AAA- administration, authorization, and authentication,American Automobile Association ("Triple-A"),anti-aircraft artillery,Amateur Athletic Association (of England),Asistencia Asesoría y Administración (Spanish, "Assistance, Consulting, and Administration"—Mexican professional wrestling promotion)
AAAI, Association for the Advancement of Artificial Intelligence, formerly American Association for Artificial Intelligence
AAAS, American Association for the Advancement of Science
AAAV, Advanced Amphibious Assault Vehicle
AAC- American Athletic Conference,Army Air Corps (British Army)
ABB, ASEA Brown Boveri (Swiss-Swedish multinational company)
ABBA, Agnetha, Benny, Björn, Anni-Frid (Swedish pop group)
ABC- abstinence, be faithful, condoms,Active Body Control,airway, breathing, circulation (see CPR),Alcoholic Beverage Commission,alien big cat,always be careful,American Bird Conservancy,American-born Chinese,American Broadcasting Company,anti-lock brake controller,Associated British Corporation,Atanasoff-Berry Computer,Atlantic Baptist College,atomic, biological, chemical (see NBC),Australian Broadcasting Corporation
ABCA- American, British and Canadian Armies (originally),Army Bureau of Current Affairs
ABCS, (U.S.) Army Battle Command System
ABET, Accreditation Board for Engineering and Technology
ABFIST, Advanced Bradley Full Crew Interactive Skills Trainer
ABGI, Addington-Barker Group International
ABIN, Agência Brasileira de Inteligência (Brazilian Intelligence Agency)
abk, Abkhaz language (ISO 639-2 code)
ABL, American Basketball League
ABLE, AirBorne Law Enforcement (police air support unit)
ABN, Australian Business Number (a number issued by the Australian government as registration of a business and used for taxation purposes)
ABPI, Association of the British Pharmaceutical Industry
ABRSM, Associated Board of the Royal Schools of Music
ABS- acrylonitrile butadiene styrene,anti-lock braking system
ABSA, Amalgamated Banks of South Africa ("ab-sa")
ABSTRIPS, abstraction-based STRIPS
ABV, Alcohol by volume
ABW, Aruba (ISO 3166 trigram)
aC, Attocoulomb
Ac, Actinium
AC- Adriamycin-Cyclophosphamide (chemotherapy),Air Conditioning,Aircraftman,Alternating Current,Altocumulus,ante Christum (Latin, "before Christ"; see BC),ante cibum (Latin, "before meals"), Antigua and Barbuda (FIPS 10-4 country code), Associazione Calcio (Italian, "football (soccer) club"),A/C, Air Conditioned/Conditioning,Aircraft
AC1,Aircraftman 1st Class
AC2,Aircraftman 2nd Class
ACA-Affordable Care Act, shorthand for the Patient Protection and Affordable Care Act, commonly called "Obamacare", Airspace Control Authority,Airspace Co-ordination Area,A Current Affair
ACARS, Aircraft Communications Addressing and Reporting System
ACAS- Aboriginal Children's Advancement Society,Advisory, Conciliation and Arbitration Service
ACB, Asociación de Clubes de Baloncesto (Spanish for "Association of Basketball Clubs")
ACC- U.S. Air Combat Command,Air Component Commander,Alpine Club of Canada,Altocumulus castellanus,Area Control Center,Atlantic Coast Conference,Automatic climate control
ACCA- The Association of Chartered Certified Accountants,Automatic Cloud Cover Assessment
ACCAC, Awdurdod Cymwysterau, Cwricwlwm ac Asesu Cymru (Qualifications, Curriculum and Assessment Authority for Wales)
ACCD,American Coalition of Citizens with Disabilities
ACCS, Air Communications and Control Squadron
ACDA, Arms Control & Disarmament Agency
ACDC- Alternating Current Direct Current,the name of an Australian rock music band,a term for a bisexual person,A/Cdre,Air Commodore
ACDT- Apple Certified Desktop Technician, Australian Central Daylight Time
ACES- Aerolíneas Centrales de Colombia (Spanish, "Central Colombian Airlines"),Auxiliary Campus Enterprises and Services of Alfred State College
ACF- Administration for Children and Families,American Car and Foundry,American Culinary Federation
ACHT, Average Call Hold Time
ACID, Atomicity, Consistency, Isolation, and Durability (in databases)
ACINT, Acoustic Intelligence
ACK, Acknowledge (telecommunications; cf. NAK)
ACL- Access Control List,Anterior cruciate ligament; the initialism can also refer to an injury to this ligament.,Atlantic Coast Line Railroad
ACLJ, American Center for Law and Justice
ACLOS, Automatic CLOS (missile control system)
ACLS, American Council of Learned Societies
ACLU- American Civil Liberties Union,American Communist Lawyers Union (pejorative slang for the above)
ACM,many, including Association for Computing Machinery; see entry
ACMC, (U.S.) Assistant Commandant of the Marine Corps
ACN- Airborne Communications Node,Australian Company Number (number issued by the Australian government as registration of a limited liability company)
ACNA, Anglican Church in North America
ACO, Airspace Control Order
ACOBA, Advisory Committee on Business Appointments
ACOG, American College of Obstetricians and Gynecologists
ACOM, (U.S.) Atlantic Command
ACORN, Association of Community Organizations for Reform Now
ACP- African, Caribbean and Pacific Group of States,Air Control Point
ACR, Advanced Concepts and Requirements
ACRI, African Crisis Initiative
ACRT, Advanced Concepts Research Tool simulator
ACS- Affiliated Computer Services (NYSE ACS),Alaska Communications Service,American Cancer Society,American Chemical Society,Association of Caribbean States,Australian Computer Society
ACSC, Army Command and Staff College (various nations)
ACST, Australian Central Standard Time
ACST, American Cooperative School of Tunis
ACT- Adaptive Control of Thought (cognitive model),American College Test (ing Program),Australian Capital Territory (also postal symbol),ACT UP, AIDS Coalition to Unleash Power
ACTD, Advanced Concept Technology Demonstration
ACTF- (U.S.) Army Constructive Training Federation,Australian Children's Television Foundation,ACT-R, ACT-Rational (cognitive model),ACT-R/PM, ACT-R/Perceptual-Motor (cognitive model)
ACTU, Australian Council of Trade Unions
ACU, American Conservative Union
ACUF- BGN Advisory Committee on Undersea Features, American Conservative Union Foundation
ACV, Armoured Combat Vehicle
AD, Air Defence, Andorra (ISO 3166 digram), Anno Domini (Latin, "In the year of our Lord")
ADA, Air Defence Artillery,American Dental Association,Assistant District Attorney,Americans with Disabilities Act (see also the similar but non-acronymic Ada programming language)
ADAC,(a/i) Allgemeiner Deutscher Automobil-Club (German, "General German Automobile Club")
ADAGE, Air Defense Air to Ground Engagement (simulation)
ADAP, AIDS Drug Assistance Program
ADAS,(a/i) Asiago-DLR Asteroid Survey
ADAT, Alesis Digital Audio Tape (recording format)
ADatP, Automated Data Processing
ADATS, Agricultural Development and Training Society,Air Defence Anti-Tank System,Australian Defence Air Traffic System
ADB, Asian Development Bank
ADC, Aide De Camp,U.S. Air Defense Command (1946-1992),Apple Display Connector,Program Against Digital Counterfeiting of Currency
ADCTS, Advanced Distributed Combat Training System
ADD, Analog Digital Digital (CD quality),Attention-Deficit Disorder,Administration on Developmental Disabilities
ADDIE, Analyze Design Develop Implement and Evaluate
ADDNS, Advanced Deployable Day/Night Simulation
ADF, Australian Defence Force,African Development Foundation
ADGB,Air Defence of Great Britain
ADHD, Attention-Deficit Hyperactivity Disorder
ADHS, Attention-Deficit Hyperactivity Syndrome
ADI, Acceptable/Allowable Daily Intake
ADIZ,(a/i) Air Defence Identification Zone
ADL, Anti-Defamation League
ADM, Administrative,,Admiral, and the U.S. Public Health Service Commissioned Corps,Archer Daniels Midland,Assistant Deputy Minister
ADOA,(a/i) Air Defence Operations Area
ADP, Adenosine DiPhosphate,Army Doctrine Publication (UK, Canada, Australia),Automatic/Automated Data Processing
AE- Armed Forces Africa/Canada/Europe/Middle East (postal symbol),United Arab Emirates (ISO 3166 digram; FIPS 10-4 country code), Artix Entertainment,American Eagle,A&E,(a/i) Arts & Entertainment Network, the original name for the U.S. TV channel now known as A&E Network
AED, United Arab Emirates dirham (ISO 4217 currency code)
AEDT, Australian Eastern Daylight Time
AEF, American Expeditionary Force
AEGIS, Airborne Early warning Ground environment Interface Segment (fake etymology)
AESR, Aeronautical Equipment Service Record
AEST, Australian Eastern Standard Time
aet, After extra time (Football)
AEW, Airborne Early Warning,Airborne Electronic Warfare
af, Afrikaans language (ISO 639-1 code)
aF, Attofarad
AF- Afghanistan (FIPS 10-4 country code; ISO 3166 digram), Air Force,As f*ck
AFA- U.S. Air Force Academy,Asociación del Fútbol Argentino (Spanish, "Argentine Football Association")
AFAIC, As Far As I'm Concerned
AFAICT, As Far As I Can Tell
AFAIK, As Far As I Know
AFAIR, As Far As I Remember/Recall
