | CNE,Canadian National Exhibition,Computer Network Exploitation,Certified Network Engineer |
| 766 | CNF,Cost and Freight |
| 767 | CNI,Clinical Nursing Intern |
| 768 | CNI,Communications,Navigation and Identification |
| 769 | CNN,Cable News Network,Cellular Nonlinear Network |
| 770 | CNV,Copy-Number Variable (genetics) |
| 771 | CNY,Chinese yuan renminbi (ISO 4217 currency code) |
| 772 | Co,Cobalt |
| 773 | co,Corsican language (ISO 639-1 code) |
| 774 | COB,Close Of Business [day] |
| 775 | COBRA,Consolidated Omnibus Budget Reconciliation Act of 1985 |
| 776 | COD,Cash On Delivery,Democratic Republic of the Congo (ISO 3166 trigram) |
| 777 | CoDA,Co-Dependents Anonymous |
| 778 | COGENT,Cognitive Objects within a Graphical EnviroNmenT |
| 779 | COIL,Chemical Oxygen Iodine Laser |
| 780 | COK,Cook Islands (ISO 3166 trigram) |
| 781 | COL,Colombia (ISO 3166 trigram) |
| 782 | COLA,Cost Of Living Adjustment |
| 783 | COM,Comoros (ISO 3166 trigram),Component Object Model |
| 784 | COMECON,Council for Mutual Economic Assistance (economic counterpart of the Warsaw Pact,1949-1991) |
| 785 | CONAD,U.S. Continental Air Defense Command |
| 786 | CONCACAF,Confederation Of North,Central American and Caribbean Association Football |
| 787 | CONUS,Continental United States |
| 788 | COO,Chief Operating Officer |
| 789 | COP,Colombian peso (ISO 4217 currency code),Common Operating/Operational Picture |
| 790 | COPE,U.K. Committee On Publication Ethics |
| 791 | COPUS,U.K. Committee on the Public Understanding of Science |
| 792 | cor,Cornish language (ISO 639-2 code) |
| 793 | CORD,Common Operational Requirements Document |
| 794 | CORE,Consortium for Oceanographic Research and Education |
| 795 | COROT,COnvection,ROtation and planetary Transits |
| 796 | COS,Cooper Ornithological Society |
| 797 | cos,Corsican language (ISO 639-2 code),Cosine |
| 798 | COSER,COoperative SERvice |
| 799 | CoT,Car of Tomorrow (former NASCAR race car design) |
| 800 | COTS,Commercial Off The Shelf |
| 801 | CP,Canadian Pacific,Check Point,Command Post,Club Penguin |
| 802 | CPA,Certified Public Accountant |
| 803 | CPCU,Certified Property Casualty Underwriter |
| 804 | CPD,Capabilities Production Document |
| 805 | CPE,Certificate of Proficiency in English |
| 806 | CPE,Certified Professional Ergonomist |
| 807 | CPF,Calibration Parameter File,Canadian Patrol Frigate |
| 808 | CPG,Clinical Practice Guideline |
| 809 | CPI,CERDEC Command,Power and Integration |
| 810 | CPIM,Certification on Production and Inventory Management |
| 811 | CPIR,Computationally-Private Information Retrieval |
| 812 | CPON,Certified Pediatric Oncology Nurse |
| 813 | CPPCC,Chinese People's Political Consultative Conference |
| 814 | CPR,Canadian Pacific Railway |
| 815 | CPR,Cardiopulmonary resuscitation |
| 816 | CPSM,Continuous Phase Shift Modulation |
| 817 | CPSU,Communist Party of the Soviet Union |
| 818 | CPT,Contingency Planning Team |
| 819 | CPU,Contract Postal Unit |
| 820 | CPV,Cape Verde (ISO 3166 trigram) |
| 821 | CPX,Command Post eXercise |
| 822 | CQ,Carrier Qualification,Central Queensland,Charge of Quarters,Congressional Quarterly,Constellation Airlines (IATA airline designator),Northern Mariana Islands (FIPS 10-4 territory code) |
| 823 | Cr,Chromium |
| 824 | CR,Coral Sea Islands (FIPS 10-4 territory code),Costa Rica (ISO 3166 digram) |
| 825 | cr,Cree language (ISO 639-1 code) |
| 826 | CRAM,Combined Radiometric Correction Model |
| 827 | 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) |
| 828 | CRD,Capstone Requirements Document |
| 829 | cre,Cree language (ISO 639-2 code) |
| 830 | CREB,Cyclic AMP-response Element Binding (protein) |
| 831 | CREEP,Committee for the Re-Election of the President,a pejorative nickname used by opponents |
| 832 | CREN,Christian Real Estate Network Real Estate Association |
| 833 | CRI,China Radio International,Costa Rica (ISO 3166 trigram) |
| 834 | CRIPL,Consolidated Remain-In-Place List |
| 835 | CRM,Cardiac Rhythm Management,Customer Relationship Management |
| 836 | CRO,Croatia (IOC and FIFA trigram,but not ISO 3166) |
| 837 | CRP,Committee for the Re-Election of the President,Control and Reporting Post |
| 838 | CRT,Cardiac Resynchronization Therapy,Cathode Ray Tube,Chinese Remainder Theorem |
| 839 | CRTC,Canadian Radio-television and Telecommunications Commission |
| 840 | Cs,Caesium |
| 841 | cs,Czech language (ISO 639-1 code) |
| 842 | 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 |
| 843 | CSC,Closed Spacelike Curve (relativity),Compact system camera,Computer Sciences Corporation,Computer Security Centre,CSCC Canadian Society of Clinical Chemists |
| 844 | CSERIAC,(U.S. DoD) Crew Systems Ergonomics Information Analysis Center |
| 845 | CSG,Corps Support Group |
| 846 | CSI,see entry |
| 847 | CSICOP,Committee for the Scientific Investigation of Claims of the Paranormal (became the Committee for Skeptical Inquiry in 2006) |
| 848 | CSIP,Commercial Stable Image Platform (AMD) |
| 849 | CSK,Czechoslovakia (ISO 3166 trigram; obsolete since 1993) |
| 850 | CSL,U.K. Central Science Laboratory |
| 851 | CSPI,Center for Science in the Public Interest |
| 852 | CSR,Control Supply Rate |
| 853 | CSR,Corporate Social Responsibility [1] |
| 854 | CSRC,Conflict Studies Research Centre |
| 855 | CSRF,Cross-Site Request Forgery |
| 856 | CST,Central Standard Time (UTC−6 hours) |
| 857 | 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) |
| 858 | CTBT,Comprehensive [Nuclear] Test Ban Treaty |
| 859 | CTDB,Compact Terrain Data Base (file format) |
| 860 | CTE,Canton and Enderbury Islands (ISO 3166 trigram; obsolete 1984),Chronic traumatic encephalopathy |
| 861 | CTGF,connective tissue growth factor |
| 862 | CTI,Co-operative Target Identification |
| 863 | CTIL,Critical Tracked Items List |
| 864 | CTIS,Central Tire Inflation System |
| 865 | CTMS,Clinical Trial Management System |
| 866 | CTO,Chief Technical Officer,Chief Technology Officer |
| 867 | CTS,Clear-To-Send,Collective Training Standards,Communications Technology Service,Contract Technical Services,Conversation Time Sharing,COSMIC Top Secret |
| 868 | CTSS,Compatible Time-Sharing System |
| 869 | CTU,Counter Terrorist Unit (fictional branch of the Central Intelligence Agency in the television action series 24) |
| 870 | CTVT,Canine Transmissible Venereal Tumour |
| 871 | CU,Carrie Underwood,Cuba (FIPS 10-4 country code; ISO 3166 digram) |
| 872 | Cu,Copper (Latin Cuprum) |
| 873 | cu,Old Church Slavonic language (ISO 639-1 code) |
| 874 | CUB,Cuba (ISO 3166 trigram) |
| 875 | CUCV,Commercial Utility Cargo Vehicle |
| 876 | CUP,Cuban peso (ISO 4217 currency code) |
| 877 | CUPS,Common Unix Printing System |
| 878 | CUPW,Canadian Union of Postal Workers |
| 879 | CUREA,Consortium for Undergraduate Research and Education in Astronomy |
| 880 | CuW,Copper-tungsten pseudo-alloy (from the chemical symbols of the two component elements) |
| 881 | CUW,Curaçao (ISO 3166 trigram) |
| 882 | cv,Chuvash language (ISO 639-1 code) |
| 883 | CV,curriculum vitae (résumé) |
| 884 | CVE,Cape Verde escudo (ISO 4217 currency code) |
| 885 | CVLL,Crypto Variable Logic Label |
| 886 | CVSD,Continuous Variable Slope Delta (modulation) |
| 887 | CVT,Continuously Variable Transmission |
| 888 | CWC,Chemical Weapons Convention |
| 889 | CWRU,Case Western Reserve University |
| 890 | CWS,Canadian Wildlife Service |
| 891 | CXR,Christmas Island (ISO 3166 trigram) |
| 892 | cy,Welsh language (ISO 639-1 code) |
| 893 | CYM,Cayman Islands (ISO 3166 trigram) |
| 894 | cym,Welsh language (ISO 639-2 code) |
| 895 | CYP,Cyprus (ISO 3166 trigram),Cyprus pound (ISO 4217 currency code) |
| 896 | CZE,Czech Republic (ISO 3166 trigram) |
| 897 | CZF,(Christian Zombie Fan) |
| 898 | CZK,Czech koruna (ISO 4217 currency code) |
| 899 | CZMA,(US) Coastal Zone Management Act |
| 900 | d,Deci |
| 901 | D,Deuterium |
| 902 | da,Danish language (ISO 639-1 code),deca |
| 903 | DA,Denmark (FIPS 10-4 country code),Debtors Anonymous,U.S. Department of the Army,District Attorney |
| 904 | DAES,Defence Acquisition Executive Summary,(UK MoD) Directorate of Analysis,Experimentation and Simulation |
| 905 | DAF,Dissolved Air Flotation,a technique used in water treatment |
| 906 | DAFIF,Digital Aeronautical Flight Information File |
| 907 | DAK,Disney's Animal Kingdom |
| 908 | dan,Danish language (ISO 639-2 code) |
| 909 | DAO,Division Ammunition Officer |
| 910 | DAQ,Data acquisition,Delivered Audio Quality |
| 911 | DARE,Drug Abuse Resistance Education |
| 912 | DARO,(U.S.) Defense Airborne Reconnaissance Office |
| 913 | DARPA,U.S. Defense Advanced Research Projects Agency |
| 914 | DART,Disaster Assistance Response Team,Dublin Area Rapid Transit |
| 915 | DAS,Defensive Aids Suite |
| 916 | DASD,(U.S.) Deputy Assistant Secretary of Defense |
| 917 | DASL,Datapoint's Advanced Systems Language |
| 918 | DAU,(U.S.) Defense Acquisition University |
| 919 | DAWN,(U.S.) Drug Abuse Warning Network |
| 920 | dB,Decibel |
| 921 | DB,Deutsche Bahn |
| 922 | Db,Dubnium |
| 923 | DBA,De Bellis Antiquitatis (miniature wargaming rules) |
| 924 | DBBL,(U.S. Army Simulation Center) Dismounted Battlespace Battle Laboratory |
| 925 | DBDO,Desert BDO |
| 926 | DBE,Dame Commander of the Order of the British Empire |
| 927 | DBF,Detection By Fire (weapon launch signature) |
| 928 | DBR,De Bellis Renationis (miniature wargaming rules) |
| 929 | DBRA,Davis-Bacon Related Acts |
| 930 | DBS,Direct Broadcast Services (television) |
| 931 | DC,da capo,Italian Democrazia Cristiana,Digital Compass,Direct Current,District of Columbia (postal symbol),Douglas Aircraft Company,Dublin Core,Duty Cycle |
| 932 | DCA,Defensive Counter Air,Drum Corps Associates,DiChloroAcetate |
| 933 | DCAA,(U.S.) Defense Contract Audit Agency |
| 934 | DCAS,Devon and Cornwall Archery Society |
| 935 | DCC,Dallas Christian College |
| 936 | DCD,[Organ] Donation after Cardiac Death |
| 937 | DCE,Data Communication Equipment |
| 938 | DCFC,Death Cab for Cutie |
| 939 | DCI,Detection,Classification and Identification,Drum Corps International,Duellists' Convocation International,now known simply by the initials |
| 940 | DCL,Disney Cruise Line |
| 941 | DCN,Deacon |
| 942 | DCOM,Disney Channel Original Movie |
| 943 | DCSOPS,Deputy Chief of Staff for Operations and plans |
| 944 | DCW,Digital Chart of the World |
| 945 | DCYSC,Discovery Channel Young Scientist Challenge |
| 946 | DDA,Deputy District Attorney |
| 947 | DDN,U.S. Defense Data Network |
| 948 | DDS,Doctor of Dental Surgery |
| 949 | DDT,Dichloro-Diphenyl-Trichloroethane (insecticide),Dynamic Debugging Tool (computing),DE[edit] |
| 950 | DE,Delaware (postal symbol),Germany (ISO 3166 digram) |
| 951 | de,German language (ISO 639-1 code) |
| 952 | DEA,Drug Enforcement Administration |
| 953 | DEA,Drug Enforcement Agency |
| 954 | DEC,(a/i) Department of Environmental Conservation,Digital Equipment Corporation,Disasters Emergency Committee |
| 955 | DeCA,(U.S.) Defense Commissary Agency |
| 956 | DEFCON,Defence readiness condition |
| 957 | DEFRA,(UK) Department for Environment,Food and Rural Affairs |
| 958 | DELT,Dual Ended Line Test (ing) |
| 959 | DEM,Data Exchange Mechanism,Digital Elevation Model |
| 960 | DEN,Denmark (IOC and FIFA trigram,but not ISO 3166) |
| 961 | DEPSECDEF,(U.S.) Deputy Secretary of Defense |
| 962 | DERA,British Defence Evaluation and Research Agency (1995-2001) |
| 963 | DES,Deep Ecliptic Survey |
| 964 | deu,German language (ISO 639-2 code) |
| 965 | DEU,Germany (ISO 3166 trigram) |
| 966 | DFAS,(U.S.) Defense Finance and Accounting Service |
| 967 | DFCB,Data Format Control Book |
| 968 | DfID,UK Department for International Development |
| 969 | DFM,Discrete Field Model see Superluminal motion |
| 970 | DFM,Dynamic Flowgraph Methodology |
| 971 | DFSP,Dermatofibrosarcoma protuberans |
| 972 | DfT,UK Department for Transport |
| 973 | DFTBA,Don't Forget To Be Awesome,a term commonly used by the Vlogbrothers |
| 974 | DGPS,Differential GPS |
| 975 | DGZ,Desired Ground Zero |
| 976 | DH,dear husband (increasingly prevalent on social mailing lists,blogs,and bulletin boards),Designated hitter |
| 977 | DHA,DocosaHexaenoic Acid |
| 978 | DHHS,(U.S.) Department of Health and Human Services |
| 979 | DHL,Dalsey,Hillblom,and Lynn (courier service) |
| 980 | DHRA,(U.S.) DoD Human Resources Activity |
| 981 | DHS,U.S. Department of Homeland Security |