AFAM-(i/a) Associazione Friulana di Astronomia e Meteorologia (Italian, "Friuli Association of Astronomy and Meteorology"), Department of African and Afro-American Studies, University of North Carolina at Chapel Hill — notable for its links to the school's academic-athletic scandal in the 2010s
AFATDS, Advanced Field Artillery Tactical Data System
AFC- American Football Conference,Asian Football Confederation
AFCEA, Armed Forces Communications and Electronics Association
AFDB, African Development Bank
AFES, Automatic Fire Extinguishing System
AFG, Afghanistan (ISO 3166 trigram)
AFI- French Territory of the Afars and Issas (ISO 3166 trigram; obsolete since 1977), "Agencia Federal de Investigaciónes" (México)
AFIS- Automated Fingerprint Identification System,American Forces Information Service
AFIST, Abrams Full Crew Interactive Skills Trainer
AFJ, April Fool's Joke
AFK, Away From Keyboard (Internet chat abbreviation)
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
AFLAC, American Family Life Assurance Company of Columbus
AFM, Army Field Manual (UK; the U.S. more frequently uses just FM),Atomic Force Microscope,Aviation Fleet Maintenance
AFN, Afghani (ISO 4217 currency code)
AFO, Association of Field Ornithologists
AFOSR, U.S. Air Force Office of Scientific Research
AFP- Agence France-Presse (French, "French Press Agency"),Australian Federal Police
AFQT, Armed Forces Qualification Test
afr, Afrikaans language (ISO 639-2 code)
AFRC, Air Force Reserve Command
AFRL, Air Force Research Laboratory
AFROTC, Air Force Reserve Officer Training Corps
AFRRI,(i, U.S.) Armed Forces Radiobiology Research Institute
AFRTS, Armed Forces Radio and Television Service
AFS- Active Front Steering,Air Facility Sub-System,Amniotic Fluid-derived Stem cell,AFS&A or AFSA, U.S. Air Force Studies and Analysis
AFSC- U.S. Air Force Staff College (obsolete; replaced with JFSC),U.S. Air Force Systems Command
AFSCN, U.S. Air Force Satellite Control Network
AFSPC, Air Force Space Command
AFT,American Farmland Trust
AFV, armoured fighting vehicle
AFWA- Air Force Weather Agency,Association of Fish and Wildlife Agencies,AG[edit]
ag, Attogram
Ag, Silver (Latin argentum)
AG- air gunner,Aktiengesellschaft (German, "incorporated"), Algeria (FIPS 10-4 country code),Antigua and Barbuda (ISO 3166 digram),Assemblies of God
AGA-(a/i) AB Gas-accumulator ("ah-gah", Swedish company),Advanced Graphics Architecture
AGARD, Advisory Group for Aerospace Research and Development
AGARDograph, Advanced Guidance for Alliance Research and Development publication
AGASA, Akeno Giant Air Shower Array (cosmic ray detector)
AGB, Internal Nintendo initialism (Advanced Game Boy) for Game Boy Advance
AGC- Apollo Guidance Computer,Automatic Gain Control
AGC, Adjutant General's Corps (British Army)
AGDC, Australian Game Developers' Conference
AGI, Auxiliary Group Intelligence
AGL, Above Ground Level
AGM, Annual General Meeting
AGN, Active Galactic Nucleus
AGO, Angola (ISO 3166 trigram)
AGP, Accelerated Graphics Port
AGRICOLA, Agriculture Online Access
AGS, Alaska Ground Station (LandSat)
AGTS, Advanced Gunnery Training System
AGU, American Geophysical Union
AGW, Autonomous Guided Weapon
aH, Attohenry
Ah, Ampere-hour
AH, Attack Helicopter
AHA, American Heart Association
AHCPR, Agency for Health Care Policy and Research (obsolete; replaced with AHRQ)
AHEC, Australian Health Ethics Committee
AHPCRC, Army High Performance Computing Research Center
AHQ,Air Headquarters
AHRQ, Agency for Healthcare Research and Quality
AHS, American Housing Survey
AI- Air Interdiction,Amnesty International,Artificial Insemination,Artificial Intelligence, Anguilla (ISO 3166 digram)
AIA- Aerospace Industries Association,American Institute of Architects, Anguilla (ISO 3166 trigram)
AIAA, American Institute of Aeronautics and Astronautics
AIM,many, including AOL Instant Messenger, Australian Institute of Management; see entry
AIMP, Aurora Incremental Modernization Project
AIPAC, American Israel Public Affairs Committee
AIR, Aircraft Inventory Record
AIRFA, American Indian Religious Freedom Act
AIRS,(a/i) Aerometric Information Retrieval System (obsolete; replaced with AFS)
AIS- Australian Institute of Sport,Automatic Identification System
AISB, (British Society for the Study of) Artificial Intelligence and the Simulation of Behaviour
aJ, Attojoule
AJ, Azerbaijan (FIPS 10-4 country code)
Ajax, Asynchronous JavaScript And XML
AJD, Astronomical Julian day
AJP, Allied Joint Publication
AJPW, All Japan Pro Wrestling
ak, Akan languages (ISO 639-1 code)
aK, Attokelvin
AK, Alaska (postal symbol)
aka, Akan languages (ISO 639-2 code)
AKA, Above knee amputation (orthopaedic usage)
AKDT, Alaska Standard Daylight Saving Time (UTC−8 hours)
AKST, Alaska Standard Time (UTC−9 hours)
AKP, Adalet ve Kalkınma Partisi (Turkish, "Justice and Development Party")
aL, Attolitre
Al, Aluminium
AL- Alabama (postal symbol),Albania (FIPS 10-4 country code; ISO 3166 digram), Anno Lucis (Latin, "Year of Light", in Masonic tradition, most often seen on plaques bearing the founding dates of buildings, in years AD and years AL)
ALA, Åland Islands (ISO 3166 trigram)
ALAP, As Long/Late As Possible
ALARM, Air-Launched Anti-Radar Missile
ALB, Albania (ISO 3166 trigram)
ALD, Accounting Line Designator (nuclear weapon targeting)
ALERT, Advanced Linked Extended Reconnaissance and Targeting,Attack and Launch Early Reporting to Theatre
ALF- Africa Leadership Forum,Alien Life Form (cf. ALF (TV series)),Animal Liberation Front
ALG, Algeria (IOC and FIFA trigram, but not ISO 3166)
ALGOL, ALGOrithmic Language
ALL, Albanian lek (ISO 4217 currency code)
ALOA, Associated Locksmiths of America, Inc.
ALOC- Air Lines Of Communication, Average Length of Calls
ALPA, Air Line Pilots Association
ALS, Amyotrophic Lateral Sclerosis,Automatic Landing System
ALSHS, Abraham Low Self-Help Systems
ALSP, Aggregate Level Simulation Protocol
ALTE, Association of Language Testers in Europe
ALTACS, Automated decision Logic Tactical Air Combat Simulation
am- Amharic language (ISO 639-1 code),Attometre
Am, Americium
AM-many, including Amplitude Modulation and Ante Meridiem; see entry, Armenia (FIPS 10-4 country code; ISO 3166 digram)
AM1,Airman 1st class
AMA- American Medical Association,Australian Medical Association
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
AMCB, U.S. Army/Marine Corps Board
AMD- Advanced Micro Devices,Age-related Macular Degeneration, Armenian dram (ISO 4217 currency code)
AMF, Afghan Military Force
AMFOM, Advanced Missile Fly Out Model ("am-fomm")
AMFR- Age-specific Marital Fertility Rate,Amplitude Modulation Following Response
AMFRS- Advanced Multi-Function Radio Frequency System,Automatic Multisensor Feature-based Recognition System
amh, Amharic language (ISO 639-2 code)
AML, Acute Myeloid Leukaemia
AMLCD, Active Matrix Liquid Crystal Display
AMLO- Andrés Manuel López Obrador (Mexican politician),Anti-Money Laundering Office (Thailand government agency)
AMRDEC, U.S. Aviation & Missile Research, Development, & Engineering Center
AMS- Agriculture Marketing Service,American Mathematical Society
AMSAA,(i/a) U.S. Army Materiel Systems Analysis Activity
AMSO,(i/a) U.S. Army Model and Simulation Office
AMSU,Advanced Microwave Sounding Unit
AMTE, UK Admiralty Marine Technology Establishment (1977-1984)
an, Aragonese language (ISO 639-1 code)
aN, Attonewton
AN- Andorra (FIPS 10-4 country code),Netherlands Antilles (ISO 3166 digram)
ANA- Administration for Native Americans,Afghan National Army,All Nippon Airways,Anti-Nuclear Anti-body, Australian National Airways,Australian Natives' Association
ANC, African National Congress
AND, Andorra (ISO 3166 trigram)
ANFO, Ammonium nitrate/fuel oil (explosive)
ANG- Air National Guard, Angola (IOC and FIFA trigram, but not ISO 3166), Netherlands Antillian guilder (ISO 4217 currency code)
ANGLiCo, Air/Naval Gunfire Liaison Company
ANL, Argonne National Laboratory
ANM, Acoustic Noise Monitor
ANOVA, ANalysis Of VAriance
ANS, Applied and Natural Sciences
ANSI, American National Standards Institute
ANTM, America's Next Top Model
ANT- Netherlands Antilles (ISO 3166 trigram),Antigua and Barbuda (IOC trigram, but not ISO 3166 or FIFA)
ANTY,Acronyms, No Thank You
ANWR, Arctic National Wildlife Refuge /ˈænwɑr/
ANZ, Australia and New Zealand Banking Group
ANZAC, Australian and New Zealand Army Corps
AO, Angola (FIPS 10-4 country code; ISO 3166 digram), Approach Officer (submarine),Area of Operations
AOA, Air Officer in charge of Administration,Argonne National Laboratory, Angolan kwanza (ISO 4217 currency code), Award Of Arms (heraldry)
AOC, Air Operations Centre,Air Officer Commanding
AOD, Adrenalin O.D. (punk rock band)
AOI, Angle Of Incidence Arab Organization for Industrialization
AOL, America OnLine
AOR, Area of Responsibility
AOSTH, Adventures of Sonic the Hedgehog
AOTS, Attack of the Show!
AOU, American Ornithologists' Union
AP- Advanced Placement,Air Publication, Andhra Pradesh (Indian state code), Armed Forces Pacific (postal symbol), Associated Press,Auto Pilot
APOLLO, Apache Point Observatory Lunar Laser-ranging Operation
APP, Allied Procedural Publication
APR, Annual Percentage Rate
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]
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
AQIM, Al-Qaeda in the Islamic Maghreb
ar, Arabic language (ISO 639-1 code)
Ar, Argon
AR, Argentina (FIPS 10-4 country code; ISO 3166 digram),Arkansas (postal symbol),Armour, Arunachal Pradesh (Indian state code)
ASFAR, Americans for a Society Free of Age Restrictions
ASG, Area Support Group
ASIC, Australian Securities and Investments Commission, Aviation Security Identification Card
ASICS, Anima sana in corpore sano (Latin, "A sound mind in a sound body") (athletic shoe manufacturer)
ASIO, Australian Security Intelligence Organisation, Audio stream input output
ASIP, Advanced System Improvement Program,Army Stationing and Installation Plan,Application-specific instruction-set processor
ASL, Above Sea Level,American Sign Language (also known as Ameslan),"Age, Sex, Location?" (Internet slang)
asm, Assamese language (ISO 639-2 code)
ASM, Air-to-Surface Missile, American Samoa (ISO 3166 trigram), American Society for Metals, American Society for Microbiology
ASMB, American Society for Matrix Biology,Adult Swim Message Board
ASME, American Society of Mechanical Engineers,American Society of Magazine ors
ASMP, Air-Sol Moyenne Portée missile (French "Medium-range air to surface"), Asymmetric multiprocessing
ASN, Associate of Science in Nursing
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
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
ASPI, Australian Strategic Policy Institute
ASR, Alkali-silica reaction,Anti Slip Regulation
ASRAAM, Advanced Short-Range Air-to-Air Missile
ASSC, Association for the Scientific Study of Consciousness
AST, Atlantic Standard Time (UTC−4 hours)
ASTIA, Armed Services Technical Information Agency
ASTM, American Society for Testing and Materials
ASTREA, Aerial Support To Regional Enforcement Agencies (sheriff's air support unit)
ASUW, AntiSUrface Warfare
ASVAB,Armed Services Vocational Aptitude Battery(taken by juniors in high school in the USA)
ASVEL, Association Sportive Villeurbanne Éveil Lyonnais (Association Sportive is French for "Sporting Association"; the club was founded through the merger of AS Villeurbanne and Éveil Lyonnais)
ASW, AntiSubmarine Warfare
ASWORG, (U.S.) AntiSubmarine Warfare Operations Research Group
ATAT, Aiken Tactical Airsoft Team / Star Wars vehicle
ATB, Active Time Battle, British Antarctic Territory (ISO 3166 trigram; merged with AQ in 1979)
ATC, Air Traffic Control,Air Training Corps,U.S. Air Transport Command (1942-1948)- Athletic Trainer, Certified (www.nata.org)
ATCCIS, Army Tactical Command and Control Information System
ATESS, Aerospace and Telecommunications Engineering Support Squadron
ATF, French Southern Territories (ISO 3166 trigram), (U.S.) Bureau of Alcohol, Tobacco, Firearms and Explosives (from its previous name, which did not include "Explosives")
ATG, Antigua and Barbuda (ISO 3166 and FIFA trigram)
Atisbo,a Local Government Area in Nigeria named for constituent communities (Ago-Are, Tede, Irawo, Sabe, Baasi, Ofiki and Owo)
ATK, Attack
ATL, Atlanta, Georgia, the largest city and capital of Georgia
ATLAS, All-Terrain Lifter Army System, Assessment Tool for LAnd Systems
ATM, Automated Teller Machine,Asynchronous Transfer Mode,At The Moment
ATN, Dronning Maud Land (ISO 3166 trigram; merged with AQ in 1983)
ATO, Air Tasking Order,Australian Taxation Office
ATP, Adenosine TriPhosphate,Allied Tactical Publication,Ammunition Transfer Point
ATSD, (U.S.) Assistant Secretary of Defense
ATSDR, Agency for Toxic Substances and Disease Registry
ATV, All-Terrain Vehicle
ATWA, Air, Trees, Water, Animals
Au, Gold (Latin Aurum)
AU, African Union (was OAU before 2000),American University, Astronomical Unit,Australia (ISO 3166 digram),Austria (FIPS 10-4 country code)
AUC, Ab Urbe Condita / Anno Urbis Conditae (Latin "from the founding of the city" / "in the year since the founding of the city") (of Rome),Area Under the Curve (concentration time curve; medicine)
AUD, Australian dollar (ISO 4217 currency code)
AUS, Australia (ISO 3166 trigram)
AUSCANNZUKUS, Australia, Canada, New Zealand, United Kingdom, United States (security designation)
AVTB- Armoured Vehicle Test Bed, Aviation Test Bed
AVUM, Aviation Unit Maintenance
AVVO, Acute Vaginal Venereal Outbreak
aW, Attowatt
AW, Aruba (ISO 3166 digram)
AWA, American Wrestling Association
AWACS, Airborne Warning And Control System
AWC, Air Warfare Centre
AWD,many, including All Wheel Drive; see entry
AWE,(i/a) Advanced Warfighting Experiment
AWG, Aruban guilder (ISO 4217 currency code)
AWOL, Absent Without Official Leave / Absent WithOut Leave (military jargon)
AWP, Awaiting Parts (SM&R code)
AWSIM, Air Warfare SIMulation
AWST, Australian Western Standard Time
AWW, Above Water Warfare
AX, Åland Islands (ISO 3166 digram)
AXP, Ambulance eXchange Point
ay, Aymara language (ISO 639-1 code)
AY, Antarctica (FIPS 10-4 territory code)
AYBABTU, All Your Base Are Belong To Us
aym, Aymara language (ISO 639-2 code)
AYU, As Yet Unknown
az, Azerbaijani language (ISO 639-1 code)
AZ- Arizona (postal symbol),Azerbaijan (ISO 3166 digram), Alkmaar Zaanstreek (Dutch football club)
aze, Azerbaijani language (ISO 639-2 code)
AZE, Azerbaijan (ISO 3166 trigram)
AZN, Azerbaijani manat (ISO 4217 currency code)
AZUR, Actions en zone urbaine (French, Urban Operations)
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]
BB- Barbados (ISO 3166 digram; FIPS 10-4 country code), Boys' Brigade (Christian youth organization),Brigitte Bardot (actress),Bumblebee
BBB- Better Business Bureau,Blood-brain barrier
BBC- Breeding Bird Census,British Broadcasting Corporation, Bumper to Back of Cab (trucking measurement)
BBD- Barbadian dollar (ISO 4217 currency code), Bowel Bladder Dysfunction
BBL- Be Back Later,Bird Banding Laboratory,British Basketball League,BBN- Bolt, Beranek and Newman,BBQ- Barbecue[1]
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)
BBYO,B'nai B'rith Youth Organization
BC- Before Christ,Blind Copy (in emailers),Boston College, Botswana (FIPS 10-4 country code; from Bechuanaland),British Columbia (postal symbol)
BCCI- Bank of Credit and Commerce International,Board of Control for Cricket in India,BCD- Binary-Coded Decimal
BCE- Banque centrale européenne (French, "European Central Bank"),Battlefield Co-ordination Element,BC Electric, a former name for BC Hydro,Before Common Era,BCER- British Columbia Electric Railway,BCFG- Patchy Fog (METAR Code),BCIS (fratricide avoidance system)- Battlefield Combat Identification System,BCLL- Bibliography of Celtic Latin Literature,BCPL- Basic Combined Programming Language (progenitor of C)
BCS- Bachelor of Computer Science,Bardeen, Cooper, and Schrieffer superconduction theory,Bowl Championship Series (US college football),BCT- Brigade Combat Team,BD[edit],BD- Bangladesh (ISO 3166 digram)- Bermuda (FIPS 10-4 territory code),BDA- British Dental Association,BDD- Body Dysmorphic Disorder- British Defence Doctrine,Bde- Brigade,BDFL- Benevolent Dictator For Life,BDI- Burundi (ISO 3166 trigram),BDNF- Brain-Derived Neurotrophic Factor,BDO- Battle Dress Overgarment,BDOS- Basic Disk Operating System; part of CP/M,BDS- - Bachelor of Dental Surgery,BDSM- Bondage and Discipline, Domination and Submission, Sadism and Masochism,BDT- Bangladeshi taka (ISO 4217 currency code)- Bureau de développement des télécommunications (Telecommunication Development Bureau, became ITU-D),BDTA- British Dental Trade Association,BDU- Battle-Dress Uniform,BE[edit],be- Belarusian language (ISO 639-1 code),Be- Beryllium,BE- Belgium (FIPS 10-4 country code; ISO 3166 digram)
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
BES- Budget Estimate Submission, Caribbean Netherlands (ISO 3166 trigram; from the entity's alternate name of Bonaire, Sint Eustatius and Saba),BESS- Business, Education, and Social Sciences,BET- (a/i) Black Entertainment Television,BETS- Bradley Embedded Training System,BF[edit],BF- The Bahamas (FIPS 10-4 country code)- Burkina Faso (ISO 3166 digram),b/f- before,BFA- Burkina Faso (ISO 3166 trigram),BfArM- Bundesinstitut für Arzneimittel und Medizinprodukte, German governmental institute for drugs and medical devices,BFI- British Film Institute,BFR- Biennial flight review,BFR- Brominated Flame Retardant,BFSA- Blue Force Situation Awareness,BFT- Blue Force Tracking,BFF- Best Friends Forever,BFS- Belfast International Airport (IATA airport code),BFX- Bioinformatics,BG[edit],bg- Bulgarian language (ISO 639-1 code),BG- Bangladesh (FIPS 10-4 country code)- Battle Group- Body Guard- Brigadier General- Bulgaria (ISO 3166 digram),BGA- Ball Grid Array- Brandy and Ginger Ale (alcoholic beverage),BGD- Bangladesh (ISO 3166 trigram),BGN- U.S. Board on Geographic Names- Bulgarian lev (ISO 4217 currency code),BGR- Bulgaria (ISO 3166 trigram),BGS- Bristol Grammar School- British Geographical Survey,BGWG- Battle Group Wargame (military simulation; "big wig"),BH[edit],bh- Bihari languages (ISO 639-1 code),Bh- Bohrium
BH- Bahrain (ISO 3166 digram),Belize (FIPS 10-4 country code),BHD- Bahraini dinar (ISO 4217 currency code),BHR- Bahrain (ISO 3166 trigram)
BHS- British Home Stores, The Bahamas (ISO 3166 trigram),BI[edit],bi- Bislami language (ISO 639-1 code),Bi- Bismuth,BI- Burundi (ISO 3166 digram),BIAP- Baghdad International Airport- Biafran pound,BICS- (i/a) Battlefield Information and Communication System,BID- bis in die (Latin, "twice a day"),BIDST- British Institute of Dental and Surgical Technologists,BIF- Burundian franc (ISO 4217 currency code),bih- Bihari languages (ISO 639-2 code),BIH- Bosnia and Herzegovina (ISO 3166 trigram),BIOS- Basic Input/Output System- British Institute of Organ Studies,BIP- Battlefield Interoperability Programme (ancestor of MIP)- Broadcast incremental power algorithm,bis- Bislami language (ISO 639-2 code),BISEPS- Battlefield Identification System Environment Performance Simulation,BIST- Built-In Self-Test,BIT- Bilateral Investment Treaty- Built-In Test,BITE- Built-In Test Equipment,BJ[edit],BJ- Benin (ISO 3166 digram)- Blowjob (oral sex),BJJ- Brazilian Jiu-Jitsu,BJP- Bharatiya Janata Party (Indian People's Party),BJT- Bipolar Junction Transistor,BK[edit],Bk- Berkelium,BK- Burger King- Bankrupt (most often seen as "gone BK")- Bosnia and Herzegovina (FIPS 10-4 country code),BKN- Broken Sky (METAR Code),BL[edit],BL- Bolivia (FIPS 10-4 country code)- British Leyland,BLCSE- Battle Laboratory Constructive Simulation Environment,BLDU- Blowing Dust (METAR Code),BLEVE- Boiling Liquid Expanding Vapour Explosion ("blevy"),BLOB- Binary Large OBject,BLR- Belarus (ISO 3166 trigram),BLSA- Blowing Sand (METAR Code),BLRSI- Battle Lab Reconfigurable Simulator (U.S. Army),BLSN- Blowing Snow (METAR Code),BLT- Bacon Lettuce Tomato (sandwich),BLUFOR- Blue Force (military),BLUI- (a/i) Body Language User Interface ("blooie"),BLZ- Belize (ISO 3166 trigram),BM[edit],bm- Bambara language (ISO 639-1 code),BM- Battle Management- Bermuda (ISO 3166 digram)- Myanmar (FIPS 10-4 country code; from Burma),BMA- British Medical Association,BMCC- Borough of Manhattan Community College,BMD- Ballistic Missile Defence- Bermudian dollar (ISO 4217 currency code)- Boyevaya Mashina Desanta (Russian Боевая Машина Десанта, "Combat Vehicle Airborne") †[2]- British Military Doctrine,BMDG- British Military Doctrine Group,BMDO- (U.S.) Ballistic Missile Defense Organization ("bim-do"),BME- Biomedical Engineering- Black and Minority Ethnic group- Body Modification E-zine,BMEWS- (a/i) Ballistic Missile Early Warning System ("bee-mews"),BMI- Body Mass Index- Broadcast Music Incorporated,BMG- Bertelsmann Music Group,BML- Battle Management Language,BMNT- Begin Morning Nautical Twilight,BMP- Boyevaya Mashina Pekhoti (Russian Боевая Машина Пехоты, "Combat Vehicle for the Infantry") †[2],BMR- Basal metabolic rate- Bronirovannaya Mashina Razminirovaniya (Russian Бронированная Машина Разминирования, "Armoured Vehicle for Mine-Clearing") †[2],BMU- Bermuda (ISO 3166 trigram),BMW- Bayerische Motoren Werke (German, "Bavarian Motor Works"),BMX- Bicycle/Bike Moto (r) Cross,BN[edit],bn- Bengali language (ISO 639-1 code),Bn- Battalion,BN- Brunei (ISO 3166 digram; FIPS 10-4 country code),BND- Brunei dollar (ISO 4217 currency code),BnF- Bibliothèque nationale de France (French, "National Library of France")
BNF- Backus-Naur Form (computing),British National Formulary,BNICE- Biological, Nuclear, Incendiary, Chemical, and Explosive Agents