| 982 | DHSS,UK Department of Health and Social Security |
| 983 | DHTFYSS,U.S. Don't Have Time For You Silly S**** |
| 984 | DHY,Dahomey (ISO 3166 trigram; became BEN for Benin in 1977) |
| 985 | DIA,U.S. Defense Intelligence Agency |
| 986 | DIAC,Department of Immigration and Citizenship (Australia) [1] |
| 987 | DiC,Design Island Centre (computing usually used in a teaching situation) |
| 988 | DICASS,DIrectional Command Activated Sonobuoy System |
| 989 | DIFAR,DIrectional Frequency Analysis and Recording |
| 990 | DIME,Dense Inert Metal Explosive |
| 991 | DINKY,Double Income,No Kids Yet |
| 992 | DIP,Dual In-line Package (electronics) |
| 993 | DIPS,Defense independent pitching statistics |
| 994 | DIR,Defence Industrial Research |
| 995 | DIS,Defence Intelligence Staff,(U.S.) Defense Investigative Service,Distributed Interactive Simulation,Draft International Standard (ISO) |
| 996 | DISA,U.S. Defense Information Systems Agency,Distinguished Individual Service Award |
| 997 | DISCOM,Division Support Command |
| 998 | DISE,Deployable Intelligence Support Element |
| 999 | DISSTAF,DIS Search and Target Acquisition Fidelity experiment |
| 1000 | DITY,Do-It-Yourself |
| 1001 | div,Dhivehi language (ISO 639-2 code) |
| 1002 | DIVAD,Division Air Defence |
| 1003 | DIY,Do It Yourself |
| 1004 | DJ,Disc Jockey,Dinner Jacket,Djibouti (ISO 3166 digram; FIPS 10-4 country code) |
| 1005 | DJD,Degenerative Joint Disease,Dublin Julian Day,Discoveries in the Judaean Desert |
| 1006 | DJF,Djibouti franc (ISO 4217 currency code) |
| 1007 | DJI,Djibouti (ISO 3166 trigram) |
| 1008 | DJS,Director,Joint Staff |
| 1009 | DK,Denmark (ISO 3166 digram) |
| 1010 | DKK,Danish krone (ISO 4217 currency code) |
| 1011 | DL,Dexter's Laboratory |
| 1012 | DLA,U.S. Defense Logistics Agency,Dental Laboratories Association |
| 1013 | DLIC,Detachment Left-In-Contact |
| 1014 | DLIR,Depot-Level Inspection and Repair |
| 1015 | DLPMC,DorsoLateral PreMotor Cortex |
| 1016 | DLR,Deutsches Zentrum für Luft,und Raumfahrt (German,German Aerospace Centre),Docklands Light Railway |
| 1017 | DLRP,Data Link Reference Point |
| 1018 | DLS,Deep Lens Survey |
| 1019 | DLSA,(U.S.) Defense Legal Services Agency |
| 1020 | DLSc,Diploma in Library Science |
| 1021 | 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 |
| 1022 | DLTBGYD,Don't let the bastards grind you down |
| 1023 | DM,Dominica (ISO 3166 digram),Dungeon Master (role-playing games) |
| 1024 | 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) |
| 1025 | DMC,(U.S.) Defense Management Council |
| 1026 | DMCA,Digital Millennium Copyright Act |
| 1027 | DMM,Digital Multimeter |
| 1028 | DMOC,Distributed Mission Operations Centre |
| 1029 | DMPA,(U.S.) Defense Medical Programs Activity |
| 1030 | DMPFC,DorsoMedial PreFrontal Cortex |
| 1031 | DMPK,Drug Metabolism and Pharmacokinetics |
| 1032 | DMRB,Design Manual for Roads and Bridges |
| 1033 | DMS,U.S. Defense Message System |
| 1034 | DMSP,U.S. Defense Meteorological Satellite Program |
| 1035 | DMT,Dimethyltryptamine |
| 1036 | DMU,Diesel Multiple Unit,a method of connecting self-propelled railway vehicles together to form a train under the control of one driver. |
| 1037 | DMV,Department of Motor Vehicles |
| 1038 | DMZ,DeMilitarized Zone |
| 1039 | DN,Deacon |
| 1040 | DNA,U.S. Defense Nuclear Agency,DeoxyriboNucleic Acid,Douglas Noël Adams |
| 1041 | DNAW,Day Night All Weather |
| 1042 | DND,Department of National Defence (Canada),Do Not Disturb |
| 1043 | DNDi,Drugs for Neglected Diseases initiative |
| 1044 | DNDO,U.S. Domestic Nuclear Detection Office |
| 1045 | DNK,Denmark (ISO 3166 trigram) |
| 1046 | DNM,Defence Nuclear Material |
| 1047 | DNR,Do Not Resuscitate |
| 1048 | DNS,Domain Name System |
| 1049 | DO,Dominica (FIPS 10-4 country code),Dominican Republic (ISO 3166 digram),Doctor of Osteopathic Medicine |
| 1050 | DOA,Dead On Arrival,Dead or Alive |
| 1051 | DOB,Date Of Birth |
| 1052 | DOD,U.S. Department of Defense |
| 1053 | DODAF,U.S. Department of Defense Architectural Framework |
| 1054 | DoDD,U.S. Department of Defense Directive |
| 1055 | DoDEA,(U.S.) Department of Defense Education Activity |
| 1056 | DOE,U.S. Department of Energy |
| 1057 | DOHC,Dual-OverHead-Cam engine |
| 1058 | DOI,U.S. Department of the Interior |
| 1059 | DOP,Dominican peso (ISO 4217 currency code) |
| 1060 | DORA,Defence of the Realm Act |
| 1061 | DOS,Density of State |
| 1062 | DOT,Department of Transportation (U.S. federal or state),Damage Over Time (common in World of Warcraft) |
| 1063 | DOTA,short-form for DEFENSE OF THE ANCIENTS a popular online epic game |
| 1064 | DotD,Deal of the Day (marketing gimmick) |
| 1065 | DOTMLPF,Doctrine,Organization,Training,Materiel,Leadership,Personnel,and Facilities (mnemonic) |
| 1066 | DOW,Died of Wounds |
| 1067 | DP,Decision Point,Dynamic Programming |
| 1068 | DP,Division de production (Algerian petroleum company) |
| 1069 | DPA,UK Defence Procurement Agency |
| 1070 | DPCO,Double-Pole Change Over |
| 1071 | DPDT,Double-Pole Double-Throw |
| 1072 | DPI,Dots Per Inch |
| 1073 | DPICM,Dual-Purpose Improved Conventional Munition |
| 1074 | DPKO,UN Department for Peacekeeping Operations |
| 1075 | DPMO,(U.S.) Defense Prisoner of War/Missing Personnel Office |
| 1076 | DPPDB,Digital Point Positioning Database |
| 1077 | DPRE,Displaced Person or Refugee (plural Displaced Persons and Refugees) (originally Displaced Persons,Refugees,Evacuees) |
| 1078 | DPRK,Democratic People's Republic of Korea |
| 1079 | DPST,Double-Pole Single-Throw |
| 1080 | DQ,Dairy Queen,Jarvis Island (FIPS 10-4 country code) |
| 1081 | DR,Dead Reckoning,Dominican Republic (FIPS 10-4 country code),Danmarks Radio (Danish Broadcasting Corporation) |
| 1082 | DRA,Defence Research Agency (UK,1991-1995),Democratic Republic of America |
| 1083 | DRC,Democratic Republic of the Congo |
| 1084 | DRDC,Defence Research & Development Canada |
| 1085 | DREA,Defence Research Establishment Atlantic (obsolete 2002) |
| 1086 | DRES,Defence Research Establishment Suffield (obsolete 2002) |
| 1087 | DRET,Defence Research Establishment Toronto (obsolete 2002) |
| 1088 | DREV,Defence Research Establishment Valcartier (obsolete 2002) |
| 1089 | DRI,Detection,Recognition,Identification,Dietary Reference Intake |
| 1090 | DRIC,(U.S.) Defense Research Information Center |
| 1091 | DRL,Daytime Running Lights,Dorman Roberts Ltd. |
| 1092 | DRMS,(U.S.) Defense Revitalization and Marketing Service |
| 1093 | DRPR,Drawing Practices |
| 1094 | DRT,Document Related Technologies |
| 1095 | Ds,Darmstadtium |
| 1096 | DS,Dear son (increasingly prevalent on social mailing lists,blogs,and bulletin boards),Defence Scientist,Direct Support,Dust Storm (METAR Code) |
| 1097 | DSA,(U.S.) Defense Support Activities,Division Support Area |
| 1098 | DSAA,(U.S.) Defense Security Assistance Agency,Driving Schools Association of the Americas,DECT Standard Authentication Algorithm |
| 1099 | DSAS,Disney Sing Along Songs |
| 1100 | DSB,(U.S.) Defense Science Board |
| 1101 | 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 |
| 1102 | DSCS,U.S. Defense Satellite Communications System |
| 1103 | DSCSOC,DSCS Operations Center |
| 1104 | DSD,Defence Studies Department (King's College,London) |
| 1105 | DSE,Dry Sheep Equivalent |
| 1106 | DSG,Direct-Shift Gearbox |
| 1107 | DSID,Dismounted Soldier Identification System |
| 1108 | DSL,Digital Subscriber Line |
| 1109 | DSLR,Digital single-lens reflex (camera) |
| 1110 | DSM,Diagnostic and Statistical Manual of Mental Disorders |
| 1111 | DSN,Deep Space Network |
| 1112 | DSP,Defense Standardization Program,Defense Support Program, |
| 1113 | DSPL,Design Specialists and Plans Language |
| 1114 | DSR,Deformed Special Relativity |
| 1115 | DSRV,Deaf Sports Recreation Victoria,Deep Submergence Rescue Vehicle |
| 1116 | DSS,Digitized Sky Survey,Discarding-Sabot Shell (ammunition) |
| 1117 | DST,Daylight Saving Time |
| 1118 | DSTL,British Defence Science and Technology Laboratory |
| 1119 | DSWA,(U.S.) Defense Special Weapons Agency |
| 1120 | DTA,Dental Technologists Association |
| 1121 | DTD,Digital Terrain Data |
| 1122 | DTE,Data Terminal Equipment,Down To Earth |
| 1123 | DTG,Date-Time Group |
| 1124 | DTH,Direct To Home (television) |
| 1125 | DTI,UK Department of Trade and Industry |
| 1126 | DTIC,(U.S.) Defense Technical Information Center |
| 1127 | DTL,Diode-Transistor Logic (electronics) |
| 1128 | DTLOMS,Doctrine,Training,Leader development,Organization,Materiel,and Soldier (mnemonic) |
| 1129 | DTMF,Dual-tone multi-frequency signaling |
| 1130 | DTO,Disruptive Technology Office (was ARDA) |
| 1131 | DTOMLS,Doctrine,Training,Organization,Materiel,Leader and Soldier development (mnemonic) |
| 1132 | DTR,Determine The Relationship |
| 1133 | DTSA,(U.S.) Defense Technology Security Administration |
| 1134 | DU,Depleted Uranium,Dust (METAR Code) |
| 1135 | 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 |
| 1136 | DUMBO,Down Under the Manhattan Bridge Overpass (Brooklyn neighborhood) |
| 1137 | DUSD,(U.S.) Deputy Under-Secretary of Defense |
| 1138 | dv,Dhivehi language (ISO 639-1 code) |
| 1139 | DVLC,UK Driver and Vehicle Licencing Centre |
| 1140 | DVM,Doctor of Veterinary Medicine |
| 1141 | DVO,Direct View Optics |
| 1142 | DVOM,Digital Volt-Ohm Meter |
| 1143 | DVP,various meanings (disambiguation page) |
| 1144 | DW,Drum Workshop |
| 1145 | DWI,Dance With Intensity,Danish West Indies,Diffusion-weighted imaging,Direct water injection,Disaster Welfare Inquiry,Drinking Water Inspectorate,Driving While Intoxicated/Impaired |
| 1146 | DWIM,Do What I Mean |
| 1147 | DWM,Doctor Who Magazine |
| 1148 | DWTS,Dancing with the Stars |
| 1149 | DWW,Down with Webster |
| 1150 | DX,Dexterity (role-playing games),DeXtrorphan,Distant (radio),D-Generation X (professional wrestling stable) |
| 1151 | DXA,Dual-energy X-ray Absorptiometry |
| 1152 | DXM,DeXtroMethorphan |
| 1153 | DY,Dahomey (ISO 3166 digram; obsolete since 1977) |
| 1154 | Dy,Dysprosium |
| 1155 | DZ,Algeria (ISO 3166 digram),Drizzle (METAR Code),Drop Zone |
| 1156 | dz,Dzongkha language (ISO 639-1 code) |
| 1157 | DZA,Algeria (ISO 3166 trigram) |
| 1158 | DZD,Algerian dinar (ISO 4217 currency code) |
| 1159 | dzo,Dzongkha language (ISO 639-2 code) |
| 1160 | E,East |
| 1161 | EA,Electronic Attack,Emotions Anonymous,Engagement Area,Electronic Arts,Enrolled Agent,Environmental Assessment,Enterprise Architect,Exaampere |
| 1162 | EABU,Explain Acronyms Before Use |
| 1163 | EAC,Echelons Above Corps |
| 1164 | EAPC,Euro-Atlantic Partnership Council |
| 1165 | EAST,Experimental Advanced Superconducting Tokamak |
| 1166 | EBD,Electronic Brake Distribution |
| 1167 | EBE,Extraterrestrial Biological Entity |
| 1168 | EBO,Effects Based Operations,Encyclopædia Britannica Online,European Board of Ophthalmology |
| 1169 | EBSA,Employee Benefits Security Administration |
| 1170 | EBW,Electron Beam Welding |
| 1171 | EBW,Exploding BridgeWire |
| 1172 | ECASS,European Centre for Analysis in the Social Sciences [1] |
| 1173 | ECB,England (and Wales) Cricket Board,European Central Bank |
| 1174 | ECBR,European Coalition for Biomedical Research |
| 1175 | ECCM,Electronic Counter-Counter-Measures |
| 1176 | ECFS,Electronic Case Filing System |
| 1177 | ECG,Electrocardiogram |
| 1178 | 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 |
| 1179 | ECHR,European Convention on Human Rights |
| 1180 | ECJ,European Court of Justice |
| 1181 | ECL,Emitter Coupled Logic (electronics) |
| 1182 | ECM,Electronic Counter-Measures,Enterprise Content Management |
| 1183 | ECommHR,European Commission on Human Rights |
| 1184 | ECS,Emergency Contact System,Enhanced Chip Set (computing),EOSDIS Core System,Extended Chip Set (computing) |
| 1185 | ECSC,European Coal and Steel Community (distant ancestor of the EU) |
| 1186 | ECT,ElectroConvulsive Therapy |
| 1187 | ECtHR,European Court of Human Rights |
| 1188 | ECU,Ecuador (ISO 3166 trigram),European Currency Unit (ancestor of the euro) |
| 1189 | ECW,Eastern Championship Wrestling/Extreme Championship Wrestling,ED[edit] |
| 1190 | EDA,European Defence Agency |
| 1191 | EDAC,Error Detection And Correction |
| 1192 | EDCS,Environmental Data Coding Specification |
| 1193 | 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) |
| 1194 | EDGAR,Electronic Data Gathering,Analysis,and Retrieval (U.S. Securities and Exchange Commission filings database) |
| 1195 | EDH,Eastman Dental Hospital |
| 1196 | EDS,Electronic Data Systems,Electronic Differential System |
| 1197 | EDSA,Epifanio de los Santos Avenue (a major thoroughfare in Manila with great significance to post-1980 Philippines history) |
| 1198 | EDT,Eastern Daylight Saving Time (UTC−4 hours) |
| 1199 | EDTA,Electric Drive Transportation Association,EthyleneDiamineTetraAcetic acid,EE[edit] |
| 1200 | EE,Estonia (ISO 3166 digram; from the country's native name of Eesti),Electrical engineering,Electrical Engineer,E&E,Escape and Evasion (training) |
| 1201 | ee,Ewe language (ISO 639-1 code) |
| 1202 | EEC,European Economic Community (predecessor of the EU) |
| 1203 | EEG,ElectroEncephaloGram |
| 1204 | EEK,Estonian kroon (ISO 4217 currency code) |
| 1205 | EENT,End Evening Nautical Twilight |
| 1206 | EEO,Equal Employment Opportunity |
| 1207 | EEOC,(U.S.) Equal Employment Opportunity Commission |
| 1208 | EEZ,Economic Exclusion Zone or Exclusive Economic Zone |
| 1209 | EF,Electro-focus (Canon lens mount),Entry Foyer,Exafarad |
| 1210 | EFF,Electronic Frontier Foundation |
| 1211 | EFL,English as a Foreign Language |
| 1212 | EFM,Enterprise Feedback Management |
| 1213 | EFOA,European Fuel Oxygenates Association |
| 1214 | EFSA,European Food Safety Authority |
| 1215 | EFT,Electronic Fund Transfer |
| 1216 | EFTA,European Free Trade Area,European Free Trade Association |
| 1217 | EFV,Expeditionary Fighting Vehicle |
| 1218 | EG,Egypt (ISO 3166 digram; FIPS 10-4 country code) |
| 1219 | EGBUS,External Genitalia,Bartholin's glands,Urethra & Skene's glands |
| 1220 | EGCG,EpiGalloCatechin-3-Gallate |
| 1221 | EGIS,Erieye Ground Interface Segment |
| 1222 | EGP,Egyptian pound (ISO 4217 currency code) |
| 1223 | EGRET,Energetic Gamma-Ray Experiment Telescope |
| 1224 | EGY,Egypt (ISO 3166 trigram) |
| 1225 | EH,Exahenry,Western Sahara (ISO 3166 digram) |
| 1226 | EHA,Education for All Handicapped Children Act (U.S. federal legislation; since superseded by the Individuals with Disabilities Education Act),Emotional Health Anonymous |
| 1227 | EHF,Extremely High Frequency |
| 1228 | EHR,Equipment History Record |
| 1229 | Ei,Exbi |
| 1230 | EI,Ireland (FIPS 10-4 country code; from Éire) |
| 1231 | EIA,Environmental Impact Assessment |
| 1232 | EIAH,Encyclopedia of Iranian Architectural History |
| 1233 | EIAH,Environnements Informatiques pour l'Apprentissage Humain |
| 1234 | EIC,East India Company |
| 1235 | EICS,East India Company's Service |
| 1236 | eID,electronic ID |
| 1237 | EIRP,Effective Isotropic Radiated Power |
| 1238 | EIS,Environmental Impact Statement |
| 1239 | EJ,Exajoule |
| 1240 | EK,Equatorial Guinea (FIPS 10-4 country code),Exakelvin |
| 1241 | EKG,Electrocardiogram (from German Elektrokardiogramm) |
| 1242 | EKMS,Electronic Key Management System |
| 1243 | EL,Exalitre |
| 1244 | el,Greek language (ISO 639-1 code) |
| 1245 | ELF-(a/i) Earth Liberation Front,Endangered Language Fund,Eritrean Liberation Front,Executable and Linkable Format,Extremely Low Frequency |
| 1246 | ELINT,Electronic Intelligence |
| 1247 | ELL,English Language Learner |
| 1248 | ell,Greek language (ISO 639-2 code) |
| 1249 | ELM,Edge-Localised Mode (plasma physics) |
| 1250 | ELO,Electric Light Orchestra |
| 1251 | ELP,Emerson,Lake & Palmer,European Left Party |
| 1252 | ELSS,Emergency Life Support Stores |
| 1253 | ELT,Emergency Locator Transmitter |
| 1254 | EM,ElectroMagnetism/ElectroMagnetic |
| 1255 | Em,Exametre |
| 1256 | EMA,European Medicines Agency |
| 1257 | EMC,Electric Membership Corporation,Electromagnetic Compatibility,Electro-Motive Corporation,European Muon Collaboration,Evergreen Marine Corporation |
| 1258 | EMCON,(Electromagnetic) Emissions Control |
| 1259 | EMD,General Motors Electro-Motive Division,Engineering and Manufacturing Development,European Missile Defence |
| 1260 | EMDG,Euro-Missile Dynamics Group |
| 1261 | EMDR,Eye Movement Desensitisation and Reprocessing |
| 1262 | EMF,Electromotive force,Epsom Mad Funkers (1990s-2000s indie dance band) |
| 1263 | EMG,ElectroMyoGraph |
| 1264 | EMO,Emergency Measures Organisation, Emotional |
| 1265 | EMP,ElectroMagnetic Pulse |
| 1266 | EMS,Emergency Medical Services |
| 1267 | EMT,Emergency Medical Technician |
| 1268 | EMU,Electric Multiple Unit,a method of connecting self-propelled railway vehicles together to form a train under the control of one driver. |
| 1269 | EN,Corps of Engineers,Estonia (FIPS 10-4 country code),Exanewton |
| 1270 | en,English language (ISO 639-1 code) |
| 1271 | ENCODE,Encyclopedia of DNA Elements (human genome data project) |
| 1272 | ENE,East North-East |
| 1273 | ENG,England (FIFA trigram; not eligible for an ISO 3166 or IOC trigram) |
| 1274 | eng,English language (ISO 639-2 code) |
| 1275 | ENT,Ear,Nose and Throat |
| 1276 | ENTEC,Euro NATO Training Engineer Centre |
| 1277 | ENVL,Envelope |
| 1278 | ENY,Enemy |
| 1279 | EO,Electro-Optics,Engagement Operations |
| 1280 | eo,Esperanto language (ISO 639-1 code) |
| 1281 | EOD,Explosive Ordnance Disposal |
| 1282 | EOG,ElectroOculoGraphy |
| 1283 | EOM,End of Message |
| 1284 | 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 |
| 1285 | EOSAT,Earth Observation Satellite |
| 1286 | EOSDIS,(a/i) Earth Observation Satellite Data and Information System |
| 1287 | EOTS,Electro-Optical Tactical Sensor,(a/i) Eye Of The Storm (World of Warcraft) |
| 1288 | EP,European Parliament |
| 1289 | EP,Extended play |
| 1290 | EPA,EicosaPentaenoic Acid,Environmental Protection Agency |
| 1291 | EPCOT,Experimental Prototype Community Of Tomorrow |
| 1292 | EPCR,Endothelial protein C receptor,European Professional Club Rugby |
| 1293 | EPGS,EOS Polar Ground Sites |
| 1294 | EPIRB,(a/i) Emergency Position Indicating Radio Beacon |
| 1295 | EPL,English Premier League |
| 1296 | epo,Esperanto language (ISO 639-2 code) |
| 1297 | EPOS,Electronic Point Of Sale |
| 1298 | EPPA,Employee Polygraph Protection Act |
| 1299 | EPR,European Pressurised [Nuclear] Reactor |
| 1300 | EPW,Earth Penetrator Weapon/Warhead,Economic and Political Weekly (Indian publication),Enemy Prisoner of War,EQ[edit] |
| 1301 | EQ,Emotional Quotient |
| 1302 | EQG,Equatorial Guinea (FIFA trigram,but not IOC or ISO 3166) |
| 1303 | ER,Emergency Room,Eritrea (ISO 3166 digram; FIPS 10-4 country code) |
| 1304 | Er,Erbium |
| 1305 | ERA,Earned run average,Engineering Research Associates,Equal Rights Amendment,English Racing Automobiles,European Railway Agency |
| 1306 | ERCIM,(a/i) European Research Consortium for Informatics and Mathematics |
| 1307 | ERI,Eritrea (ISO 3166 trigram) |
| 1308 | ERLAWS,Eastern Ruapehu Lahar Alarm and Warning System |
| 1309 | ERN,Eritrean nakfa (ISO 4217 currency code) |
| 1310 | EROS,Earth Resources Observation System |
| 1311 | ERP,Engineer Regulating Point |
| 1312 | ERR,Eesti Rahvusringhääling |
| 1313 | ERS,Earth Resources Survey |
| 1314 | ERTS,Earth Resources Technology Satellite (became Landsat) |
| 1315 | ERV,Endogenous RetroVirus |
| 1316 | Es,Einsteinium,Exasecond |
| 1317 | ES,El Salvador (FIPS 10-4 country code),Electronic warfare Support,Exasiemens,Spain (ISO 3166 digram; from the country's native name of España) |
| 1318 | es,Spanish language (ISO 639-1 code) |
| 1319 | ESA,Electro-Spark Alloying,Endangered Species Act,European Space Agency |
| 1320 | ESC,Embryonic Stem Cell,Electronic Stability Control |
| 1321 | ESD,ElectroStatic Discharge |
| 1322 | ESDP,European Security and Defence Policy |
| 1323 | ESE,East South-East |
| 1324 | ESH,Western Sahara (ISO 3166 trigram) |
| 1325 | ESL,English as a Second Language |
| 1326 | ESM,Electronic warfare Support Measures |
| 1327 | ESO,European Southern Observatory |
| 1328 | ESOL,English for Speakers of Other Languages |
| 1329 | ESP,Electronic Stability Program,Extra-sensory perception,Spain (ISO 3166 trigram) |
| 1330 | ESPGHAN,European Society for Paediatric Gastroenterology,Hepatology and Nutrition |
| 1331 | ESPN,Entertainment and Sports Programming Network |
| 1332 | EST,Eastern Standard Time (UTC−5 hours),Estonia (ISO 3166 trigram) |
| 1333 | est,Estonian language (ISO 639-2 code) |
| 1334 | ESU,Emergency Services Unit |
| 1335 | ESV,Engineer Support Vehicle |
| 1336 | et,Estonian language (ISO 639-1 code) |
| 1337 | ET,Ethiopia (ISO 3166 digram; FIPS 10-4 country code) |
| 1338 | ETB,Ethiopian Birr (ISO 4217 currency code) |
| 1339 | ETF,Emergency Task Force (a special police unit,also jocularly said to stand for Extra-Thick Fuzz) |
| 1340 | ETH,Ethiopia (ISO 3166 trigram) |
| 1341 | ETI,Extra-Terrestrial Intelligence |
| 1342 | ETLA,Extended TLA |
| 1343 | ETM,Electronic Technical Manual,Enhanced Thematic Mapper |
| 1344 | ETT,Embedded Training Team |
| 1345 | eu,Basque language (ISO 639-1 code) |
| 1346 | EU,Europa Island (FIPS 10-4 country code),European Union |
| 1347 | Eu,Europium |
| 1348 | EUCOM,(U.S.) European Command |
| 1349 | EUR,euro (ISO 4217 currency code) |
| 1350 | eus,Basque language (ISO 639-2 code) |
| 1351 | EUUSA,European Union and United States of America |
| 1352 | EV,Exavolt |
| 1353 | EVA,Earned Value Analysis,Economic value added,Ethylene-Vinyl Acetate,Extra-Vehicular Activity |
| 1354 | EVIL,Electronic viewfinder (with) interchangeable lens (a type of digital camera) |
| 1355 | EW,Electronic Warfare,Exawatt |
| 1356 | ewe,Ewe language (ISO 639-2 code) |
| 1357 | EWTN,Eternal Word Television Network |
| 1358 | Exatesla,Extra Terrestrial |
| 1359 | EXREP,Expeditious Repair (SM&R code) |
| 1360 | EZ,Czech Republic (FIPS 10-4 country code),Extraction Zone |
| 1361 | F,Farad,Fluorine |
| 1362 | f,Femto |
| 1363 | fA,Femtoampere |
| 1364 | FA,Field Artillery,Financial Aid,Football Association (England) |
| 1365 | FA,Food Addicts in Recovery Anonymous |
| 1366 | fa,Persian language (ISO 639-1 code) |
| 1367 | FAAD,Forward Area Air Defence |
| 1368 | FAADEZ,Forward Area Air Defence Engagement Zone |
| 1369 | FAAFP,Fellow of the American Academy of Family Physicians |
| 1370 | FAAN,Fellow of the American Academy of Neurology |
| 1371 | FAAN,Fellow of the American Academy of Nursing |
| 1372 | FAAQ,(a/i) Frequently Asked and Anticipated Questions (cf. FAQ) |
| 1373 | FAASV,Field Artillery Ammunition Supply Vehicle |
| 1374 | FAB,Feline Advisory Bureau (UK feline charity) |
| 1375 | FAC,Forward Air Controller,Front of Allies for Change,Frontal Affinity Chromatography,Full Aperture Calibrator |
| 1376 | FACA,(US) Federal Advisory Committee Act |
| 1377 | FACH,Fuerza Aérea de Chile |
| 1378 | FACN,Fellow of the American College of Nutrition |
| 1379 | FACP,Fellow of the American College of Physicians |
| 1380 | FACS,Fellow of the American College of Surgeons,Formal Aspects of Computing Science,Fluorescent-activated cell sorting |
| 1381 | FACTS,Flexible Alternating Current Transmission System |
| 1382 | FAD,Flavin Adenine Dinucleotide,Fuck A Duck,Funding Authorization Document |
| 1383 | FAH,Federation of American Hospitals,Fine Arts and Humanities,Foreign Affairs Handbook |
| 1384 | FAM,Foreign Affairs Manual |
| 1385 | fao,Faroese language (ISO 639-2 code) |
| 1386 | FAO,Food and Agriculture Organization |
| 1387 | FAPA,Fellow of the American Psychological Association |
| 1388 | FAPHA,Fellow of the American Public Health Association |
| 1389 | FARP,Forward Arming and Refuelling Point / Forward Area Rearm/refuel Point |
| 1390 | FAS,Federation of American Scientists,Fetal Alcohol Syndrome |
| 1391 | fas,Persian language (ISO 639-2 code) |
| 1392 | FASCAM,Family of Scatterable Mines[1] |
| 1393 | FASD,Fetal Alcohol Spectrum Disorder |
| 1394 | FASEB,(a/i) Federation of American Societies for Experimental Biology |
| 1395 | FAT,Field Artillery Tractor |
| 1396 | FAVS,Future Armoured Vehicle System |
| 1397 | FAW,Football Association of Wales |
| 1398 | FB,Facebook,An on-line social network |
| 1399 | FBCS,Fellow of the British Computer Society |
| 1400 | FBIDST,Fellow of the British Institute of Dental and Surgical Technologists |
| 1401 | FBIS,Foreign Broadcast Information Service |
| 1402 | FBM,Board foot |
| 1403 | FBR,Fast Breeder Reactor,Foundation for Biomedical Research,Friedman,Billings,Ramsey (now known as Arlington Asset Investment) |
| 1404 | FBS-Federal Bureau of Statistics (Pakistan),Fetal bovine serum,Football Bowl Subdivision (U.S. college football),Fukuoka Broadcasting Corporation,FC[edit] |
| 1405 | fC,Femtocoulomb |
| 1406 | FC,Fire Control,Football Club,Funnel Cloud (METAR Code) |
| 1407 | FCC,U.S. Federal Communications Commission |