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)
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)
BoAML,Bank of America Merrill Lynch
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
BOGs, Bunch of Guys
BOI- Balance Of Investment,Basis Of Issue,BOL- Bolivia (ISO 3166 trigram)
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
BOQ- Bill Of Quotations,Bachelor Officers' Quarters,Bank Of Queensland,bos- Bosnian language (ISO 639-2 code),BOS- Battlefield Operating System
BOT- Balance of Trade, Botswana (IOC and FIFA trigram, but not ISO 3166), Build Operate Transfer, Bank of Thailand,BP[edit]
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
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
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)
BRB- Barbados (ISO 3166 trigram), "Be Right Back" (Internet chat abbreviation),BRDM- Boyevaya Razvedyvatelnaya Dosornaya Mashina (Russian Боевая Разведывательная Дозорная Машина, "Combat Reconnaissance Patrol Vehicle") †[2],bre- Breton language (ISO 639-2 code),BRFSS- Behavioral Risk Factor Surveillance System ("burf-us", a CDC health survey covering the U.S. and its territories),BRI- Bathroom ers Institute (publishers of series of "Uncle John's Bathroom ers" books),BRIC- Brazil, Russia, India and China,BRICS- Brazil, Russia, India, China and South Africa,BRIMS- Behavior Representation In Modeling and Simulation (conference),BRL- Brazilian real (ISO 4217 currency code),BRM- Boyevaya Razvedyvatelnaya Mashina (Russian Боевая Разведывательная Машина, "Combat Reconnaissance Vehicle") †[2]
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)
BS- The Bahamas (ISO 3166 digram),Bassas da India (FIPS 10-4 territory code),Bachelor of Science degree,British subject
Bullshit-
BSA- Birmingham Small Arms (motorcycles company),Boy Scouts of America,Brigade Support Area
BSatCoP,Benjamin Sniddlegrass and the Cauldron of Penguins
BSD- Bahamian dollar (ISO 4217 currency code), Berkeley Software Distribution (distinct from BSoD)
BSE, Bovine Spongiform Encephalopathy, better known as mad cow disease
BSN-Baloncesto Superior Nacional (Spanish, "National Superior Basketball"; top Puerto Rican league),Bank Simpanan Nasional (Malay, "National Savings Bank"; government-owned Malaysian bank)
BSNL-Bharat Sanchar Nigam Limited, Bachelor of Science in Nursing,BSoD- Blue Screen of Death (distinct from BSD)
BSP- Between-Show Promotion,Binary Space Partitioning,Board Support Package,British Standard Pipe (screw thread), Business-sponsored,Bone sialoprotein
BST- Binary search tree,Blended Sales Tax, Bovine somatotropin, British Summer Time,BSW- British Standard Whitworth (screw thread),BSX- Bendigo Stock Exchange,BT[edit]
Bt- Baronet,Bacillus thuringiensis
BT- Baal teshuva (Hebrew, "master of repentance")- used to describe a Jew who adopts Orthodox Judaism as an adult,Bathythermograph, Bhutan (FIPS 10-4 country code; ISO 3166 digram), BitTorrent,British Telecom, the former name of the company now known as BT Group,BTDT- Been There, Done That,Bti- Bacillus thuringiensis israelensis,BTID- Battlefield Target Identification Device,BTIS- Battlefield Target Identification System
BTN- Bhutan (ISO 3166 trigram),Bhutanese ngultrum (ISO 4217 currency code),BTO- Built To Order,BTP- British Transport Police,BTR- Bronetransporter (БТР = Бронетранспортер "(Heavy) Armoured (Personnel) Transporter") †[2],BTU- British Thermal Unit,BTW- By The Way,BU[edit],BU- ,Bulgaria (FIPS 10-4 country code)-,Burma (ISO 3166 digram; obsolete since 1989),BUAV- British Union for the Abolition of Vivisection,BUG-E- Battlefield Universal Gateway Equipment ("buggy"),bul- ,Bulgarian language (ISO 639-2 code),BUL- ,Bulgaria (IOC and FIFA trigram, but not ISO 3166),BUNO or BuNo- Bureau Number (aircraft serial number),BUR- ,Burma (ISO 3166 trigram; obsolete since 1989),BV[edit],BV- ,Background Vocals-,Battlefield Visualization- ,Bouvet Island (ISO 3166 digram; FIPS 10-4 territory code),BVD- Bradley, Voorhees & Day (underwear manufacturer),BVR- Beyond Visual Range,BVT- Bouvet Island (ISO 3166 trigram),BW[edit],B&W- Babcock & Wilcox- Black and White- Bowers & Wilkins,BW- Bring Wedges (ISO digram),BW- Botswana (ISO 3166 digram),BWA- Botswana (ISO 3166 trigram),BWARS- Bees, Wasps & Ants Recording Society,BWC- Biological and Toxin Weapons Convention,BWP- Botswanian pula (ISO 4217 currency code),BWR- Boiling-Water Reactor,BX[edit],BX- Base eXchange- ,BY[edit],BY- ,Burundi (FIPS 10-4 country code)-,Belarus (ISO 3166 digram),BYOB- Bring Your Own Bottle (or "beer", "beverage", or "booze") (multiple, but similar, meanings),BYOC- Bring Your Own Computer (play on BYOB),BYOF- Bring Your Own Flask,BYR- Belarusian ruble (ISO 4217 currency code),BYS- ,Byelorussian Soviet Socialist Republic (ISO 3166 trigram; obsolete since 1992),BYU- Brigham Young University,BZ[edit],BZ- Belize (ISO 3166 digram),BZD- Belize dollar (ISO 4217 currency code),BZP- Benzylpiperazine,References[edit],^ See references and discussion under Barbecue and :List of acronyms and initialisms: B. Examples of use: [1], [2], [3], [4],^ a b c d e f http://www.milparade.com/Soderzhaniye.pdf,^ http://www.tbkarunia.com,v,t,e,List of acronyms,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,Retrieved from "https://en.wikipedia.org/w/index.php?title=List_of_acronyms:_B&oldid=693551285",Categories: Lists of abbreviations,Navigation menu,Personal tools,Not logged inContributionsCreate accountLog in,Namespaces,,,,,,,View history,
c, Centi
C, Carbon,Coulomb,One Hundred (in Roman numerals)
c2c, the British rail company formerly known as LTS Rail
C2C, Consumer-To-Consumer electronic commerce,Cam-To-Cam internet chat
ca, Catalan language (ISO 639-1 code)
Ca, Calcium
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
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
CAAT- or Campaign Against Arms Trade,Center for Alternatives to Animal Testing
CAC- California Association of Criminalists,Chronic Asymptomatic [Disease] Carrier,CACM Central American Common Market
CACM, Communications of the ACM
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
Canola, Canadian oil, low acid (referring to a specific cultivar of rapeseed bred to have a low erucic acid content)
CAP- Combat Air Patrol,Civil Air Patrol,Common [Operating/Operational] Air Picture,Crisis Action Procedures,Common Agricultural Policy (European Union)
CAPES- CAPability Evaluation System, Combined Arms Planning and Execution System
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)
CARMONETTE, Computerized Monte Carlo Simulation
CARP, Computed Air Release Point
CART, Championship Auto Racing Teams (now defunct)
CAS- Chemical Abstracts Service,Chief of the Air Staff,Close Air Support
CASTFOREM, Combined Arms and Support Task FORce Evaluation Model
CASTOR, Canadian Automatic Small Telescopes for Orbital Research
cat, Catalan language (ISO 639-2 code)
CAT- Community Acceptance Testing,Computer-Assisted (or Axial) Tomography
CATK, Counterattack
CATS, Computer Active Technology Suspension
CATT,(a/i) Combined Arms Tactical Trainer
CAV, Cavalry
CAVOK, Ceiling And Visibility OK ("Kav-okay")
CAW, Canadian Auto Workers (trade union)
CB- Citizens' Band radio, Cambodia (FIPS 10-4 country code)
CBASSE, Commission on Behavioral And Social Sciences and Education ("sea bass")
CBC- Canadian Broadcasting Corporation,Christmas Bird Count,Cipher-Block Chaining,Cornering Brake Control
CBE- Commander of the Order of the British Empire,Cab Beside Engine (see truck)
CBF, Confederação Brasileira de Futebol (Portuguese, "Brazilian Football Confederation")
CBGB, Country, Blue Grass, and Blues (former New York City nightclub)
CBLA, Comparative bullet lead analysis
CBN,CardsApp Brand Number
CBM,many, including Canadian Baptist Ministries and Commodore Business Machines; see entry
CBML, Coalition Battle Management Language
CBOL, Consortium for the Barcode of Life
CBOT, Chicago Board of Trade
CBR, Case-Based Reasoning
CBRN, Chemical, Biological, Radiological, or Nuclear (weapon or event)
CBRNE, Chemical, Biological, Radiological, Nuclear or [high-yield] Explosive (weapon or event)
CBS- Columbia Broadcasting System,Corps Battle Simulation
CBT- Cognitive Behaviour Therapy, Combat
CBUS, Columbus, Ohio
CC,many, including carbon copy; see entry
CCA, Counter Command Activity
CCC- Canterbury Clothing Company,Civilian Conservation Corps (U.S., 1930s and 1940s),Corpus Christi College, Oxford
CCCP- Central Committee of the Communist Party,Cyrillic for SSSR (Soyuz Sovetskikh Sotsialisticheskikh Respublik, Russian Союз Советских Социалистических Республик, Union of Soviet Socialist Republics)
CCD- Charge-Coupled Device,Confraternity of Christian Doctrine (Catechism)
CCF, Cartoon Cartoon Fridays
CCG- Canadian Coast Guard,Collectible Card Game
CCGC- Canadian Coast Guard Cutter,Canadian Coast Guard College
CCGH, Canadian Coast Guard Hovercraft
CCGS- Canadian Coast Guard Ship,Christ Church Grammar School
CCH, Computer-Controlled Hostile
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)
CCII- Command and Control Information Infrastructure,Community Capital Investment Initiative
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
CCIT, Comité consultatif international télégraphique (French for International Telegraph Consultative Committee, merged with the CCIF in 1956 to form the CCITT)
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)
CCK- Cholecystokinin, Cocos (Keeling) Islands (ISO 3166 trigram)
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
CCOC- Canadian Children's Opera Chorus,Crosley Car Owners Club
CCOP, Coalition Common Operating/Operational Picture
CCRAp, Canadian Conservative Reform Alliance party
CCRP, Command and Control Research Program
CCRTS, Command and Control Research and Technology Symposium
CCSCS, Coordinadora de Centrales Sindicales del Cono Sur
CCSCS, Consultative Committee for Space Data Systems
CCSIL, Command and Control Simulation Interface Language ("cecil")
CCSK, Cyclic Code Shift Keying
CCT, Current Commitments Team
CCTT, Close Combat Tactical Trainer
cd, Candela
Cd, Cadmium
CD,many, including Compact Disc; see entry
CD1, Cluster of Differentiation 1 (a small gene family)
CDA, UK Centre for Defence Analysis
CDC- Centers for Disease Control and Prevention (originally (U.S.) Communicable Disease Center),Control Data Corporation,Cult of the Dead Cow
CDD, Capabilities Development Document
CDE, Chemical Defence Equipment
CDEC, U.S. Combat Development Experimentation Center
CDF- California Department of Forestry [and Fire Protection],Common Data Format, Democratic Republic of Congo franc congolais (ISO 4217 currency code)
CDIAC, Carbon Dioxide Information Analysis Center ("see-dee-ack")
CDipAF, Certified Diploma in Accounting and Finance
CDL, Commercial driver's license
CDM- Clean Development Mechanism (Kyoto protocol),Cold Dark Matter (astronomy)
CDMA, Code Division Multiple Access
CDMSII, Cryogenic Dark Matter SearchII
Cdr, Commander
CDS- Chief of the Defence Staff,Credit default swap
Cdt, Commandant
CDT, Central Daylight Time (UTC−5 hours)
ce, Chechen language (ISO 639-1 code)
Ce, Cerium
CE,many, including Christian/Common Era (cf. AD); see entry
CEA, Campaign Effectiveness Analysis
CECOM, U.S. Army Communications and Electronics Command
CEDEX, Courrier d'entreprise à distribution exceptionnelle (French, "Company Mail with Exceptional Distribution"; "exceptional" refers to the volume of mail)
CEGEP, Collège d'enseignement général et professionnel (French, "College of General and Vocational Education")
CEI, Competitive Enterprise Institute
CENTCOM, United States Central Command
CENTO, Central Treaty Organization (Baghdad Pact)
CENZUB, Centre d'entraînement aux actions en zone urbaine (French, "Urban Operations Training Centre")
CEO, Chief Executive Officer
CEP, Circular Error Probable
CEPT,(a/i) Conférence européenne des administrations des postes et des télécommunications (French, "European Conference of Postal and Telecommunications Administrations")
CERCLA, U.S. Comprehensive Environmental Response, Compensation, and Liability Act (Superfund)
CERDEC,U.S. Communications-Electronics Research, Development and Engineering Center
CERGA, Centre de recherches en géodynamique et astrométrie (French, "Astrometry and Geodynamics Research Centre")
CERN, Centre européen pour la recherche nucléaire (French, "European Organization for Nuclear Research")
CIB, Complete In Box (Internet auction/trading listings)
CIBC, Canadian Imperial Bank of Commerce
CICS, Customer Information Control System (IBM mainframe software; "kicks" or "C-I-C-S")
CID- Combat Identification, Criminal Investigation Division,Criminal Investigations Department
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.