| 1408 | FCE,First Certificate in English |
| 1409 | FCF,Financial Free Cash Flow |
| 1410 | FCLA,Fraud Claims Law Associate |
| 1411 | FCM,Federation of Canadian Municipalities,Fogarty's Cove Music |
| 1412 | FCO,UK Foreign and Commonwealth Office |
| 1413 | FCW,Florida Championship Wrestling |
| 1414 | FD,Falun Dafa |
| 1415 | FDA,Food and Drug Administration (U.S.) |
| 1416 | FDBK,(I) Feedback |
| 1417 | FDC,Federal Detention Center (U.S.),Fire Direction Centre |
| 1418 | FDR,Flight Data Recorder,Franklin Delano Roosevelt |
| 1419 | FE,Fully Exposed (armoured vehicle target,as opposed to Hull-Down) |
| 1420 | Fe,Iron (Latin Ferrum) |
| 1421 | FEAR,First Encounter Assault Recon,False Evidence Appears Real |
| 1422 | FEAST,(a/i) Forum for European-Australian Science and Technology Cooperation |
| 1423 | FEATS,Festival of European Anglophone Theatrical Societies link title |
| 1424 | FEBA,Forward Edge of the Battle Area |
| 1425 | FED,(a/i) Field emission display |
| 1426 | FEDEP,Federation Development Process (Simulation) |
| 1427 | FEF,Frontal Eye Field (neurophysiology) |
| 1428 | FEMA-(a/i) Farm Equipment Manufacturers Association,(a/i) U.S. Federal Emergency Management Agency,Fire Equipment Manufacturers' Association |
| 1429 | FENS,(a/i) Federation of European Neuroscience Societies |
| 1430 | FEP,Firepower Enhancement Program,Fleet satellite (FLTSAT) Extremely high frequency (EHF) Package |
| 1431 | FES,Flywheel Energy Storage |
| 1432 | FEST,Frankfurt English Speaking Theatre link title |
| 1433 | FET,Field-effect transistor |
| 1434 | FEZ,(a/i) Fighter Engagement Zone |
| 1435 | fF,Femtofarad |
| 1436 | FF,Final Fantasy |
| 1437 | ff,Fula language (ISO 639-1 code) |
| 1438 | FFA,Football Federation Australia,Pacific Islands Forum Fisheries Agency,Free-Fire Area,Fusiform Face Area,Future Farmers of America (today the National FFA Organization) |
| 1439 | FFB,Frum From Birth (referring to an observant Jew born into a religiously observant family) |
| 1440 | FFC,Free For Chat |
| 1441 | FFE,Fukuoka Futures Exchange |
| 1442 | FFG,Guided Missile Frigate (hull classification symbol) |
| 1443 | FFOV,Forward Field Of View |
| 1444 | FFS,For Fuck's Sake |
| 1445 | FFT,Final Fantasy Tactics,FG[edit] |
| 1446 | FG,Falun Gong |
| 1447 | fg,Femtogram |
| 1448 | FG,Fog (METAR Code),French Guiana (FIPS 10-4 territory code) |
| 1449 | FGR,Flickr Group Roulette |
| 1450 | fH,Femtohenry |
| 1451 | FHFIF,Foster's Home for Imaginary Friends |
| 1452 | FHI,Family Health International,Fuji Heavy Industries,Ltd. |
| 1453 | FI,Finland (ISO 3166 digram; FIPS 10-4 country code) |
| 1454 | fi,Finnish language (ISO 639-1 code) |
| 1455 | FIB,Fucking Illinois Bastard (Wisconsin slang,variants exist) |
| 1456 | FIBUA,Fighting In Built-Up Areas |
| 1457 | FIC,Fellowship for Intentional Community |
| 1458 | FID,Foreign Internal Defence |
| 1459 | FIE,Fly-In Echelon |
| 1460 | FIFO,First In,First Out |
| 1461 | FIFRA,Federal Insecticide,Fungicide,and Rodenticide Act |
| 1462 | FIGJAM,Fuck I'm Good,Just Ask Me |
| 1463 | fij,Fijian language (ISO 639-2 code) |
| 1464 | FIMPT,Fellow of the Institute of Maxillofacial Prosthetists and Technologists |
| 1465 | FIN,Finland (ISO 3166 trigram) |
| 1466 | fin,Finnish language (ISO 639-2 code) |
| 1467 | FIRES,Fever Induced Refractory Epilepsy Syndrome or Febrile Infection-Related Epilepsy Syndrome |
| 1468 | FISH,Fluorescence In-Situ Hybridisation |
| 1469 | FiST,Fire Support Team |
| 1470 | FITS,Flexible Image Transport System |
| 1471 | FIU,Florida International University |
| 1472 | fJ,Femtojoule |
| 1473 | FJ,Fiji (ISO 3166 digram; FIPS 10-4 country code) |
| 1474 | fj,Fijian language (ISO 639-1 code) |
| 1475 | FJD,Fiji dollar (ISO 4217 currency code) |
| 1476 | FJI,Fiji (ISO 3166 trigram) |
| 1477 | FJN,Financial Job Network |
| 1478 | FK,Falkland Islands (ISO 3166 digram; FIPS 10-4 territory code) |
| 1479 | fK,Femtokelvin |
| 1480 | FKP,Falkland Islands pound (ISO 4217 currency code) |
| 1481 | FKSM,Fort Knox Supplemental Manual |
| 1482 | FKT,Fastest Known Time |
| 1483 | fL,Femtolitre |
| 1484 | FL,Florida (postal symbol) |
| 1485 | FLA,Florida,Front Line Assembly,Future Large Aircraft |
| 1486 | FLAB,Four-letter abbreviation |
| 1487 | FLAC,(a/i) Free Legal Advice Centres |
| 1488 | FLAC,(a/i) Free Lossless Audio Codec |
| 1489 | FLB,Forward Logistics Base |
| 1490 | FLET,(a/i) Forward Line of Enemy Troops |
| 1491 | FLG,Falun Gong |
| 1492 | FLIP,Flight Information Publication |
| 1493 | FLIR,Forward Looking InfraRed (sensor) |
| 1494 | FLK,Falkland Islands (ISO 3166 trigram) |
| 1495 | FLOT,(a/i) Forward Line of Own Troops |
| 1496 | FLQ,Free Legal Questions |
| 1497 | FLSA,Fair Labor Standards Act |
| 1498 | FLTSAT,Fleet Satellite |
| 1499 | FLTSATCOM,Fleet Satellite Communication System |
| 1500 | FLUBOS,Fat,Lazy,Useless,Bag Of Shit |
| 1501 | FM,Factory Mutual http://fmglobal.com |
| 1502 | 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) |
| 1503 | fm,Femtometre |
| 1504 | Fm,Fermium |
| 1505 | FMC,Federal Magistrates' Court (an Australian federal court,formerly FMS),Food Machinery Corporation (original name of the company now known as FMC Corporation) |
| 1506 | FMCA,Federal Magistrates' Court of Australia (used for citing decisions of the FMC other than family law decisions) |
| 1507 | FMCAfam,Federal Magistrates' Court of Australia: family (used for citing family law decisions of the FMC) |
| 1508 | FMCG,(Fast Moving Consumer Goods) |
| 1509 | FME,Formal Methods Europe |
| 1510 | FMECA,Failure Modes and Effect Criticality Analysis |
| 1511 | FMJD,Fédération Mondiale du Jeu de Dames[2] |
| 1512 | FMLA,Family Medical Leave Act |
| 1513 | fMRI,Functional Magnetic Resonance Imaging |
| 1514 | FMSF,False Memory Syndrome Foundation |
| 1515 | FMTV,Family of Medium Tactical Vehicles |
| 1516 | fN,Femtonewton |
| 1517 | FNA,Functional Needs Analysis |
| 1518 | fo,Faroese language (ISO 639-1 code) |
| 1519 | FOAD,Fuck Off And Die |
| 1520 | FOAF,Friend Of A friend |
| 1521 | FOB,Forward Operating Base |
| 1522 | FoB,Free On Board (shipping) |
| 1523 | FOC,Full Operational Capability,First of Class |
| 1524 | FoE,Friends of the Earth |
| 1525 | FOGC,Federal Oil and Gas Council |
| 1526 | FOH,Front Of House |
| 1527 | FOIA,Freedom of Information Act |
| 1528 | FOM,Federation Object Model |
| 1529 | FONSI,Finding of No Significant Impact |
| 1530 | FOO,Forward Observation Officer |
| 1531 | FOOP,Friends Of Organ Pipes (Volunteer group) |
| 1532 | FOR,Field Of Regard,Frame Of Reference |
| 1533 | FoS,Family of Systems |
| 1534 | FOS,Florida Ornithological Society,Full Operational Status |
| 1535 | FOSE,Fallout 3 Script Extender |
| 1536 | FOSE,Federal Office Systems Expo |
| 1537 | FOT,Free on truck |
| 1538 | FOTA,Fellow of the Orthodontic Technicians Association |
| 1539 | FOTC,Flight of the Conchords |
| 1540 | FOUO,For Official Use Only |
| 1541 | FP,French Polynesia (FIPS 10-4 territory code) |
| 1542 | FPS,Fire Prevention System |
| 1543 | FQ,Baker Island (FIPS 10-4 territory code),French Southern and Antarctic Territories (ISO 3166 digram; obsolete 1979) |
| 1544 | FR,France (FIPS 10-4 country code; ISO 3166 digram) |
| 1545 | Fr,Francium |
| 1546 | fr,French language (ISO 639-1 code) |
| 1547 | FRA,Federal Railroad Administration,France (ISO 3166 trigram) |
| 1548 | fra,French language (ISO 639-2 code) |
| 1549 | FRAND,Fair,reasonable,and non-discriminatory (concept in standards-setting and intellectual property law) |
| 1550 | FRCP,Federal Rules of Civil Procedure,Fellow of the Royal College of Physicians |
| 1551 | FRICBM,Full Range ICBM |
| 1552 | FRO,Faroe Islands (ISO 3166 trigram) |
| 1553 | frr,North Frisian language (ISO 639-2 code) |
| 1554 | FRS,Fellow of the Royal Society,U.S. Federal Reserve System |
| 1555 | FRSA,Fellow of the Royal Society of Art |
| 1556 | FRY,Federal Republic of Yugoslavia |
| 1557 | fry,West Frisian language (ISO 639-2 code) |
| 1558 | fs,Femtosecond |
| 1559 | fS,Femtosiemens |
| 1560 | FSA,Fire Support Area,UK Food Standards Agency,Functional Solution Analysis |
| 1561 | FSC,Federal Supply Classification,Forest Stewardship Council (ecological pressure group |
| 1562 | FSCL,Fire Support Co-ordination Line |
| 1563 | FSE,Fire Support Element |
| 1564 | FSF,Free Software Foundation |
| 1565 | FSH,Follicle Stimulating Hormone |
| 1566 | FSI,Fuel Stratified Injection |
| 1567 | FSM,Federated States of Micronesia (ISO 3166 trigram),Flying Spaghetti Monster (satirical religion) |
| 1568 | FSO,Fire Support Officer,Flotilla Staff Officer,Foreign Service Officer |
| 1569 | FSS,Fire Support Station |
| 1570 | FSSP,Families of Structurally Similar Proteins |
| 1571 | FST,Finance Support Team,Finlands Svenska Television (Finland's Swedish-language television),Future Soviet Tank (Cold War era) |
| 1572 | FSTC,Foreign Science Technology Center (now NGIC) |
| 1573 | fT,Femtotesla |
| 1574 | FTC,Federal Trade Commission |
| 1575 | FTE,Full Time Equivalent |
| 1576 | FTL,Faster Than Light |
| 1577 | FTS,Flight Termination System used during some rocket launches |
| 1578 | FTS,Fuck That Shit |
| 1579 | FTW,For The Win (a commonly used phrase used online to indicate success) F@#K The World,Forever Together Where ever (gang slogan) |
| 1580 | FU,Smoke (METAR Code) |
| 1581 | FUBAR,Fucked/Fouled Up Beyond All Recognition/Repair |
| 1582 | FUCK,For,Unlawful,Carnal,Knowledge (Van Halen album title) |
| 1583 | FUD,Fear,Uncertainty & Doubt (marketing strategy) |
| 1584 | ful,Fula language (ISO 639-2 code) |
| 1585 | fV,Femtovolt |
| 1586 | fW,Femtowatt |
| 1587 | FW,Forward |
| 1588 | FWC,Football World Cup |
| 1589 | FWF,Fixed Word Format |
| 1590 | FWI,French West Indies |
| 1591 | FWIW,For What It's Worth |
| 1592 | FWS,U.S. Fish and Wildlife Service |
| 1593 | FWT,Fresh Water Tank |
| 1594 | FX,Firefox,Fox Extended,Metropolitan France (ISO 3166 digram; obsolete 1997),Special effect |
| 1595 | FXX,Metropolitan France (ISO 3166 trigram; obsolete 1997) |
| 1596 | FY,Fiscal Year,Former Yugoslav Republic of Macedonia (NATO country code) |
| 1597 | fy,West Frisian language (ISO 639-1 code) |
| 1598 | FYA,For Your Agenda |
| 1599 | FYDP,Five-Year Defense Plan (U.S.) |
| 1600 | FYI,For Your Information |
| 1601 | FYROM,Former Yugoslav Republic of Macedonia |
| 1602 | FZDZ,Freezing Drizzle (METAR Code) |
| 1603 | FZFG,Freezing Fog (METAR Code) |
| 1604 | FZRA,Freezing Rain (METAR Code) |
| 1605 | G,Gauss,General Audiences (movie rating) |
| 1606 | g,Gram |
| 1607 | G1,Assistant Chief-of-Staff,Personnel |
| 1608 | G10,Group of 10 (G7 + Belgium,Netherlands,Sweden,Switzerland; numbering 11 in fact) |
| 1609 | 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) |
| 1610 | G2,Assistant Chief-of-Staff,Intelligence |
| 1611 | 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) |
| 1612 | 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) |
| 1613 | G3,Heckler & Koch G3 |
| 1614 | G4,Generation Four PowerPC microprocessor,Assistant Chief-of-Staff,Logistics |
| 1615 | G5,Generation Five PowerPC microprocessor,Assistant Chief-of-Staff,Public Affairs |
| 1616 | G6,Assistant Chief-of-Staff,Information Technology,Group of 6 (France,Germany,United States,Japan,United Kingdom,Italy) (1975) |
| 1617 | G7,Assistant Chief-of-Staff,Training,Group of 7 (G6 + Canada) (1976) |
| 1618 | G77,Group of 77 (issued from the United Nations Conference on Commerce and Development,1964; currently numbers 133) |
| 1619 | G8,Assistant Chief-of-Staff,Finance,Group of 8 (G7 + Russia) (1998) |
| 1620 | GA,Gabon (ISO 3166 digram),The Gambia (FIPS 10-4 country code),Gamblers Anonymous,Georgia (postal symbol),Gigaampere,Goa (Indian state code) |
| 1621 | Ga,Gallium,Gigaannum |
| 1622 | GAAR,General Anti-Avoidance Rule (tax evasion) |
| 1623 | GAB,Gabon (ISO 3166 trigram) |
| 1624 | GABA,Gamma-AminoButyric Acid |
| 1625 | GAD,Generalized Anxiety Disorder |
| 1626 | GAF,Garfield and Friends |
| 1627 | GALCIT,Guggenheim Aeronautical Laboratory,California Institute of Technology |
| 1628 | GAO,U.S. Government Accountability Office |
| 1629 | GAW,Global Atmospheric Watch |
| 1630 | GB,Gabon (FIPS 10-4 country code),United Kingdom of Great Britain and Northern Ireland (ISO 3166 digram) [glamour boy 7-9/10] |
| 1631 | GBBC,Great (Global) Backyard Bird Count |
| 1632 | GBE,Knight/Dame Grand Cross of the Order of the British Empire |
| 1633 | GBH,Great Bash Heel (Japanese professional wrestling stable),Gregory Bonner Hale (British design and advertising agency),Grievous bodily harm |
| 1634 | GBP,United Kingdom pound sterling (ISO 4217 currency code) |
| 1635 | GBR,United Kingdom of Great Britain and Northern Ireland (ISO 3166 trigram) |
| 1636 | GBU,Glide-Bomb Unit,Global Business Unit |
| 1637 | GC,East Germany (NATO country code; obsolete 1990),General classification (cycling),General counsel,George Cross (British civil decoration),Gigacoulomb [Grindr cruise] |
| 1638 | GCA,Graduate in Claims Administration |
| 1639 | GCD,see entry |
| 1640 | GCF,Greatest Common Factor |
| 1641 | GCI,Ground-controlled interception |
| 1642 | GCN,Gamma-ray burst Coordination Network |
| 1643 | GCS,Global Coordinate System |
| 1644 | GCSE,General Certificate of Secondary Education (UK) |
| 1645 | Gd,Gadolinium |
| 1646 | GD,Grenada (ISO 3166 digram) |
| 1647 | gd,Scottish Gaelic language (ISO 639-1 code) |
| 1648 | GDC,Game Developers Conference,General Dental Council |
| 1649 | GDL,Game Definition Language |
| 1650 | GDP,General Dental Practitioner (UK),Gross Domestic Product |
| 1651 | GDR,General Distribution Release (Microsoft Term for a software service release; between Hotfix and Service Pack) |
| 1652 | GDR,German Democratic Republic (cf. DDR) |
| 1653 | GDW,Game Designers Workshop |
| 1654 | GE,General Electric,Genetic Engineering (cf. GM),Georgia (ISO 3166 digram) |
| 1655 | Ge,Germanium |
| 1656 | GEBCO,General Bathymetric Chart of the Oceans |
| 1657 | GEC,Great Engineering Challenge |
| 1658 | GED,General Educational Development (high school equivalency credential in the U.S. and Canada) |
| 1659 | GEEP,Geophysical Equipment Exploration Platform |
| 1660 | GEL,Georgian lari (ISO 4217 currency code),Gilbert and Ellice Islands (ISO 3166 trigram; obsolete 1977) |
| 1661 | 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 |
| 1662 | GEN,Full General (four stars) in the U.S. Army |
| 1663 | GEO,Geostationary Earth Orbit,Georgia (ISO 3166 trigram) |
| 1664 | GEQ,Equatorial Guinea (IOC trigram,but not FIFA or ISO 3166) |
| 1665 | GER,Germany (IOC and FIFA trigram,but not ISO 3166) |
| 1666 | GeV,Gigaelectron-volt |
| 1667 | GEV,Ground Effect Vehicle |
| 1668 | GF,French Guiana (ISO 3166 digram),Gigafarad |
| 1669 | GFCF,Gluten-free,casein-free diet,Gross fixed capital formation |
| 1670 | GFCI,Ground Fault Circuit Interruptor (aka GFI) |
| 1671 | GFE,Girlfriend experience (used in escort services),Good Faith Estimate,Government Furnished Equipment |
| 1672 | GFI,Ground Fault Interruptor (aka GFCI) |
| 1673 | GFL,German Football League (Germany's Bundesliga for American football; the English-language name is used in German without translation) |
| 1674 | GFN,Global Footprint Network |
| 1675 | GG,Georgia (FIPS 10-4 country code) |
| 1676 | GGK,Good God Karma |
| 1677 | GGP,General Game Playing,General Growth Properties (U.S. shopping center owner),GH[edit] |
| 1678 | GH,Ghana (ISO 3166 digram; FIPS 10-4 country code),Gigahenry |
| 1679 | GHA,Ghana (ISO 3166 trigram) |
| 1680 | GHB,gamma-Hydroxybutyric acid |
| 1681 | GHC,Ghanan cedi (ISO 4217 currency code) |
| 1682 | GI,Galvanised Iron,Gastro-Intestinal,General Issue,Gibraltar (ISO 3166 digram; FIPS 10-4 territory code),Government Issue |
| 1683 | Gi,Gibi |
| 1684 | GIB,Gibraltar (ISO 3166 trigram) |
| 1685 | GIG,Global Information Grid |
| 1686 | GIN,Guinea (ISO 3166 trigram),Guidelines International Network |
| 1687 | GINK,Going Insane Not Knowing,orig. Colorado 2010 M.Kalfas |
| 1688 | GINO,Godzilla In Name Only |
| 1689 | GIP,Gibraltar pound (ISO 4217 currency code) |
| 1690 | GISS,(a/i) General Impression of Size and Shape,Goddard Institute for Space Studies |
| 1691 | GJ,Gigajoule,Grenada (FIPS 10-4 country code),Gujarat (Indian state code) |
| 1692 | GJD,Geocentric Julian Day |
| 1693 | GK,Gigakelvin,Guernsey (FIPS 10-4 territory code) |
| 1694 | gl,Galician language (ISO 639-1 code) |
| 1695 | GL,Gigalitre,Graphics Language,Greenland (ISO 3166 digram; FIPS 10-4 territory code),Grenade Launcher |
| 1696 | gla,Scottish Gaelic language (ISO 639-2 code) |
| 1697 | GLAAD,Gay and Lesbian Alliance Against Defamation |
| 1698 | GLAC,General Ledger Accounting Code |
| 1699 | GLAST,Gamma-ray Large Area Space Telescope |
| 1700 | GLBA,Gramm-Leach-Bliley Act |
| 1701 | GLC,Gas-liquid chromatography |
| 1702 | gle,Irish language (ISO 639-2 code) |
| 1703 | glg,Galician language (ISO 639-2 code) |
| 1704 | 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 |
| 1705 | GLP,Guadeloupe (ISO 3166 trigram) |
| 1706 | GLV,Gained Life Value |
| 1707 | glv,Manx language (ISO 639-2 code) |
| 1708 | Gm,Gigametre |
| 1709 | GMC,U.K. General Medical Council,Gospel Music Channel |
| 1710 | GMD,Gambian dalasi (ISO 4217 currency code) |
| 1711 | GMFSC,Ground Mobile Forces Satellite Communications |
| 1712 | GMI,Generic Model Interface,Geometry Model Instance |
| 1713 | GMO,Genetically Modified Organism |
| 1714 | GMPCS,Global Mobile Personal Communications by Satellite |
| 1715 | GMT,Giant Magellan Telescope,Greenwich Mean Time,GN[edit] |
| 1716 | GN,Giganewton,Guinea (ISO 3166 digram) |
| 1717 | gn,Guaraní language (ISO 639-1 code) |
| 1718 | GNAS,Grand National Archery Society |
| 1719 | GNB,Guinea-Bissau (ISO 3166 trigram) |
| 1720 | GNF,Guinean franc (ISO 4217 currency code) |
| 1721 | GNP,Gross National Product |
| 1722 | GNQ,Equatorial Guinea (ISO 3166 trigram) |
| 1723 | GnRH,Gonadotropin-Releasing Hormone |
| 1724 | GO,Glorioso Islands (FIPS 10-4 territory code) |
| 1725 | GOA,General of the Army (United States only) |
| 1726 | GOAT,Greatest Of All Time |
| 1727 | GOC,General Officer Commanding |
| 1728 | GOES,Geostationary Operational Environmental Satellite |
| 1729 | GOP,Grand Old Party |
| 1730 | GOSC,General Officer Steering Committee |
| 1731 | GOSH,Great Ormond Street Hospital |
| 1732 | GOSP,Gas/Oil Separation Plant |
| 1733 | GOTS,Government off-the-shelf |
| 1734 | GPA,Grade Point Average |
| 1735 | GPC,Global Path Cache |
| 1736 | GPIB,General-Purpose Instrumentation/Interface Bus |
| 1737 | GPO,General Post Office |
| 1738 | GPPC,Genetics and Public Policy Center |
| 1739 | GPR,Ground-Penetrating Radar |
| 1740 | GRAIL,Gravity Recovery and Interior Laboratory |
| 1741 | GRAS,Generally recognized as safe (FDA list) |
| 1742 | GRB,Gamma-Ray Burst |
| 1743 | GRC,Greece (ISO 3166 trigram) |
| 1744 | GRD,Grenada (ISO 3166 trigram) |
| 1745 | GRID,Gay-Related Immune Deficiency (original name of AIDS) |
| 1746 | GriT,Girl raised in Texas (Woman presenting firm southern traits/beliefs) |
| 1747 | GRL,Greenland (ISO 3166 trigram) |
| 1748 | grn,Guaraní language (ISO 639-2 code) |
| 1749 | GRP,Graphite-reinforced plastic,see Carbon-fiber-reinforced polymer |
| 1750 | GS,General Schedule (US civil service pay scale),General Support,Gigasiemens,South Georgia and the South Sandwich Islands (ISO 3166 digram) |
| 1751 | Gs,Gigasecond |
| 1752 | GSA,U.S. General Services Administration |
| 1753 | GSD,Graphical Situation Display |
| 1754 | GSGB,(God send glamour boy 9-10/10) |
| 1755 | GSK,GlaxoSmithKline [good sexual karma] |
| 1756 | GSN,(a/i) Game Show Network |
| 1757 | GSO,General Services Officer (U.S. Department of State) |
| 1758 | GSOH,Good Sense Of Humour |
| 1759 | GSP,Georges St-Pierre (Canadian MMA fighter) |
| 1760 | GSR,Gun Shot Residue |
| 1761 | GSS,Generic Security Services |
| 1762 | GST,Goods and Services Tax (Australia,Canada,and other countries) |
| 1763 | GSW,Gunshot wound |
| 1764 | GT,Gigatesla,Gran Turismo,Grand Touring,Guatemala (FIPS 10-4 country code; ISO 3166 digram) |
| 1765 | GTB,Get to bed,namely to get a new job after a long time of searching,usually following a phone call |
| 1766 | GTC,Gran Telescopio Canarias (Spanish,Canaries Great Telescope) |
| 1767 | GTD,Getting Things Done |
| 1768 | GTG,Got To Go (Internet chat) |
| 1769 | GTGN,Getty Thesaurus of Geographic Names |
| 1770 | GTK,Good To Know (Internet chat) |
| 1771 | GTM,Guatemala (ISO 3166 trigram) |
| 1772 | GTQ,Guatemalan quetzal (ISO 4217 currency code) |
| 1773 | GTV,Gross Tumor Volume quetzal (ISO 4217 currency code) |
| 1774 | GU,Guam (postal symbol; ISO 3166 digram) |
| 1775 | gu,Gujarati language (ISO 639-1 code) |
| 1776 | GUA,Guatemala (IOC and FIFA trigram,but not ISO 3166) |
| 1777 | GUF,French Guiana (ISO 3166 trigram) |
| 1778 | GUILT,Gangliated Utrophin Immuno Latency Toxin |
| 1779 | guj,Gujarati language (ISO 639-2 code) |
| 1780 | GULCR,Grupo de Usuarios de Linux de Costa Rica |
| 1781 | GUT,Grand Unification Theory |
| 1782 | GV,Gigavolt,Guinea (FIPS 10-4 country code) |
| 1783 | gv,Manx language (ISO 639-1 code) |
| 1784 | GW,Games Workshop,Germ Warfare,Gigawatt,Guided Weapon,Guinea-Bissau (ISO 3166 digram) |
| 1785 | GWARS,Ground Warfare System (simulation) |
| 1786 | GWAS,Grand Western Archery Society |
| 1787 | GWOT,Global War on Terrorism |
| 1788 | GWS,Gulf War Syndrome,Greater Western Sydney |
| 1789 | GXE,Gene-enivronment interaction |
| 1790 | GXM,Matrox Graphics eXpansion Module |
| 1791 | GxP,Good X Practice (X can mean: clinical,manufacturing,pharmaceutical,etc.) |
| 1792 | GXP,Grid Exit Point,Global Xchange Programme,Indication of highest performance level on some Pontiac vehicles |
| 1793 | GY,Guyana (FIPS 10-4 country code; ISO 3166 digram) |
| 1794 | GYD,Guyana dollar (ISO 4217 currency code) |
| 1795 | GZ,Gaza Strip (FIPS 10-4 territory code),Ground Zero |
| 1796 | GZK,Greisen-Zatsepin-Kuzmin cut-off (cosmic ray energies) |
| 1797 | h,Hecto |
| 1798 | H,Henry,Hydrogen |
| 1799 | HA,Haiti (FIPS 10-4 country code),High Availability |
| 1800 | ha,Hausa language (ISO 639-1 code),Hectare |
| 1801 | HAARP,High Frequency Active Auroral Research Program |
| 1802 | HAART,Highly Active Anti-Retroviral Therapy |
| 1803 | HAI,Human Awareness Institute |
| 1804 | HAL,Hardware Abstraction Layer |
| 1805 | HALO,High Altitude Low Opening (parachute jump) |
| 1806 | HALT,Highly Accelerated Life Test,Hungry Angry Lonely Tired |
| 1807 | HAM,Amateur radio operator |
| 1808 | HANS,Head And Neck Support (device used in many race cars) |
| 1809 | HARM,High-speed Anti-Radiation Missile |
| 1810 | hat,Haitian Creole language (ISO 639-2 code) |
| 1811 | HAT,Highest Astronomical Tide (nautical charts),Hungarian Automated Telescope |
| 1812 | hau,Hausa language (ISO 639-2 code) |
| 1813 | HAW,Heavy Antitank Weapon |
| 1814 | HAWK,Homing All the Way Killer (air defence system) |
| 1815 | HAZ,Heat-Affected Zone |
| 1816 | HAZMAT,Hazardous Materials |
| 1817 | HBCD,HexaBromoCycloDodecane |
| 1818 | HBO,Home Box Office |
| 1819 | HBR,Harvard Business Review |
| 1820 | HBT,Heterojunction Bipolar Transistor |
| 1821 | HBV,Hepatitis B Virus |
| 1822 | HCCI,Homogeneous Charge Compression Ignition |
| 1823 | HCF,Highest Common Factor |
| 1824 | HCSC,Higher Command and Staff Course |
| 1825 | HCT,Higher Colleges of Technology,tertiary education institution in the United Arab Emirates (UAE) |
| 1826 | HD,Henry Draper (star catalogue),Hull-Down (armoured vehicle target,as opposed to Fully Exposed),High Definition,Huntington's Disease |
| 1827 | HDL,High-Density Lipoprotein |
| 1828 | HDM,Human Decision-Making |
| 1829 | HDR,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) |
| 1830 | HDRA,Henry Doubleday Research Association |
| 1831 | he,Hebrew language (ISO 639-1 code) |
| 1832 | He,Helium |
| 1833 | HE,High Explosive |
| 1834 | HEAT,High Explosive Anti-Tank (ammunition) |
| 1835 | heb,Hebrew language (ISO 639-2 code) |
| 1836 | HEBA,Hellenic Basketball Clubs Association |
| 1837 | HEER,High-Explosive Extended Range (ammunition) |
| 1838 | HEIC,Honourable East India Company |
| 1839 | HEMP,High-Altitude Electromagnetic Pulse |
| 1840 | HEO,High Earth Orbit,Highly Elliptical Orbit |
| 1841 | HEOSS,High Earth Orbit Space Surveillance |
| 1842 | HEP,High-Explosive Plastic (ammunition) |
| 1843 | HEPA,(a/i) High-Efficiency Particulate Air (filter) |
| 1844 | her,Herero language (ISO 639-2 code) |
| 1845 | HESH,High-Explosive,Squash-Head (ammunition) |
| 1846 | HESV,Heavy Engineering Support Vehicle |
| 1847 | HETT,Heavy Equipment Transporting Truck / Heavy Equipment Truck Tractor |
| 1848 | HEU,Highly Enriched Uranium |
| 1849 | Hewitts,Hills in England,Wales and Ireland over Two Thousand feet (with topographic prominence of at least 30 m) |
| 1850 | Hf,Hafnium |
| 1851 | HF,High Frequency |
| 1852 | HFE,Human Fertilisation and Embryology (UK Act) |