CIEF, Comité international d'enregistrement des fréquences (International Frequency Registration Board)
CIF, Cost, Insurance, and Freight (Paid) (shipping)
CIMIC, Civil-Military Co-operation
CIMMYT,(a/i) Centro Internacional de Mejoramiento de Maíz Y Trigo (Spanish, "International Maize and Wheat Improvement Center")
CINC, Commander in Chief
CINEOS, Campo Imperatore Near-Earth Object Survey
CIO- Chief information officer,Congress of Industrial Organizations
CIP, Combat Identification Panel
CIPE, (European) Centre for International Political Economy
CIR, (Commander's) Critical Information Requirements
CIR, Corotating Interaction Region
CIS- Canadian Interuniversity Sport,Commonwealth of Independent States,Command and Information System,Communication and Information System
CISA, (U.S.) C4I Integration Support Activity
CISB, Complete In Sealed Box (Internet auction/trading listings)
CISPR, Comité international spécial des perturbations radioélectriques (Special International Committee on Radio Interference)
CISSP, Certified Information Systems Security Professional
CITES, Convention on International Trade in Endangered Species (of Wild Fauna and Flora) ("sigh-tease")
CITS, Combat Identification Training System
CIV, Côte d'Ivoire (ISO 3166 trigram)
CIVETS, Colombia, Indonesia, Vietnam, Egypt, Turkey, South Africa (economics)
CIVPOP, Civilian Population
CIWS, Close-In Weapon System
CHRS,Canadian Heart Rhythm Society
CJ, Cayman Islands (FIPS 10-4 country code), Criminal Justice
CJC, Canadian Jewish Congress,Cold Junction Compensation
CMLL, Consejo Mundial de Lucha Libre (Spanish, "Worldwide Wrestling Council"—Mexican professional wrestling promotion)
CMM, Capability Maturity Model
CMMC, Corps Materiel Management Centre
CMML- Chronic MyeloMonocytic Leukemia,Continuous Media Markup Language
CMO, Civil-Military Operations
CMOC, Civil-Military Operations Centre
CMOS- Canadian Meteorological and Oceanographic Society,(The) Chicago Manual of Style,Complementary Metal Oxide Semiconductor
CMP, Common [Operating/Operational] Maritime Picture
CMP, Canadian Military Pattern truck (World War II)
CMPD, Chronic Myeloproliferative Disease
CMPD, Charlotte Mecklenburg Police Department
CMR- Cameroon (ISO 3166 trigram), Coaxial Main Rotors (helicopter type)
CMS- Centers for Medicare and Medicaid Services,The Chicago Manual of Style
CMT, Country Music Television
CMU- Carnegie Mellon University,Central Michigan University,Concrete Masonry Unit
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)
CN-(i/s) Canadian National (railway; also the AAR reporting mark for said company), China (ISO 3166 digram),Comoros (FIPS 10-4 country code)
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
CNBC,(a/i) Consumer News and Business Channel
CND- Campaign for Nuclear Disarmament,Computer Network Defence
CNE- Canadian National Exhibition,Computer Network Exploitation,Certified Network Engineer
CNF, Cost and Freight
CNI, Communications, Navigation and Identification
COEIA, Combined Operational Effectiveness and Investment Appraisal (military)
COFT, Conduct Of Fire Trainer (military)
COG, Centre Of Gravity,Current Operations Group (military), Republic of the Congo (ISO 3166 trigram)
COGENT, Cognitive Objects within a Graphical EnviroNmenT
COIL, Chemical Oxygen Iodine Laser
COIN, Counter-Insurgency (military)
COK, Cook Islands (ISO 3166 trigram)
COL, Colombia (ISO 3166 trigram)
COLA, comp.os.linux.announce,Cost Of Living Adjustment
COLT, Combat Observation and Lasing Team (military)
COM, Comoros (ISO 3166 trigram), Component Object Model
COMECON, Council for Mutual Economic Assistance (economic counterpart of the Warsaw Pact, 1949-1991)
COMMZ, Communications Zone (military)
COMSEC, Communications Security (military)
CONAD, U.S. Continental Air Defense Command
CONCACAF, Confederation Of North, Central American and Caribbean Association Football
CONMEBOL, Confederación Sudamericana de Fútbol or Confederação Sul-Americana de Futebol (respectively Spanish and Portuguese for "South American Football Confederation")
CONOPS, Concept of Operations (military)
CONUS, Continental United States
COO, Chief Operating Officer
COP, Colombian peso (ISO 4217 currency code), Common Operating/Operational Picture
COPE, U.K. Committee On Publication Ethics
COPUS, U.K. Committee on the Public Understanding of Science
cor, Cornish language (ISO 639-2 code)
CORBA, Common Object Request Broker Architecture
CORD,(i/a) Common Operational Requirements Document
CORE, Consortium for Oceanographic Research and Education
CORG, (U.S.) Combat Operations Research Group
COROT, COnvection, ROtation and planetary Transits
cos, Corsican language (ISO 639-2 code),Cosine
COS, Cooper Ornithological Society
COSCOM, Corps Support Command (military)
COSER, COoperative SERvice
CoT, Car of Tomorrow (former NASCAR race car design)
COTS, Commercial Off The Shelf
Coy, Company (military unit)Cow
CP, Canadian Pacific,Check Point,Command Post,Club Penguin
CPA, Certified Public Accountant
CPAC, Conservative Political Action Conference,Cable Public Affairs Channel ("see-pack")
CQD, Close Quarters Drill (Morse distress code preceding SOS: CQ "calling all stations", D "Distress"; often incorrectly interpreted as "Come Quick, Distress")
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)
CRD, Capstone Requirements Document
cre, Cree language (ISO 639-2 code)
CREB, Cyclic AMP-response Element Binding (protein)
CREEP, Committee for the Re-Election of the President, a pejorative nickname used by opponents
CRI- China Radio International, Costa Rica (ISO 3166 trigram)
CRO, Croatia (IOC and FIFA trigram, but not ISO 3166)
CRP- Committee for the Re-Election of the President,Control and Reporting Post
CRT- Cardiac Resynchronization Therapy,Cathode Ray Tube,Chinese Remainder Theorem
CRTC, Canadian Radio-television and Telecommunications Commission
cs, Czech language (ISO 639-1 code)
Cs, Caesium
CS- Combat Support,Computer Scientist, Costa Rica (FIPS 10-4 country code),Serbia and Montenegro (ISO 3166 digram; obsolete since 2006)
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
CSAR, Combat Search and Rescue ("seessar")
CSC- Closed Spacelike Curve (relativity),Compact system camera,Computer Sciences Corporation,Computer Security Centre,CSCC Canadian Society of Clinical Chemists
CSEAL,(i/a) Combat Systems Engineering and Analysis Laboratory ("see-seal")
CSERIAC, (U.S. DoD) Crew Systems Ergonomics Information Analysis Center
CSG, Corps Support Group
CSI,see entry
CSICOP, Committee for the Scientific Investigation of Claims of the Paranormal (became the Committee for Skeptical Inquiry in 2006)
CSIP, Commercial Stable Image Platform (AMD)
CSIS- Canadian Security Intelligence Service ("seessiss"), (U.S.) Center for Strategic & International Studies
CSK, Czechoslovakia (ISO 3166 trigram; obsolete since 1993)
CSL, U.K. Central Science Laboratory
CSPI, Center for Science in the Public Interest
CSR, Control Supply Rate
CSR, Corporate Social Responsibility [1]
CSRC, Conflict Studies Research Centre
CSRF, Cross-Site Request Forgery
CSS- Cascading Style Sheets,Catalina Sky Survey,Central Security Service,Combat Service Support,Confederate States Ship,Content-scrambling system,Cross-site scripting
CSSCS, Combat Service Support Control System
CST, Central Standard Time (UTC−6 hours)
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)
CTA- Central African Republic (FIFA trigram, but not ISO 3166 or IOC), Chicago Transit Authority, Comando-Geral de Tecnologia Aerospacial (Portuguese, [Brazilian] "General Command for Aerospace Technology")
CTBT, Comprehensive [Nuclear] Test Ban Treaty
CTC, Closed Timelike Curve (relativity),(U.S.) Combat Training Center
CTDB, Compact Terrain Data Base (file format)
CTE- Canton and Enderbury Islands (ISO 3166 trigram; obsolete 1984), Chronic traumatic encephalopathy
CTS, Clear-To-Send,Collective Training Standards,Communications Technology Service,Contract Technical Services,Conversation Time Sharing,COSMIC Top Secret
CTSS, Compatible Time-Sharing System
CTU, Counter Terrorist Unit (fictional branch of the Central Intelligence Agency in the television action series 24)
CTVT, Canine Transmissible Venereal Tumour
cu, Old Church Slavonic language (ISO 639-1 code)
Cu, Copper (Latin Cuprum)
CU, Carrie Underwood,Cuba (FIPS 10-4 country code; ISO 3166 digram)
CUB, Cuba (ISO 3166 trigram)
CUCV, Commercial Utility Cargo Vehicle
CUNY, City University of New York ("CUE-knee")
CUP, Cuban peso (ISO 4217 currency code)
CUPE, Canadian Union of Public Employees ("CUE-pee")
CUPS, Common Unix Printing System
CUPW, Canadian Union of Postal Workers
CUREA, Consortium for Undergraduate Research and Education in Astronomy
CuW, Copper-tungsten pseudo-alloy (from the chemical symbols of the two component elements)
CUW, Curaçao (ISO 3166 trigram)
cv, Chuvash language (ISO 639-1 code)
CV,many, including curriculum vitae (résumé); see entry
CX, Christmas Island (ISO 3166 digram),One Hundred and Ten (in Roman numerals)
CXR, Christmas Island (ISO 3166 trigram)
cy, Welsh language (ISO 639-1 code)
CY, Calendar year, Cyprus (ISO 3166 and FIPS 10-4 country code digram)
cym, Welsh language (ISO 639-2 code)
CYM, Cayman Islands (ISO 3166 trigram)
CYP, Cyprus (ISO 3166 trigram),Cyprus pound (ISO 4217 currency code)
CZ, Combat Zone, Czech Republic (ISO 3166 and FIPS 10-4 country code digram)
CZE, Czech Republic (ISO 3166 trigram)
CZK, Czech koruna (ISO 4217 currency code)
CZF, (Christian Zombie Fan)