| 1853 | HFE,The common-emitter current gain in a BJT transistor (also represented by βF). See: BJT |
| 1854 | HFEA,Human Fertilisation and Embryology Authority (UK) |
| 1855 | Hg,Mercury (Latin Hydrargyrum) |
| 1856 | HGC,UK Human Genetics Commission |
| 1857 | HGF,Human Growth Factor |
| 1858 | HGTV,Home & Garden Television |
| 1859 | HHB,Ha Ha Bonk,The noise made when you laugh your head off. Used instead of LOL... |
| 1860 | HI,Hawaii (postal symbol) |
| 1861 | hi,Hindi language (ISO 639-1 code) |
| 1862 | HIH,His (or Her) Imperial Highness |
| 1863 | HIM,His (or Her) Imperial Majesty |
| 1864 | HIMAD,High to Medium Altitude Air Defence (see also H/MAD) |
| 1865 | HIMEZ,High Altitude Missile Engagement Zone |
| 1866 | HIMYM,How I Met Your Mother |
| 1867 | hin,Hindi language (ISO 639-2 code) |
| 1868 | HIPAA,U.S. Health Insurance Portability and Accountability Act |
| 1869 | Hipparcos,HIgh Precision Parallax COllecting Satellite |
| 1870 | Hird,Hurd of interfaces representing depth (cf. HURD) |
| 1871 | HiRISE,High Resolution Imaging Science Experiment |
| 1872 | HIT,Health Information Technology |
| 1873 | HIV,Human Immunodeficiency Virus |
| 1874 | HIWT,Hobart Institute of Welding Technology |
| 1875 | HJD,Heliocentric Julian Day |
| 1876 | HK,Hong Kong (ISO 3166 digram; FIPS 10-4 territory code) |
| 1877 | HKD,Hong Kong dollar (ISO 4217 currency code) |
| 1878 | HKG,Hong Kong (ISO 3166 trigram) |
| 1879 | HKS,HyperKinetic Syndrome |
| 1880 | hL,Hectolitre |
| 1881 | HL,Holding Line |
| 1882 | HLA,High Level Architecture (simulation),Human Leukocyte Antigen |
| 1883 | HLL,High-Level Language |
| 1884 | HLN,Headline News |
| 1885 | HLOS,High Level Output Specification |
| 1886 | HLVW,Heavy Logistics Vehicle,Wheeled |
| 1887 | HM,Heard Island and McDonald Islands (ISO 3166 digram; FIPS 10-4 territory code) |
| 1888 | HMCE,Her/His Majesty's Customs and Excise (former UK government department; succeeded by HM Revenue and Customs) |
| 1889 | HMCS,Her/His Majesty's Canadian Ship,Her Majesty's Courts Service (former UK agency; succeeded by Her Majesty's Courts and Tribunals Service) |
| 1890 | HMD,Heard and McDonald Islands (ISO 3166 trigram) |
| 1891 | HMF,HydroxyMethyl Furfural |
| 1892 | HMO,Health maintenance organization |
| 1893 | hmo,Hiri Motu language (ISO 639-2 code) |
| 1894 | HMP,Her Majesty's Prison |
| 1895 | HMRC,Her/His Majesty's Revenue and Customs |
| 1896 | HMS,Helmet-mounted display,Her/His Majesty's Ship (Royal Navy) |
| 1897 | HMSO,Her Majesty's Stationery Office |
| 1898 | HMV,His Master's Voice |
| 1899 | HN,Honduras (ISO 3166 digram) |
| 1900 | HND,Honduras (ISO 3166 trigram) |
| 1901 | HNL,Honduran lempira (ISO 4217 currency code) |
| 1902 | ho,Hiri Motu language (ISO 639-1 code) |
| 1903 | Ho,Holmium |
| 1904 | HO,Honduras (FIPS 10-4 country code) |
| 1905 | HOLLAND,Hope Our Love Lasts And Never Dies |
| 1906 | HOMES,the Great Lakes; Huron,Ontario,Michigan,Erie,Superior |
| 1907 | HONY,Humans of New York,a photoblog. |
| 1908 | HOPI,Hybrid Optical and Packet Infrastructure (see Internet2,Abilene Network) |
| 1909 | HoReCa,Hotel,Restaurant and Catering |
| 1910 | HORIZON,Hélicoptère d'observation radar et d'investigation sur zone (French,Zone Investigation and Radar Observation Helicopter) |
| 1911 | HOSTAC,Helicopter Operations from Ships Other Than Aircraft Carriers |
| 1912 | HOT,Highly Optimised Tolerance |
| 1913 | HOTAS,Hands on throttle-and-stick |
| 1914 | HOV,High Occupancy Vehicle |
| 1915 | HP,Hewlett-Packard,Hindustan Petroleum,Himachal Pradesh (Indian state code) |
| 1916 | hp,horse power |
| 1917 | HPA,UK Health Protection Agency |
| 1918 | HPCL,Hindustan Petroleum Corporation Limited |
| 1919 | HPLC,High Performance Liquid Chromatography |
| 1920 | HPT,High[er] Payoff Target |
| 1921 | HPV,Human Papilloma Virus |
| 1922 | HQ,HeadQuarters,Howland Island (FIPS 10-4 territory code) |
| 1923 | HQDA,HeadQuarters,Department of the Army |
| 1924 | 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 |
| 1925 | hr,Croatian language (ISO 639-1 code) |
| 1926 | HRBL,High-level Representation of Behavior Language (original name of the Herbal language) |
| 1927 | HRD,Human Resource Development |
| 1928 | HRED,(U.S. Army Research Laboratory's) Human Research and Engineering Directorate (Aberdeen Proving Ground,Maryland) |
| 1929 | HRF,High iness Forces |
| 1930 | HRH,His (or Her) Royal Highness |
| 1931 | HRK,Croatian kuna (ISO 4217 currency code) |
| 1932 | HRM,His (or Her) Royal Majesty |
| 1933 | HRM,Human Resource Management |
| 1934 | HRT,Hormone Replacement Therapy |
| 1935 | HRV,Croatia (ISO 3166 trigram),High Resolution Visible,HS[edit] |
| 1936 | hrv,Croatian language (ISO 639-2 code) |
| 1937 | Hs,Hassium |
| 1938 | HSBC,The Hong Kong and Shanghai Banking Corporation |
| 1939 | HSC,Higher School Certificate |
| 1940 | HSM,High School Musical |
| 1941 | HSMAD,Human Science/Modeling and Analysis Data |
| 1942 | HSN,Home Shopping Network |
| 1943 | HSPH,Harvard School of Public Health |
| 1944 | HSS,Health Service Support,High-Speed Steel |
| 1945 | HSSI,High-Speed Serial Interface |
| 1946 | HST,see entry |
| 1947 | HSV,Herpes Simplex Virus,Hue Saturation Value (colour model),HT[edit] |
| 1948 | ht,Haitian Creole language (ISO 639-1 code) |
| 1949 | HTA,HyperText Application |
| 1950 | HTC-High Tech Computer Corporation,original name of the company now known simply as HTC,Horry Telephone Cooperative |
| 1951 | HTFU,Harden The Fuck Up |
| 1952 | HTG,Haitian gourde (ISO 4217 currency code) |
| 1953 | HTH,Hope That Helps |
| 1954 | HTI,Haiti (ISO 3166 trigram) |
| 1955 | HTML,HyperText Markup Language |
| 1956 | HTR,Heated Towel Rail |
| 1957 | HTS,High-Temperature Superconducting wire |
| 1958 | HTTP,HyperText Transfer Protocol |
| 1959 | HU,Hungary (ISO 3166 digram; FIPS 10-4 country code) |
| 1960 | HUD,Head-Up Display,Housing and Urban Development |
| 1961 | HUF,Hungarian forint (ISO 4217 currency code) |
| 1962 | HUHA,Head up his/her ass (Marine salute; probably a backcronym) |
| 1963 | hun,Hungarian language (ISO 639-2 code) |
| 1964 | HUN,Hungary (ISO 3166 trigram) |
| 1965 | HURD,Hird of Unix-Replacing Daemons (cf. Hird) |
| 1966 | HV,Upper Volta (ISO 3166 digram; obsolete 1984) |
| 1967 | 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. |
| 1968 | HVAP,High Velocity Armour Piercing (ammunition) |
| 1969 | HVHF,High velocity human factors |
| 1970 | HVM,High Velocity Missile |
| 1971 | HVO,Upper Volta (ISO 3166 trigram; obsolete 1984) |
| 1972 | 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 |
| 1973 | HW,Hardware,High Water (nautical charts) |
| 1974 | HWM,Hardware morphing (computer graphics rendering) |
| 1975 | HX,IATA code of Hong Kong Airlines,Medical history,Hydrogen halide,Concept automobile by HUMMER |
| 1976 | HXB,The glycoprotein Tenascian C |
| 1977 | hy,Armenian language (ISO 639-1 code) |
| 1978 | hye,Armenian language (ISO 639-2 code) |
| 1979 | HYS,Harvard,Yale,Stanford (perennially named as the top three law schools in the U.S.) |
| 1980 | HZ,Haze (METAR Code) |
| 1981 | hz,Herero language (ISO 639-1 code) |
| 1982 | Hz,Hertz |
| 1983 | I,Iodine,One (in Roman numerals) |
| 1984 | ia,Interlingua language (ISO 639-1 code) |
| 1985 | IA,Iowa (postal symbol) |
| 1986 | IAAL,I Am A Lawyer |
| 1987 | IAB,International Association for Biologicals |
| 1988 | IACREOT,International Association of Clerks,Recorders,Election Officials,and Treasurers |
| 1989 | IAD,Ion Assisted Deposition |
| 1990 | IADS,Integrated Air Defence System |
| 1991 | IAEA,International Atomic Energy Agency |
| 1992 | IAF,{i} Industrial Areas Foundation |
| 1993 | IAFG,Information Assurance Focus Group |
| 1994 | IAI,International African Institute,Israel Aircraft Industries |
| 1995 | IANA,Internet Assigned Numbers Authority |
| 1996 | IANAL,I Am Not A Lawyer |
| 1997 | IAQ,Indoor air quality,Infrequently Asked Questions |
| 1998 | IAS,Image Assessment System |
| 1999 | IASIP,It's Always Sunny in Philadelphia |
| 2000 | IATA,(a/i) International Air Transport Association |
| 2001 | IATF,International Automotive Task Force |
| 2002 | IATSE,International Alliance of Theatrical Stage Employees |
| 2003 | IAU,International Association of Universities,International Astronomical Union |
| 2004 | IAUC,International Astronomical Union Circular |
| 2005 | IAW,In Accordance With |
| 2006 | IB,International Baccalaureate |
| 2007 | IBA,Important Bird Area |
| 2008 | IBD,Inflammatory Bowel Disease |
| 2009 | IBDM,Information Based Decision Making |
| 2010 | IBDS,Integrated Biological Detection System,International Business Development Specialist |
| 2011 | IBM,International Business Machines |
| 2012 | ibo,Igbo language (ISO 639-2 code) |
| 2013 | IBRD,International Bank for Reconstruction and Development (part of the World Bank) |
| 2014 | IBS,Irritable Bowel Syndrome |
| 2015 | IC,Ice Crystals (METAR Code),Iceland (FIPS 10-4 country code),Integrated Circuit,[inner circle] |
| 2016 | ICANN,Internet Corporation for Assigned Names and Numbers |
| 2017 | ICAO,International Civil Aviation Organization |
| 2018 | ICBM,Intercontinental Ballistic Missile |
| 2019 | ICBN,International Code of Botanical Nomenclature |
| 2020 | ICC,Integrated Command and Control,International Criminal Court,International Cricket Council,Interstate Commerce Commission,International Chamber of Commerce |
| 2021 | ICD,Implantable Cardioverter-Defibrillator,Initial Capabilities Document,International Classification of Diseases |
| 2022 | ICE,In case of emergency |
| 2023 | ICES,(a/i) International Council for the Exploration of the Sea |
| 2024 | ICF,Intelligent Community Forum |
| 2025 | ICM,Improved Conventional Munition,Integrated Collection Management,International Congress of Mathematicians,Iraq Campaign Medal |
| 2026 | ICMP,Internet Control Message Protocol |
| 2027 | ICNAF,International Commission for the Northwest Atlantic Fisheries (became NAFO in 1978) |
| 2028 | ICNI,Integrated Communication,Navigation,and Identification |
| 2029 | ICO,Intermediate Circular Orbit |
| 2030 | ICP,Inductively coupled plasma,Insane Clown Posse |
| 2031 | ICPE,(a/i) International Conference on Pharmacoepidemiology,the annual conference of the International Society for Pharmacoepidemiology |
| 2032 | ICRAF,International Centre for Research in Agroforestry (a.k.a. World Agroforestry Centre since 2002) |
| 2033 | ICRISAT,International Crops Research Institute for the Semi-Arid Tropics |
| 2034 | ICRL,Individual Component Repair List |
| 2035 | ICRS,International Celestial Reference System |
| 2036 | ICS,In-Country Support,Intelligence and Communications Systems,Interim Contractor Support |
| 2037 | ICSI,Intracytoplasmic Sperm Injection |
| 2038 | ICT,Information and communication technologies |
| 2039 | ICTH,Island Closest to Heaven/Hell Final Fantasy VIII |
| 2040 | ICV,Infantry Carrier Vehicle |
| 2041 | ICW,In Co-ordination With,Indonesia Corruption Watch,Infectious and Chemotherapeutic Waste,Insulating Concrete Wall,Integral Crystalline Waterproofing,Interactive Courseware |
| 2042 | ICYMI,In Case You Missed It |
| 2043 | ICZN,International Code of Zoological Nomenclature,International Commission on Zoological Nomenclature |
| 2044 | 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) |
| 2045 | id,Indonesian language (ISO 639-1 code) |
| 2046 | IDA,U.S. Institute for Defense Analyses,International Development Association (part of the World Bank |
| 2047 | IDC,International Data Corporation |
| 2048 | IDDI,I don't do initialisms (see irony) |
| 2049 | IDE,Integrated Development Environment,Integrated Drive Electronics |
| 2050 | IDeA,Improvement and Development Agency,the former name of Local Government Improvement and Development in the United Kingdom |
| 2051 | IDEA,Individuals with Disabilities Education Act (U.S.),International Data Encryption Algorithm,International Design Excellence Awards |
| 2052 | IDF,Israel Defense Forces,Intel Development Forum,International Dairy Federation |
| 2053 | IDGAF,I don't give a fuck |
| 2054 | IDK,I don't know |
| 2055 | IDKIBTI,I don't know,I'm black,that's it |
| 2056 | IDL,Interface Definition Language |
| 2057 | IDN,Indonesia (ISO 3166 trigram) |
| 2058 | ido,Ido language (ISO 639-2 code) |
| 2059 | IDR,Indonesian rupiah (ISO 4217 currency code) |
| 2060 | IE,Indo-European languages,Internet Explorer,Ireland (ISO 3166 digram),Iced Earth |
| 2061 | ie,Interlingue language (ISO 639-1 code) |
| 2062 | IEA,International Energy Agency |