CZMA, (US) Coastal Zone Management Act
d, Deci
D, Deuterium
da, Danish language (ISO 639-1 code),deca
DA, Denmark (FIPS 10-4 country code), Debtors Anonymous, U.S. Department of the Army,District Attorney
DAB,Digital Audio Broadcasting
DACT, Data Automated Communications Terminal,Dissimilar Air Combat Training
DADVSI, Loi sur le droit d’auteur et les droits voisins dans la société de l’information (French, "Law on copyrights and related rights in the information society")
DAES, Defence Acquisition Executive Summary,(UK MoD) Directorate of Analysis, Experimentation and Simulation
DAF, Dissolved Air Flotation, a technique used in water treatment
DAFIF, Digital Aeronautical Flight Information File
DARPA, U.S. Defense Advanced Research Projects Agency
DART, Disaster Assistance Response Team,Dublin Area Rapid Transit
DAS, Defensive Aids Suite
DASD, (U.S.) Deputy Assistant Secretary of Defense
DASL, Datapoint's Advanced Systems Language
DAU, (U.S.) Defense Acquisition University
DAWN, (U.S.) Drug Abuse Warning Network
dB, Decibel
Db, Dubnium
DB, Database,Deutsche Bahn
DBA, De Bellis Antiquitatis (miniature wargaming rules)
DBBL, (U.S. Army Simulation Center) Dismounted Battlespace Battle Laboratory
DBCS, Double Byte Character Set
DBDO, Desert BDO
DBE, Dame Commander of the Order of the British Empire
DBF, Detection By Fire (weapon launch signature)
DBM, De Bellis Multitudinis (miniature wargaming rules),Detection By Movement (military target)
DBR, De Bellis Renationis (miniature wargaming rules)
DBRA, Davis-Bacon Related Acts
DBS, Direct Broadcast Services (television)
DC, da capo,Italian Democrazia Cristiana,Digital Compass,Direct Current, District of Columbia (postal symbol), Douglas Aircraft Company,Dublin Core,Duty Cycle
DCA, Defensive Counter Air,Drum Corps Associates, DiChloroAcetate, Ronald Reagan Washington National Airport (IATA code)
DCAA, (U.S.) Defense Contract Audit Agency
DCAS, Devon and Cornwall Archery Society
DCC, Dallas Christian College
DCC, Digital Command Control (model railroading),Direct Client-to-Client (Internet Relay Chat),Dismounted Close Combat
DCCP, Datagram Congestion Control Protocol
DCD, [Organ] Donation after Cardiac Death
DCE, Data Communication Equipment
DCFC, Death Cab for Cutie
DCI, Detection, Classification and Identification,Drum Corps International,Duellists' Convocation International, now known simply by the initials
DCIM, Digital Camera Images
DCIMS, Dental Classification Information Management System,Dismounted Combat Identification Marking System
DCL,Disney Cruise Line
DCN,Deacon
DCOM,Disney Channel Original Movie
DCOP, Desktop Communication Protocol
DCSOPS, Deputy Chief of Staff for Operations and plans
DCW, Digital Chart of the World
DCYSC, Discovery Channel Young Scientist Challenge
DD,many, including due diligence and dear daughter (increasingly prevalent on social mailing lists, blogs, and bulletin boards); see entry
DDA- Digital Differential Analyzer (graphics algorithm),Digital Differential Analyzer,Deputy District Attorney
DDD- Data Display Debugger,Digital Digital Digital (CD mastering)
DDL, Digital Data Link
DDN, U.S. Defense Data Network
DDoS, Distributed Denial of Service
DDP- Danish Design Prize,Deutsche Demokratische Partei (German, "German Democratic Party",former political party in Weimar Germany),Diamond Dallas Page (American professional wrestler)
DDR- Dance Dance Revolution,Deutsche Demokratische Republik (German, "German Democratic Republic" (GDR), East Germany),Double Data Rate, East Germany (ISO 3166 trigram, obsolete since 1990),DDR&E, (U.S.) Defense Department Research and Engineering
DE, Delaware (postal symbol),Germany (ISO 3166 digram)
DEA, Drug Enforcement Administration
DEA, Drug Enforcement Agency
DEC,(a/i) Department of Environmental Conservation,Digital Equipment Corporation,Disasters Emergency Committee
DeCA, (U.S.) Defense Commissary Agency
DECSIM, Model DEComposition and SIMulation algorithm,Directed Energy Combat SIMulation
DECT, Digital European Cordless Telephone
DEFCON, Defence readiness condition
DEFRA, (UK) Department for Environment, Food and Rural Affairs
DELT, Dual Ended Line Test (ing)
DEM, Data Exchange Mechanism,Digital Elevation Model
DEN, Denmark (IOC and FIFA trigram, but not ISO 3166)
DEPSECDEF, (U.S.) Deputy Secretary of Defense
DERA, British Defence Evaluation and Research Agency (1995-2001)
DES, Deep Ecliptic Survey
deu, German language (ISO 639-2 code)
DEU, Germany (ISO 3166 trigram)
DF- Direct Fire,Direction Finding,Distrito Federal (Spanish and Portuguese for "federal district")
DFAD, Digital Feature Analysis Data ("dee-fad")
DFAS, (U.S.) Defense Finance and Accounting Service
DFB, Deutscher Fußball-Bund (German for "German Football Association")
DFCB, Data Format Control Book
DfID, UK Department for International Development
DFL- Democratic-Farmer-Labor (the full designation of the Minnesota affiliate of the U.S. Democratic Party),Deutsche Fußball Liga (German for "German Football League"), the operator of the top two leagues of German football
DFM, Dynamic Flowgraph Methodology
DFM,(ii) Discrete Field Model see Superluminal motion
DFSP, Dermatofibrosarcoma protuberans
DfT, UK Department for Transport
DFTBA, Don't Forget To Be Awesome- a term commonly used by the Vlogbrothers
DG, Dei gratia (Latin, "by the grace of God"),Director-General,Data General
DGA, Direction générale des armées (French "Armed Forces General Directorate")
DGPS, Differential GPS
DGZ, Desired Ground Zero
DH, dear husband (increasingly prevalent on social mailing lists, blogs, and bulletin boards),Designated hitter
DHA, DocosaHexaenoic Acid
DHHS, (U.S.) Department of Health and Human Services
DHL, Dalsey, Hillblom, and Lynn (courier service)
DHRA, (U.S.) DoD Human Resources Activity
DHS, U.S. Department of Homeland Security
DHSS, UK Department of Health and Social Security
DHTFYSS, U.S. Don't Have Time For You Silly S****
DHY, Dahomey (ISO 3166 trigram; became BEN for Benin in 1977)
DIA, U.S. Defense Intelligence Agency
DIAC, Department of Immigration and Citizenship (Australia) [1]
DiC,Design Island Centre (computing usually used in a teaching situation)
DICASS, DIrectional Command Activated Sonobuoy System
DILLIGAD, Do I Look Like I Give A Damn? (military shorthand, slightly less offensive than the following)
DILLIGAF, Do I Look Like I Give A Fuck? (military shorthand)
DIF, Data Interchange Format
DIFAR, DIrectional Frequency Analysis and Recording
DIME, Dense Inert Metal Explosive
DIMM, Dual In-line Memory Module (computing)
DIN- Deutsches Institut für Normung (German, "German Institute for Standardization"),Drug Identification Number (Canadian drug marketing requirement)
DINA-(p/a) Diesel Nacional (Spanish, "National Diesel"—Mexican bus and truck manufacturer now known as DINA),Dirección de Inteligencia Nacional (Spanish, "National Intelligence Directorate"—former secret police of Chile)
DINKY, Double Income, No Kids Yet
DIP, Dual In-line Package (electronics)
DIPS, Defense independent pitching statistics
DIR, Defence Industrial Research
DIS- Defence Intelligence Staff,(U.S.) Defense Investigative Service,Distributed Interactive Simulation,Draft International Standard (ISO)
DISA- U.S. Defense Information Systems Agency,Distinguished Individual Service Award
DISCOM, Division Support Command
DISE, Deployable Intelligence Support Element
DISSTAF, DIS Search and Target Acquisition Fidelity experiment
DITY,(i/a) Do-It-Yourself
div, Dhivehi language (ISO 639-2 code)
DIVAD, Division Air Defence
DIY, Do It Yourself
DJ, Disc Jockey,Dinner Jacket, Djibouti (ISO 3166 digram; FIPS 10-4 country code)
DJD, Degenerative Joint Disease,Dublin Julian Day,Discoveries in the Judaean Desert
DJF, Djibouti franc (ISO 4217 currency code)
DJI, Djibouti (ISO 3166 trigram)
DJS, Director, Joint Staff
DK, Denmark (ISO 3166 digram)
DKK, Danish krone (ISO 4217 currency code)
DL,Dexter's Laboratory
DLA, U.S. Defense Logistics Agency, Dental Laboratories Association
DLIC, Detachment Left-In-Contact
DLIR, Depot-Level Inspection and Repair
DLL, Dynamic Link Library
DLPMC, DorsoLateral PreMotor Cortex
DLR, Deutsches Zentrum für Luft- und Raumfahrt (German, German Aerospace Centre),Docklands Light Railway
DLRP, Data Link Reference Point
DLS, Deep Lens Survey
DLSA, (U.S.) Defense Legal Services Agency
DLSc, Diploma in Library Science
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
DLTBGYD,Don't let the bastards grind you down
DM- Dominica (ISO 3166 digram), Dungeon Master (role-playing games)
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)
DMC, (U.S.) Defense Management Council
DMCA,Digital Millennium Copyright Act
DMD- dentariae medicinae doctor (Latin, "doctor of dental medicine"),Digital Micromirror Device,Digital Multilayer Disk
DMI, Desktop Management Interface (computing)
DMM,Digital Multimeter
DMOC, Distributed Mission Operations Centre
DMOS,(i/a) Double Diffused MOS transistor ("dee-moss")
DMPA, (U.S.) Defense Medical Programs Activity
DMPFC, DorsoMedial PreFrontal Cortex
DMPK, Drug Metabolism and Pharmacokinetics
DMRB, Design Manual for Roads and Bridges
DMS, U.S. Defense Message System
DMSO- Dimethyl sulfoxide, U.S. Defense Modeling & Simulation Office ("dim-so"), now Modeling and Simulation Coordination Office
DMSP, U.S. Defense Meteorological Satellite Program
DMT, Dimethyltryptamine
DMU, Diesel Multiple Unit, a method of connecting self-propelled railway vehicles together to form a train under the control of one driver.