| 2063 | IEC,International Electrotechnical Commission |
| 2064 | IED,Improvised Explosive Device |
| 2065 | IELTS,International English Language Testing System |
| 2066 | IER,Information Exchange Requirement |
| 2067 | IET,Initial Entry Training |
| 2068 | IET,Institution of Engineering and Technology |
| 2069 | IETF,Internet Engineering Task Force |
| 2070 | IEW,Intelligence and Electronic Warfare |
| 2071 | IFAB,International Football Association Board |
| 2072 | IFAH,International Federation for Animal Health |
| 2073 | IFAP,International Federation of Agricultural Producers |
| 2074 | IFC,International Finance Corporation (part of the World Bank),Independent Film Channel |
| 2075 | IFF,Identification,Friend or Foe,Individually Fresh Frozen,International Flavors and Fragrances |
| 2076 | IFFN,Identification,Friend,Foe,or Neutral |
| 2077 | IFO,Identified Flying Object (see also UFO) |
| 2078 | IFOR,UN Implementation Force,Institute for Operations Research,International Fellowship of Reconciliation |
| 2079 | IFOV,Instantaneous Field of View |
| 2080 | IFPI,International Federation of Phonographic Industries |
| 2081 | IFRB,International Frequency Registration Board |
| 2082 | IFV,Infantry Fighting Vehicle |
| 2083 | ig,Igbo language (ISO 639-1 code) |
| 2084 | IG,Inspector General |
| 2085 | IGNOU,Indira Gandhi National Open University |
| 2086 | IGS,International Ground Station |
| 2087 | IGY,Israeli Gay Youth,International Geophysical Year |
| 2088 | IHH,Idiopathic Hypogonadotropic Hypogonadism |
| 2089 | IHO,International Hydrographic Organization |
| 2090 | IHR,Institute for Historical Review |
| 2091 | IHSI,Institutum Historicum Societatis Iesu (Jesuit Historical Institute) |
| 2092 | ii,Sichuan Yi language (ISO 639-1 code) |
| 2093 | II,Two (in Roman numerals) |
| 2094 | IICA,Inter-American Institute for Cooperation on Agriculture |
| 2095 | IIE,Innovative Interstellar Explorer |
| 2096 | iii,Sichuan Yi language (ISO 639-2 code) |
| 2097 | III,Three (in Roman numerals) |
| 2098 | IIRC,If I Recall/Remember Correctly |
| 2099 | IISS,International Institute for Strategic Studies |
| 2100 | IIT,Illinois Institute of Technology,Indian Institutes of Technology,Indiana Institute of Technology |
| 2101 | IJN,Imperial Japanese Navy (World War II) |
| 2102 | IJWP,Interim Joint Warfare Publication |
| 2103 | ik,Inupiaq language (ISO 639-1 code) |
| 2104 | IKEA,Ingvar Kamprad (the company's founder),Elmtaryd (the farm where he was born and raised),Agunnaryd (a village and parish near the farm) |
| 2105 | iku, Inuktitut language (ISO 639-2 code) |
| 2106 | IL,Illinois (postal symbol),Israel (ISO 3166 digram) |
| 2107 | ILC,International Law Commission,International Linear Collider |
| 2108 | ILDS,Improved Landmine Detection System |
| 2109 | ile,Interlingue language (ISO 639-2 code) |
| 2110 | ILO,International Labour Organization |
| 2111 | ILRI,International Livestock Research Institute |
| 2112 | ILS,Israeli shekel (ISO 4217 currency code) |
| 2113 | ILY,I Love You [pronounced ILL-LEE] |
| 2114 | IM,Isle of Man (FIPS 10-4 territory code),Instant Message (internet speech) |
| 2115 | IMA,Intermediate Maintenance Activity,Institute of Mathematics and Applications |
| 2116 | IMBD,International Migratory Bird Day |
| 2117 | IMDb,Internet Movie Database |
| 2118 | IME,In My Experience |
| 2119 | 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) |
| 2120 | IML,International Mister Leather |
| 2121 | IMLAST,International Movement for Leisure Activities in Science and Technology,see MILSET |
| 2122 | IMNM,,Immune-mediated necrotizing myopathy a rare,but serious ADR of statins [1] |
| 2123 | IMNSHO,In My Not So Humble Opinion |
| 2124 | IMPAC,International Merchant Purchase Authorization Card |
| 2125 | IMPACT,International Medical Products Anti-Counterfeiting Taskforce |
| 2126 | IMPATT,IMPact Avalanche Transit Time diode |
| 2127 | IMPT,Institute of Maxillofacial Prosthetists and Technologists |
| 2128 | IMRL,Individual Material iness List |
| 2129 | IMRO-Internal Macedonian Revolutionary Organization,Irish Music Rights Organisation |
| 2130 | IMS,Information Management System,International Meat Secretariat,Ion Mobility Spectrometer |
| 2131 | IMSA,Illinois Mathematics and Science Academy,International Mind Sports Association,International Motor Sports Association |
| 2132 | IMsL,International Ms. Leather |
| 2133 | IMT,Integrated Management Tool |
| 2134 | IMU,International Mathematical Union |
| 2135 | IN,India (FIPS 10-4 country code; ISO 3166 digram),Indiana (postal symbol),Infantry |
| 2136 | In,Indium |
| 2137 | INA,Immigration and Nationality Act |
| 2138 | ina,Interlingua language (ISO 639-2 code) |
| 2139 | INAS,International Near-Earth Asteroid Survey |
| 2140 | INCITS,InterNational Committee for Information Technology Standards |
| 2141 | IND,India (ISO 3166 trigram) |
| 2142 | ind,Indonesian language (ISO 639-2 code) |
| 2143 | INDIGO,(U.S.) INtelligence DIvision Gaming Operation |
| 2144 | inet,the Internet |
| 2145 | INFORMS,(U.S.) Institute for Operations Research and the Management Sciences |
| 2146 | INFOSEC,Information Security |
| 2147 | INLA,Irish National Liberation Army |
| 2148 | INMARSAT,International Maritime Satellite organization |
| 2149 | INR,Indian rupee (ISO 4217 currency code) |
| 2150 | INRIA,Institut national de recherche en informatique et en automatique |
| 2151 | INS,Immigration and Naturalization Service |
| 2152 | InSAR,Interferometric synthetic aperture radar |
| 2153 | INST,Information Standards and Technology |
| 2154 | INTERFET,International Force for East Timor |
| 2155 | INTSUM,Intelligence Summary |
| 2156 | IO,British Indian Ocean Territory (ISO 3166 digram; FIPS 10-4 territory code) |
| 2157 | io,Ido language (ISO 639-1 code) |
| 2158 | IOC,Initial Operational Capability,Intergovernmental Oceanic Commission,International Olympic Committee,International Ornithological Congress |
| 2159 | IOLTA,Interest on Lawyer Trust Accounts (charitable funding mechanism,especially for legal aid) |
| 2160 | IOM,Iowa,Ohio,Michigan (soybean origin),Institute of Medicine,International Organisation for Migration,Isle of Man |
| 2161 | IONA,Islands of the North Atlantic (alternate name for Great Britain,Ireland,the Isle of Man,and related islands) |
| 2162 | IOT,British Indian Ocean Territory (ISO 3166 trigram) |
| 2163 | IP,Clipperton Island (FIPS 10-4 territory code),Initial Point,Intellectual Property,Internet Protocol |
| 2164 | IPA,India Pale Ale,International Phonetic Alphabet,Isopropyl alcohol |
| 2165 | IPB,Intelligence Preparation of the Battlefield |
| 2166 | IPCC,Intergovernmental Panel on Climate Change,Independent Police Complaints Commission |
| 2167 | ipk,Inupiaq language (ISO 639-2 code) |
| 2168 | IPL,Inferior Parietal Lobule |
| 2169 | IPO,Initial Public Offering |
| 2170 | IPR,In Progress Review,Intellectual Property Rights,Intelligence Production Requirement |
| 2171 | IPT,Integrated Product/Project Team |
| 2172 | IPTS,Institute for Prospective Technological Studies |
| 2173 | IPTV,Internet Protocol TeleVision |
| 2174 | IPW,Interrogation of Prisoners of War |
| 2175 | IQ,Intelligence Quotient,Iraq (ISO 3166 digram) |
| 2176 | IQD,Iraqi dinar (ISO 4217 currency code) |
| 2177 | Ir,Iridium |
| 2178 | 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) |
| 2179 | IRAD,Internal Research and Development |
| 2180 | IRAN,(I) Inspect and Repair As Necessary |
| 2181 | IRAS,Infrared Astronomical Satellite |
| 2182 | IRB,International Rugby Board |
| 2183 | IRBM,Intermediate Range Ballistic Missile |
| 2184 | IRC,International Red Cross,International Reply Coupon |
| 2185 | IREA,Intermountain Rural Electric Association |
| 2186 | IRINN,Islamic Republic of Iran News Network |
| 2187 | IRN,Iran (ISO 3166 trigram) |
| 2188 | IRO,International Refugee Organisation |
| 2189 | IRQ,Iraq (ISO 3166 trigram) |
| 2190 | IRR,Iranian rial (ISO 4217 currency code) |
| 2191 | IRS,U.S. Internal Revenue Service |
| 2192 | IRST,Infra-red Search and Track |
| 2193 | IS,Iceland (ISO 3166 digram),Israel (FIPS 10-4 country code) |
| 2194 | is,Icelandic language (ISO 639-1 code) |
| 2195 | ISA,Individual Savings Account,Industry Standard Architecture,Instruction Set Architecture,International Seabed Authority |
| 2196 | ISAAA,International Service for the Acquisition of Agri-biotech Applications |
| 2197 | ISAF,International Sailing Federation,International Security Assistance Force |
| 2198 | ISAR,Inverse SAR (Synthetic Aperture Radar) |
| 2199 | ISB,Intermediate Staging Base |
| 2200 | ISBN,International Standard Book Number (ISO 2108) |
| 2201 | ISCCP,International Satellite Cloud Climatology Project |
| 2202 | ISCII,Indian Standard Code for Information Interchange |
| 2203 | ISDN,Integrated Services Digital Network |
| 2204 | ISEF,Intel International Science and Engineering Fair |
| 2205 | ISEN,Internet Search Environment Number |
| 2206 | ISF,Internal Security Force |
| 2207 | 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 |
| 2208 | ISIL,Islamic State of Iraq and the Levant |
| 2209 | ISK,Icelandic krona (ISO 4217 currency code) |
| 2210 | ISL,Iceland (ISO 3166 trigram) |
| 2211 | isl,Icelandic language (ISO 639-2 code) |
| 2212 | ISLN,International Standard Lawyer Number (used initially by LexisNexis Martindale-Hubbell) |
| 2213 | ISM,Industrial,scientific or medical,Interstellar medium |
| 2214 | ISMB,International Society of Matrix Biologists |
| 2215 | ISMC,Intelligent Sounding Meaningless Conversation |
| 2216 | ISOGP,Indian Society of Orthodontics for General Practitioners [2] |
| 2217 | ISP,International Standardized Profile,Internet Service Provider,Information Systems Professional |
| 2218 | ISPE,(a/i) International Society for Pharmacoepidemiology |
| 2219 | ISR,Intelligence,Surveillance and Reconnaissance,Israel (ISO 3166 trigram) |
| 2220 | ISRO,Indian Space Research Organisation |
| 2221 | ISS,International Shorebird Survey (North America),International Space Station |
| 2222 | ISSCR,International Society for Stem Cell Research |
| 2223 | ISSN,International standard serial number (ISO 3297) |
| 2224 | IST,Information System Technology,UCF Institute for Simulation and Training |
| 2225 | ISTAR,Intelligence,Surveillance,Target Acquisition,and Reconnaissance |
| 2226 | ISTC,Institute of Scientific and Technical Communications (UK) |
| 2227 | ISTS,Intel Science Talent Search |
| 2228 | ISU,Integrated Sight Unit,International Skating Union,IT[edit] |
| 2229 | IT,InferoTemporal (neurophysiology),Information Technology,Italy (FIPS 10-4 country code; ISO 3166 digram) |
| 2230 | it,Italian language (ISO 639-1 code) |
| 2231 | ita,Italian language (ISO 639-2 code) |
| 2232 | ITA,Italy (ISO 3166 trigram) |
| 2233 | ITAG,Inertial Terrain-Aided Guidance |
| 2234 | ITALY,I'll Truly Always Love You |
| 2235 | ITAS,Improved Target Acquisition Sight |
| 2236 | ITC,InferoTemporal Cortex (neurophysiology) |
| 2237 | ITCZ,Intertropical Convergence Zone |
| 2238 | ITEC,Information Technology Exposition & Conference |
| 2239 | ITEMS,Interactive Tactical Environment Management System |
| 2240 | ITER,International Thermonuclear Experimental Reactor |
| 2241 | ITF,International Tennis Federation |
| 2242 | ITK,In The Know |
| 2243 | ITN,Independent Television News (British) |
| 2244 | ITS,Incompatible Time-sharing System,Individual Training Standards |
| 2245 | ITT,International Telephone and Telegraph (U.S.) |
| 2246 | ITTO,International Tropical Timber Organization |
| 2247 | ITU,Intent-to-Use,International Telecommunication Union (International Telegraph Union 1865-1932),IU[edit] |
| 2248 | iu, Inuktitut language (ISO 639-1 code) |
| 2249 | IUCN,International Union for the Conservation of Nature and Natural Resources (World Conservation Union) |
| 2250 | IUSS,Integrated Undersea Surveillance System,Integrated Unit Simulation System,International Union of Soil Sciences |
| 2251 | IV,Côte d'Ivoire (FIPS 10-4 country code; from Ivory Coast),Four (in Roman numerals),IntraVenous (as in intravenous drip or intravenous therapy) |
| 2252 | IVD,Internet Video Device,intra vas device |
| 2253 | Iveco,Industrial Vehicles Corporation |
| 2254 | IVF,In Vitro Fertilisation |
| 2255 | IVI,Interchangeable Virtual Instrument |
| 2256 | IVIS,Inter-Vehicle Information System |
| 2257 | IVL,Inter-Visibility Line |
| 2258 | IVM,In Vitro [Oocyte] Maturation |
| 2259 | IVO,In Vicinity Of |