DMV, Department of Motor Vehicles
DMZ, DeMilitarized Zone
DN, Deacon
DNA, U.S. Defense Nuclear Agency,DeoxyriboNucleic Acid,Douglas Noël Adams
DNAW, Day Night All Weather
DND, Department of National Defence (Canada),Do Not Disturb
DNDi, Drugs for Neglected Diseases initiative
DNDO, U.S. Domestic Nuclear Detection Office
DNM, Defence Nuclear Material
DNK, Denmark (ISO 3166 trigram)
DNR, Do Not Resuscitate
DNS, Domain Name System
DO, Dominica (FIPS 10-4 country code),Dominican Republic (ISO 3166 digram), Doctor of Osteopathic Medicine
DOA, Dead On Arrival,Dead or Alive
DOB, Date Of Birth
DOD, U.S. Department of Defense
DODAF, U.S. Department of Defense Architectural Framework
DoDD, U.S. Department of Defense Directive
DoDEA, (U.S.) Department of Defense Education Activity
DOE,(i/a) U.S. Department of Energy
DOHC, Dual-OverHead-Cam engine
DOI, Digital Object Identifier,U.S. Department of the Interior
DOM, Deo optimo maximo (Latin, "to God, the best and greatest"), Document Object Model, Dominican Republic (ISO 3166 trigram)
DOMS, (U.S.) Director of Military Support
DOP, Dominican peso (ISO 4217 currency code)
DORA, Defence of the Realm Act
DOS, Denial of Service (DoS, cf. DDoS),Density of State,Disk Operating System
DOT, Department of Transportation (U.S. federal or state),Damage Over Time (common in World of Warcraft)
DOTA,short-form for DEFENSE OF THE ANCIENTS a popular online epic game
DotD, Deal of the Day (marketing gimmick)
DOTMLPF, Doctrine, Organization, Training, Materiel, Leadership, Personnel, and Facilities (mnemonic)
DOW, Died of Wounds
DP, Division de production (Algerian petroleum company)
DRIC,(i/a) (U.S.) Defense Research Information Center
DRL, Daytime Running Lights,Dorman Roberts Ltd.
DRM, Digital Rights Management
DRMS, (U.S.) Defense Revitalization and Marketing Service
DRPR, Drawing Practices
DRT, Document Related Technologies
Ds, Darmstadtium
DS- Dear son (increasingly prevalent on social mailing lists, blogs, and bulletin boards),Defence Scientist,Direct Support, Dust Storm (METAR Code)
DSA- (U.S.) Defense Support Activities,Division Support Area
DSAA- (U.S.) Defense Security Assistance Agency,Driving Schools Association of the Americas,DECT Standard Authentication Algorithm
DSAS, Disney Sing Along Songs
DSB, (U.S.) Defense Science Board
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
DSCS, U.S. Defense Satellite Communications System
DSCSOC, DSCS Operations Center
DSD, Defence Studies Department (King's College, London)
DSDS, Deutschland sucht den Superstar (German, "Germany Seeks the Superstar"), the German version of the Idol series
DSE, Dry Sheep Equivalent
DSG,Direct-Shift Gearbox
DSID, Dismounted Soldier Identification System
DSL, Digital Subscriber Line
DSLR, Digital single-lens reflex (camera)
DSM, Diagnostic and Statistical Manual of Mental Disorders
DSN, Deep Space Network
DSO, Distinguished Service Order (British military decoration)
dsp, decessit sine prole (Latin, "died without issue"),genealogy short-hand
dspl, decessit sine prole legitima (Latin, "died without legitimate issue")
dspm, decessit sine prole mascula [superstite] (Latin, "died without surviving male issue" )
dspml, decessit sine prole mascula legitima (Latin, "died without legitimate male issue")
dspms, decessit sine prole mascula superstite (Latin, "died without surviving male issue")
dsps, Decessit sine prole superstite (Latin, "died without surviving issue")
DSP- Defense Standardization Program,Defense Support Program,Digital Signal Processing
DSTL, British Defence Science and Technology Laboratory
dsvp,d.s.v.p. decessit sine vitae patria (Latin, "died within fathers lifetime")
DSWA, (U.S.) Defense Special Weapons Agency
DTA, Dental Technologists Association
DTD, Digital Terrain Data
DTE, Data Terminal Equipment,Down To Earth
DTED, Digital Terrain Elevation Data ("dee-ted")
DTG, Date-Time Group
DTH, Direct To Home (television)
DTI, UK Department of Trade and Industry
DTIC, (U.S.) Defense Technical Information Center
DTL, Diode-Transistor Logic (electronics)
DTM- Deutsche Tourenwagen Masters (German, "German Touring Car Masters",a current motor racing series),Deutsche Tourenwagen Meisterschaft (German, "German Touring Car Championship",a defunct motor racing series)
DTMF, Dual-tone multi-frequency signaling
DTLOMS, Doctrine, Training, Leader development, Organization, Materiel, and Soldier (mnemonic)
DTO, Disruptive Technology Office (was ARDA)
DTOMLS, Doctrine, Training, Organization, Materiel, Leader and Soldier development (mnemonic)
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
DUMBO, Down Under the Manhattan Bridge Overpass (Brooklyn neighborhood)
DUSD, (U.S.) Deputy Under-Secretary of Defense
dv, Dhivehi language (ISO 639-1 code)
DV- Daily Value (FDA food guide),Deo volente (Latin, "God willing")
DVD, Digital Versatile Disk (was Digital Video Disk)
DVLC, UK Driver and Vehicle Licencing Centre
dvm, decessit vita matris (Latin, "died in the lifetime of the mother")
DVM, Doctor of Veterinary Medicine
DVO, Direct View Optics
DVOM,Digital Volt-Ohm Meter
DVP,various meanings (disambiguation page)
dvp, decessit vita patris (Latin, "died in the lifetime of the father")
dvu, decessit vita uxoris (Latin, "died in the lifetime of spouse")
DW, Drum Workshop
DWG, Divisional Wargame (military simulation)
DWI, Dance With Intensity,Danish West Indies,Diffusion-weighted imaging,Direct water injection,Disaster Welfare Inquiry,Drinking Water Inspectorate,Driving While Intoxicated/Impaired
DWM, Doctor Who Magazine
DWIM, Do What I Mean
DWTS, Dancing with the Stars
DWW, Down with Webster
DX- Dexterity (role-playing games), DeXtrorphan,Distant (radio), D-Generation X (professional wrestling stable)
DXA, Dual-energy X-ray Absorptiometry
DXM, DeXtroMethorphan
Dy, Dysprosium
DY, Dahomey (ISO 3166 digram; obsolete since 1977)
dz, Dzongkha language (ISO 639-1 code)
DZ, Algeria (ISO 3166 digram),Drizzle (METAR Code), Drop Zone
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)
EDECSIM, Extended Directed Energy Combat Simulation
EDGAR, Electronic Data Gathering, Analysis, and Retrieval (U.S. Securities and Exchange Commission filings database)
EDH, Eastman Dental Hospital
EDS- Electronic Data Systems,Electronic Differential System
EDSA, Epifanio de los Santos Avenue (a major thoroughfare in Manila with great significance to post-1980 Philippines history)
EDT, Eastern Daylight Saving Time (UTC−4 hours)
EDTA- Electric Drive Transportation Association, EthyleneDiamineTetraAcetic acid,EE[edit]
ee, Ewe language (ISO 639-1 code)
EE- Estonia (ISO 3166 digram; from the country's native name of Eesti), Electrical engineering,Electrical Engineer,E&E, Escape and Evasion (training)
EEC, European Economic Community (predecessor of the EU)
EHA- Education for All Handicapped Children Act (U.S. federal legislation; since superseded by the Individuals with Disabilities Education Act), Emotional Health Anonymous
EHF, Extremely High Frequency
EHR, Equipment History Record
Ei, Exbi
EI, Ireland (FIPS 10-4 country code; from Éire)
EIA, Environmental Impact Assessment
EIAH,Environnements Informatiques pour l'Apprentissage Humain
EIAH,Encyclopedia of Iranian Architectural History
EIC,East India Company
EICS,East India Company's Service
eID,electronic ID
EIRP, Effective Isotropic Radiated Power
EIS, Environmental Impact Statement
EJ, Exajoule
EK, Equatorial Guinea (FIPS 10-4 country code),Exakelvin
EKG, Electrocardiogram (from German Elektrokardiogramm)
EKMS, Electronic Key Management System
el, Greek language (ISO 639-1 code)
EL, Exalitre
ELF-(a/i) Earth Liberation Front,Endangered Language Fund,Eritrean Liberation Front,Executable and Linkable Format,Extremely Low Frequency
ELINT, Electronic Intelligence
ell, Greek language (ISO 639-2 code)
ELL, English Language Learner
ELM, Edge-Localised Mode (plasma physics)
ELO, Electric Light Orchestra
ELP- Emerson, Lake & Palmer,European Left Party
ELSS, Emergency Life Support Stores
ELT, Emergency Locator Transmitter
Em, Exametre
EM, ElectroMagnetism/ElectroMagnetic
EMA,(i/a) European Medicines Agency
Embraer, Empresa Brasileira de Aeronáutica (Portuguese, "Brazilian Aeronautics Company")
EMC- Electric Membership Corporation,Electromagnetic Compatibility,Electro-Motive Corporation,European Muon Collaboration,Evergreen Marine Corporation
EMCON, (Electromagnetic) Emissions Control
EMD- General Motors Electro-Motive Division,Engineering and Manufacturing Development,European Missile Defence
EMDG, Euro-Missile Dynamics Group
EMDR, Eye Movement Desensitisation and Reprocessing
EMU, Electric Multiple Unit,a method of connecting self-propelled railway vehicles together to form a train under the control of one driver.