| 2260 | IW,Information Warfare |
| 2261 | IWARS,Infantry Warrior Simulation |
| 2262 | IWC,International Whaling Commission |
| 2263 | IWW,Industrial Workers of the World |
| 2264 | IX,Nine (in Roman numerals) |
| 2265 | IXT,IntraText digital library; IntraText lexical hypertext |
| 2266 | IY,Saudi-Iraqi neutral zone (FIPS 10-4 territory code; obsolete 1993) |
| 2267 | IZ,Iraq (FIPS 10-4 country code) |
| 2268 | J,Joule |
| 2269 | J1,Joint [Manpower &] Personnel Directorate |
| 2270 | J2,Joint Intelligence Directorate |
| 2271 | J2EE,Java 2 Platform,Enterprise ion |
| 2272 | J2ME,Java 2 Platform,Micro ion |
| 2273 | J2SE,Java 2 Platform,Standard ion |
| 2274 | J3,Joint Operations Directorate |
| 2275 | J4,Joint Logistics Directorate |
| 2276 | J5,Joint Strategic Plans & Policy Directorate |
| 2277 | J6,Joint Information Technology Directorate (Command,Control,Communications & Computer Systems) |
| 2278 | J7,Joint Operational Plans & Interoperability Directorate |
| 2279 | J8,Joint Force Structure,Resources,& Assessment Directorate |
| 2280 | JA,Japan (FIPS 10-4 country code) |
| 2281 | ja,Japanese language (ISO 639-1 code) |
| 2282 | JAFT,Just A Field Test |
| 2283 | JAL,Japan Airlines |
| 2284 | JALLC,Joint Analysis and Lessons Learned Centre (NATO) |
| 2285 | JAM,Jamaica (ISO 3166 trigram) |
| 2286 | JAMA,Journal of the American Medical Association |
| 2287 | JANET,Joint Academic Network |
| 2288 | 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) |
| 2289 | JATO,Jet-Assisted Take-Off |
| 2290 | jav,Javanese language (ISO 639-2 code) |
| 2291 | JB,Jail Bait |
| 2292 | JB,Junior Branch |
| 2293 | JBFSA,Joint Blue Force Situational Awareness |
| 2294 | JCDB,Joint Common Data Base |
| 2295 | JCDS,Joint Chiefs of the Defence Staff |
| 2296 | JCIDS,Joint Capabilities Integration and Development System |
| 2297 | JCL,Job Control Language |
| 2298 | JCP,Java Community Process |
| 2299 | JCPM,Java Child Process Manager,Jesus Christ Prison Ministry |
| 2300 | JCS,Joint Chiefs of Staff |
| 2301 | JCW,Juggalo Championship Wrestling |
| 2302 | JDBC,Java Data Base Connectivity |
| 2303 | JDCC,UK Joint Doctrine and Concepts Centre,now the Development,Concepts,and Doctrine Centre,DCDC |
| 2304 | JDEM,Joint Dark Energy Mission |
| 2305 | JDK,Java Development Kit |
| 2306 | JDL,Jewish Defense League |
| 2307 | JDM,Japanese domestic market,referring specifically to automobiles and parts,Java Data Mining,Joint design manufacturing,JE[edit] |
| 2308 | JE,Jersey (FIPS 10-4 territory code) |
| 2309 | JEB,James Ewell Brown (Stuart),John Ellis Bush |
| 2310 | JEDP,Jahwist,Elohist,Deuteronomist,Priestly (according to the documentary hypothesis,the sources of the Torah) |
| 2311 | JEE,Java Platform,Enterprise ion |
| 2312 | JEFX,Joint Expeditionary Force eXperiment |
| 2313 | JEPD,Jahwist,Elohist,Priestly,Deuteronomist,Jointly Exhaustive,Pairwise Disjoint |
| 2314 | JET,Joint European Torus |
| 2315 | JEZ,Joint Engagement Zone |
| 2316 | JFACC,Joint Force Air Component Commander |
| 2317 | JFACTSU,U.S. Joint Forward Air Control Training and Standards Unit |
| 2318 | JFC,Joint Force Commander |
| 2319 | JFK,John Fitzgerald Kennedy or the airport named after him. |
| 2320 | JFLCC,Joint Force Land Component Commander |
| 2321 | JFMCC,Joint Force Maritime Component Commander |
| 2322 | JFO,Journal of Field Ornithology |
| 2323 | JFSOCC,Joint Force Special Operations Component Commander |
| 2324 | JFTX,Joint Field Training Exercise |
| 2325 | JH,Japan Highway Public Corporation |
| 2326 | JH,Jharkhand (Indian state code) |
| 2327 | JI,Joint Implementation |
| 2328 | JIB,Joint Information Bureau |
| 2329 | JIC,Joint Intelligence Centre |
| 2330 | JINI,Java Intelligent Network Infrastructure |
| 2331 | JITC,Joint Interoperability Test Command |
| 2332 | JIVE,Joint Institute for VLBI (Very Long Baseline Interferometry) in Europe |
| 2333 | JJAP,Japanese Journal of Applied Physics |
| 2334 | JK,Jedi Knight,Just Kidding,Spanair (IATA airline designator),Jammu & Kashmir (Indian state code) |
| 2335 | JL,Japan Airlines (IATA airline designator) |
| 2336 | JLA,Justice League of America |
| 2337 | JM,Jamaica (FIPS 10-4 country code; ISO 3166 digram) |
| 2338 | JMD,Jamaican dollar (ISO 4217 currency code) |
| 2339 | JMS,Java Message Service |
| 2340 | JN,Jan Mayen Island (FIPS 10-4 territory code) |
| 2341 | JNI,Java Native Interface |
| 2342 | JNLP,Java Network Launch Protocol |
| 2343 | JO,Jordan (FIPS 10-4 country code; ISO 3166 digram) |
| 2344 | JOA,(a/i) Joint Operations Area |
| 2345 | JOD,Jordanian dinar (ISO 4217 currency code) |
| 2346 | JOPES,Joint Operations Planning and Execution System |
| 2347 | JOR,Jordan (ISO 3166 trigram) |
| 2348 | JOTS,Joint Operations Tactical System |
| 2349 | JP,Japan (ISO 3166 digram),Justice of the Peace |
| 2350 | JPL,Jet Propulsion Laboratory |
| 2351 | JPN,Japan (ISO 3166 trigram) |
| 2352 | jpn,Japanese language (ISO 639-2 code) |
| 2353 | JPOW,Joint Project Optic Windmill |
| 2354 | JPY,Japanese yen (ISO 4217 currency code) |
| 2355 | JQ,Jetstar Airways (IATA airline designator),Johnny Quick,Johnston Atoll (FIPS 10-4 territory code),Jonny Quest,Joshua Quagmire |
| 2356 | JRA,Japanese Red Army,Joint Rear Area |
| 2357 | JRDF,Joint Rapid Deployment Forces |
| 2358 | JRE,Java Runtime Environment |
| 2359 | JREF,James Randi Educational Foundation |
| 2360 | JROC,Joint Requirements Oversight Council |
| 2361 | JROCM,JROC Memorandum |
| 2362 | JRRF,Joint Rapid Reaction Force |
| 2363 | JRSAI,Journal of the Royal Society of Antiquaries of Ireland |
| 2364 | JSAP,Japan Society of Applied Physics |
| 2365 | JSCSC,Joint Services Command and Staff College |
| 2366 | JSEAD,Joint Suppression of Enemy Air Defence (see SEAD) |
| 2367 | JSF,Joint Strike Fighter |
| 2368 | JSIMS,Joint Simulation System |
| 2369 | JSOA,Joint Special Operations Area |
| 2370 | JSOTF,Joint Special Operations Task Force |
| 2371 | JSP,JavaServer Page |
| 2372 | JSP,Joint Services Publication |
| 2373 | JSR,Java Specification Request |
| 2374 | JSS,Joint Support Ship Project |
| 2375 | JT,Johnston Atoll (ISO 3166 digram; obsolete 1986),Junior Technician (RAF) |
| 2376 | JTC,Joint Training Confederation |
| 2377 | JTF,Joint Task Force |
| 2378 | JTFEX,Joint Task Force Exercise |
| 2379 | JTLS,Joint Theater Level Simulation |
| 2380 | JTMD,Joint Theatre Missile Defence |
| 2381 | JTN,Johnston Atoll (ISO 3166 trigram; obsolete 1986) |
| 2382 | JU,Juan de Nova Island (FIPS 10-4 territory code) |
| 2383 | JUGFET,JUnction Gate Field-Effect Transistor |
| 2384 | JUICE,JUpiter ICy Moon Explorer |
| 2385 | JUO,Joint Urban Operations |
| 2386 | jv,Javanese language (ISO 639-1 code) |
| 2387 | JV,Joint Venture,Junior Varsity |
| 2388 | JVM,Java Virtual Machine |
| 2389 | JW,Jehovah's Witnesses |
| 2390 | JWARS,Joint Warfare System (simulation) |
| 2391 | JWP,Joint Warfare Publication |
| 2392 | JWST,James Webb Space Telescope |
| 2393 | JY,Japanese Yen |
| 2394 | JZ,Joint Zone |
| 2395 | K,Kelvin,Potassium (Latin Kalium),Tanker (aircraft designation code) |
| 2396 | k,Kilo- |
| 2397 | K,picokelvin |
| 2398 | K9,Canine Police Unit |
| 2399 | ka,Georgian language (ISO 639-1 code) |
| 2400 | Ka,Kamov Design Bureau |
| 2401 | kA,Kiloampere |
| 2402 | KA,Knowledge Acquisition,Karnataka (Indian state code) |
| 2403 | KAF,Kandahar Air Field |
| 2404 | kal,Kalaallisut language (ISO 639-2 code) |
| 2405 | kan,Kannada language (ISO 639-2 code) |
| 2406 | KARNAC,Knowledge Aided Retrieval in Activity Context |
| 2407 | KARR,Knight Automated Roving Robot (Knight Rider character) |
| 2408 | kas,Kashmiri language (ISO 639-2 code) |
| 2409 | kat,Georgian language (ISO 639-2 code) |
| 2410 | KATUSA,Korean Augmentation To United States Army |
| 2411 | kau,Kanuri language (ISO 639-2 code) |
| 2412 | kaz,Kazakh language (ISO 639-2 code) |
| 2413 | KAZ,Kazakhstan (ISO 3166 trigram) |
| 2414 | KBE,Knight Commander of the Order of the British Empire |
| 2415 | KBO,Kuiper Belt Object |
| 2416 | KBVB,Koninklijke Belgische Voetbalbond (Dutch for Royal Belgian Football Association) |
| 2417 | kC,Kilocoulomb |
| 2418 | KCL,King's College London |
| 2419 | KCS,Kansas City Southern Railway (AAR reporting mark) |
| 2420 | KD,Kawasaki Disease,Kraft Dinner |
| 2421 | KE,Kenya (FIPS 10-4 country code; ISO 3166 digram),Kinetic Energy,Knowledge Engineering |
| 2422 | KEDO,Korean Peninsula Energy Development Organization |
| 2423 | KEN,Kenya (ISO 3166 trigram) |
| 2424 | KERA,Kentucky Education Reform Act (of 1990) |
| 2425 | kerma,Kinetic Energy Released in MAterial / in MAtter / per unit MAss |
| 2426 | KES,Kenyan shilling (ISO 4217 currency code),Killer Elite Squad (Japanese professional wrestling stable) |
| 2427 | KESR,Kent and East Sussex Railway. |
| 2428 | KET,Kentucky Educational Television,Key English Test,KF[edit] |
| 2429 | kF,Kilofarad |
| 2430 | KFC,Kentucky Fried Chicken |
| 2431 | KFOR,UN Kosovo Force |
| 2432 | KFUPM,King Fahd University of Petroleum & Minerals |
| 2433 | kg,Kilogram,Kongo language (ISO 639-1 code) |
| 2434 | KG,Kyrgyzstan (FIPS 10-4 country code; ISO 3166 digram) |
| 2435 | KGO,Knight of the Guelphic Order of Hanover |
| 2436 | KGS,Kyrgyz som (ISO 4217 currency code) |
| 2437 | KGZ,Kyrgyzstan (ISO 3166 trigram) |
| 2438 | KH,Cambodia (ISO 3166 digram) |
| 2439 | kH,Kilohenry |
| 2440 | KHL,Kontinental Hockey League |
| 2441 | KHM,Cambodia (ISO 3166 trigram) |
| 2442 | khm,Khmer language (ISO 639-2 code) |
| 2443 | KHR,Cambodian riel (ISO 4217 currency code) |
| 2444 | KHz,Kilohertz |
| 2445 | ki,Gikuyu language (ISO 639-1 code) |
| 2446 | Ki,Kibi |
| 2447 | KI,Kiribati (ISO 3166 digram) |
| 2448 | KIA,Killed In Action |
| 2449 | KIDS,Knowledge-based Integrated Design System |
| 2450 | kik,Gikuyu language (ISO 639-2 code),common typo for LOL |
| 2451 | kin,Kinyarwanda language (ISO 639-2 code) |
| 2452 | KIR,Kiribati (ISO 3166 trigram) |
| 2453 | kir,Kyrgyz language (ISO 639-2 code) |
| 2454 | KISS,Keep It Simple,Stupid / Keep It Short and Simple,Korean Intelligence Support System |
| 2455 | KIT,Keep In Touch |
| 2456 | KITECH,Korean Institute of Industrial Technology |
| 2457 | KITT,Knight Industries Two Thousand,Knight Industries Three Thousand |
| 2458 | kJ,Kilojoule |
| 2459 | kj,Kuanyama language (ISO 639-1 code) |
| 2460 | kk,Kazakh language (ISO 639-1 code) |
| 2461 | kK,Kilokelvin |
| 2462 | KKK,Ku Klux Klan |
| 2463 | kl,Kalaallisut language (ISO 639-1 code) |
| 2464 | kL,Kilolitre |
| 2465 | KL,Kuala Lumpur,Kerala (Indian state code) |
| 2466 | KLENOT,KLEť Observatory Near Earth and Other unusual objects observations Team and Telescope |
| 2467 | KLOC,Kilo Lines Of Code |
| 2468 | KM,Comoros,Knowledge Management |
| 2469 | km,Khmer language (ISO 639-1 code),Kilometre |
| 2470 | KMF,Comoro franc (ISO 4217 currency code) |
| 2471 | KMR,Kwajalein Missile Range |
| 2472 | KN,Democratic People's Republic of Korea (FIPS 10-4 country code),Saint Kitts and Nevis (ISO 3166 digram) |
| 2473 | kn,Kannada language (ISO 639-1 code) |
| 2474 | kN,Kilonewton |
| 2475 | KNA,Saint Kitts and Nevis (ISO 3166 trigram) |
| 2476 | KNVB,Koninklijke Nederlandse Voetbal Bond (Dutch for Royal Dutch Football Association) |
| 2477 | KO,Knocked Out |
| 2478 | ko,Korean language (ISO 639-1 code) |
| 2479 | kom,Komi language (ISO 639-2 code) |
| 2480 | kon,Kongo language (ISO 639-2 code) |
| 2481 | kor,Korean language (ISO 639-2 code) |
| 2482 | KOR,Republic of Korea (ISO 3166 trigram) |
| 2483 | KP,Kim Possible |
| 2484 | KPMG,Klynveld,Peat,Marwick,Goerdeler |
| 2485 | KPNO,Kitt Peak National Observatory |
| 2486 | KPW,North Korean won (ISO 4217 currency code) |
| 2487 | KQ,Kenya Airways (IATA airline designator),Kingman Reef (FIPS 10-4 territory code) |
| 2488 | kr,Kanuri language (ISO 639-1 code) |
| 2489 | KR,Kiribati (FIPS 10-4 country code),Republic of Korea (ISO 3166 digram) |
| 2490 | Kr,Krypton |
| 2491 | KRW,South Korean won (ISO 4217 currency code) |
| 2492 | KS,Kansas (postal symbol),Republic of Korea (FIPS 10-4 country code) |
| 2493 | ks,Kashmiri language (ISO 639-1 code),Kilosecond |
| 2494 | kS,Kilosiemens |
| 2495 | KSC,Kennedy Space Center |
| 2496 | KSI,Killed or Seriously Injured |
| 2497 | KSM,Korean Service Medal,Khalid Sheikh Mohammed |
| 2498 | KSU,Kansas State University |
| 2499 | KT,Christmas Island (FIPS 10-4 territory code),Knight of the Order of the Thistle,Knights Templar |
| 2500 | kT,Kilotesla |
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