en, English language (ISO 639-1 code)
EN- Corps of Engineers, Estonia (FIPS 10-4 country code),Exanewton
ENCODE, Encyclopedia of DNA Elements (human genome data project)
ENE, East North-East
eng, English language (ISO 639-2 code)
ENG, England (FIFA trigram; not eligible for an ISO 3166 or IOC trigram)
ENSATT, École nationale supérieure des arts et techniques de théâtre (French, "Higher National School of Theatrical Arts and Techniques")
ENT, Ear, Nose and Throat
ENTEC, Euro NATO Training Engineer Centre
ENVL, Envelope
ENY, Enemy
eo, Esperanto language (ISO 639-1 code)
EO- Electro-Optics,Engagement Operations
EOD, Explosive Ordnance Disposal
EOG, ElectroOculoGraphy
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
EOSAT, Earth Observation Satellite
EOSDIS,(a/i) Earth Observation Satellite Data and Information System
EOTS- Electro-Optical Tactical Sensor,(a/i) Eye Of The Storm (World of Warcraft)
EPCOT, Experimental Prototype Community Of Tomorrow
EPCR- Endothelial protein C receptor,European Professional Club Rugby
EPFL, École polytechnique fédérale de Lausanne (French, "Lausanne Federal Institute of Technology")
EPGS, EOS Polar Ground Sites
EPIRB,(a/i) Emergency Position Indicating Radio Beacon
EPL, English Premier League
EPLRS, Enhanced Position Location Reporting System ("ee-plarz")
epo, Esperanto language (ISO 639-2 code)
EPO- Ellinikí Podosferikí Omospondía (Greek Ελληνική Ποδοσφαιρική Ομοσπονδία, translated as "Hellenic Football Federation"),European Patent Organisation or its main organ, the European Patent Office, Erythropoietin
EPOS, Electronic Point Of Sale
EPPA, Employee Polygraph Protection Act
EPR, European Pressurised [Nuclear] Reactor
EPW- Earth Penetrator Weapon/Warhead,Economic and Political Weekly (Indian publication),Enemy Prisoner of War,EQ[edit]
EQ, Emotional Quotient
EQG, Equatorial Guinea (FIFA trigram, but not IOC or ISO 3166)
Er, Erbium
ER- Emergency Room, Eritrea (ISO 3166 digram; FIPS 10-4 country code)
ERA- Earned run average,Engineering Research Associates,Equal Rights Amendment,English Racing Automobiles,European Railway Agency
ERCIM,(a/i) European Research Consortium for Informatics and Mathematics
ERI, Eritrea (ISO 3166 trigram)
ERLAWS, Eastern Ruapehu Lahar Alarm and Warning System
FARC, Fuerzas Armadas Revolucionarias de Colombia (Spanish, "Revolutionary Armed Forces of Colombia")
FARDC, "Military of the Democratic Republic of the Congo
FARP, Forward Arming and Refuelling Point / Forward Area Rearm/refuel Point
fas, Persian language (ISO 639-2 code)
FAS, Federation of American Scientists,Fetal Alcohol Syndrome
FASCAM, Family of Scatterable Mines[1]
FASD, Fetal Alcohol Spectrum Disorder
FASEB,(a/i) Federation of American Societies for Experimental Biology
FAT, Field Artillery Tractor,File Allocation Table
FAVS, Future Armoured Vehicle System
FAW, Football Association of Wales
FB,Facebook, An on-line social network
FBCS, Fellow of the British Computer Society
FBI, Federal Bureau of Investigation
FBIS, Foreign Broadcast Information Service
FBIDST, Fellow of the British Institute of Dental and Surgical Technologists
FBM, Board foot
FBR- Fast Breeder Reactor,Foundation for Biomedical Research,Friedman, Billings, Ramsey (now known as Arlington Asset Investment)
FBS-Federal Bureau of Statistics (Pakistan),Fetal bovine serum,Football Bowl Subdivision (U.S. college football),Fukuoka Broadcasting Corporation,FC[edit]
fC, Femtocoulomb
FC- Fire Control,Football Club, Funnel Cloud (METAR Code)
FCA- Fellowship of Christian Athletes,Fiat Chrysler Automobiles,Fraction of Combat Active forces
FCC, U.S. Federal Communications Commission
FCE, First Certificate in English
FCF, Financial Free Cash Flow
FCLA,Fraud Claims Law Associate
FCM- Federation of Canadian Municipalities,Fogarty's Cove Music
FCO, UK Foreign and Commonwealth Office
FCS- Football Championship Subdivision (U.S. college football),Future Combat System
FCW, Florida Championship Wrestling
FCZ, Forward Combat Zone
FD, Falun Dafa
FDA, Food and Drug Administration (U.S.)
FDC, Federal Detention Center (U.S.),Fire Direction Centre
FDDI, Fibre Distributed Data Interface
FDBK,(I) Feedback
FDR, Flight Data Recorder,Franklin Delano Roosevelt
Fe, Iron (Latin Ferrum)
FE, Fully Exposed (armoured vehicle target, as opposed to Hull-Down)
FEAR, First Encounter Assault Recon,False Evidence Appears Real
FEAST,(a/i) Forum for European-Australian Science and Technology Cooperation
FEATS, Festival of European Anglophone Theatrical Societies link title
FEB- Federación Española de Baloncesto (Spanish, "Spanish Basketball Federation"),Federatie Eredivisie Basketball (Dutch, "Federation Honorary Division (of) Basketball"), the former name of the basketball competition now known in Dutch by the English-language Dutch Basketball League,Força Expedicionária Brasileira (Portuguese, "Brazilian Expeditionary Force")
FEBA, Forward Edge of the Battle Area
FED,(a/i) Field emission display
FEDEP, Federation Development Process (Simulation)
FEF, Frontal Eye Field (neurophysiology)
FEI, Fédération équestre internationale (French, "International Federation for Equestrian Sports")
FEMA-(a/i) Farm Equipment Manufacturers Association,(a/i) U.S. Federal Emergency Management Agency,Fire Equipment Manufacturers' Association
FEMEXFUT, Federación Mexicana de Fútbol Asociación (Spanish, "Mexican Association Football Federation")
FENAFUTH, Federación Nacional Autónoma de Fútbol de Honduras (Spanish, "National Autonomous Football Federation of Honduras")
FENS,(a/i) Federation of European Neuroscience Societies
FEP, Firepower Enhancement Program,Fleet satellite (FLTSAT) Extremely high frequency (EHF) Package
FEPAFUT, Federación Panameña de Fútbol (Spanish, "Panamanian Football Federation")
FES, Flywheel Energy Storage
FEST, Frankfurt English Speaking Theatre link title
FET, Field-effect transistor
FEZ,(a/i) Fighter Engagement Zone
ff, Fula language (ISO 639-1 code)
fF, Femtofarad
FF- Final Fantasy, Firefox (Web browser)
FFA- Football Federation Australia,Pacific Islands Forum Fisheries Agency,Free-Fire Area,Fusiform Face Area,Future Farmers of America (today the National FFA Organization)
FFB, Frum From Birth (referring to an observant Jew born into a religiously observant family)
FFC, Free For Chat
FFE, Fukuoka Futures Exchange
FFF, Fédération française de football (French, "French Football Federation")
FIBA,originally Fédération internationale de basket-ball amateur (French, "International Amateur Basketball Federation"); since 1989, Fédération internationale de basket-ball
FIBUA,(i/a) Fighting In Built-Up Areas
FIC, Fellowship for Intentional Community
FID, Foreign Internal Defence
FIE, Fly-In Echelon
FIFA, Fédération internationale de football association (French, "International Association Football Federation")
FIFe, Fédération internationale féline (French, "International Feline Federation")
FIFO, First In, First Out
FIFRA, Federal Insecticide, Fungicide, and Rodenticide Act
FIG- Fédération internationale des géomètres (French, "International Federation of Surveyors"),Fédération internationale de gymnastique (French, "International Federation of Gymnastics"),Feminist Improvising Group (music ensemble)
FIGJAM, Fuck I'm Good, Just Ask Me
fij, Fijian language (ISO 639-2 code)
FILA, Fédération internationale des luttes associées (French, "International Federation of Associated Wrestling Styles"), former name of the sport governing body now known as United World Wrestling
FILO, First In, Last Out (see also LIFO)
FIMPT, Fellow of the Institute of Maxillofacial Prosthetists and Technologists
fin, Finnish language (ISO 639-2 code)
FIN, Finland (ISO 3166 trigram)
FINA,(p/a) Fédération internationale de natation (French, "International Swimming Federation")
FIPS, Federal Information Processing Standard
FIR- Final Inspection Report,Federazione Italiana Rugby (Italian, "Italian Rugby (Union) Federation")
FIRES,Fever Induced Refractory Epilepsy Syndrome or Febrile Infection-Related Epilepsy Syndrome
FIS,(a/i) Fédération internationale de ski (French "International Ski Federation")
FISA, Fédération Internationale des Sociétés d'Aviron (French, "International Federation of Rowing Associations")
FISH, Fluorescence In-Situ Hybridisation
FiST, Fire Support Team
FITS, Flexible Image Transport System
FIU, Florida International University
fj, Fijian language (ISO 639-1 code)
fJ, Femtojoule
FJ, Fiji (ISO 3166 digram; FIPS 10-4 country code)
FJD, Fiji dollar (ISO 4217 currency code)
FJI, Fiji (ISO 3166 trigram)
FJN, Financial Job Network
fK, Femtokelvin
FK, Falkland Islands (ISO 3166 digram; FIPS 10-4 territory code)
FKP, Falkland Islands pound (ISO 4217 currency code)
FKSM, Fort Knox Supplemental Manual
FKT, Fastest Known Time
fl, floruit (Latin, "living") (genealogy)
fL, Femtolitre
FL, Florida (postal symbol)
FLA, Florida, Front Line Assembly,Future Large Aircraft
FLAB, Four-letter abbreviation
FLAC,(a/i) Free Lossless Audio Codec
FLAC,(a/i) Free Legal Advice Centres
FLAK, FLugAbwehrKanone (German for "Anti-Aircraft Guns")
FLB, Forward Logistics Base
FLET,(a/i) Forward Line of Enemy Troops
FLG, Falun Gong
FLIP, Flight Information Publication
FLIR, Forward Looking InfraRed (sensor)
FLK, Falkland Islands (ISO 3166 trigram)
FLOT,(a/i) Forward Line of Own Troops
FLSA, Fair Labor Standards Act
FLQ, Front de libération du Québec (French for "Québec Liberation Front")
FLQ, Free Legal Questions
FLTSAT, Fleet Satellite
FLTSATCOM, Fleet Satellite Communication System
FLUBOS, Fat, Lazy, Useless, Bag Of Shit
FM, Factory Mutual http://fmglobal.com
fm, Femtometre
Fm, Fermium
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)
FMC- Federal Magistrates' Court (an Australian federal court, formerly FMS),Food Machinery Corporation (original name of the company now known as FMC Corporation)
FMCA, Federal Magistrates' Court of Australia (used for citing decisions of the FMC other than family law decisions)
FMCAfam, Federal Magistrates' Court of Australia: family (used for citing family law decisions of the FMC)
FME, Formal Methods Europe
FMECA, Failure Modes and Effect Criticality Analysis
FMJD, Fédération Mondiale du Jeu de Dames[2]
FMLA, Family Medical Leave Act
Fmr,Former (As in "Fmr. president")
fMRI, Functional Magnetic Resonance Imaging
FMS- Federal Magistrates Service (an Australian federal court, now FMC), Flight Management System,Foreign Military Sales
FMSF, False Memory Syndrome Foundation
FMTV, Family of Medium Tactical Vehicles
FMCG, (Fast Moving Consumer Goods)
fN, Femtonewton
FNA, Functional Needs Analysis
fo, Faroese language (ISO 639-1 code)
FO, Faroe Islands (ISO 3166 digram; FIPS 10-4 territory code), Force Operations (military),Forward Observer,Frame Optional (military symbology)
FOAD, Fuck Off And Die
FOAF, Friend Of A friend
FoB, Free On Board (shipping)
FOB,(i/a) Forward Operating Base
FOC, Full Operational Capability,First of Class
FoE, Friends of the Earth
FOGC, Federal Oil and Gas Council
FOH, Front Of House
FOIA, Freedom of Information Act
FOM, Federation Object Model
FONSI, Finding of No Significant Impact
FOO, Forward Observation Officer
FOR, Field Of Regard,Frame Of Reference
Fortran, The IBM Mathematical FORmula TRANslating System (programming language)
FOS, Florida Ornithological Society,Full Operational Status
FoS, Family of Systems
FOSE, Fallout 3 Script Extender
FOSE, Federal Office Systems Expo
FOT, Free on truck
FOTA, Fellow of the Orthodontic Technicians Association
FOTC,Flight of the Conchords
FOUO, For Official Use Only
FOV, Field Of View
FP, French Polynesia (FIPS 10-4 territory code)
FPF- Federação Portuguesa de Futebol ("Portuguese Football Federation" in that language),Final Protective Fire
fps, frames per second (motion pictures, television, computer graphics)
FPS- Fire Prevention System,First Person Shooter (computer/video games)
FOOP, Friends Of Organ Pipes (Volunteer group)
FQ, Baker Island (FIPS 10-4 territory code),French Southern and Antarctic Territories (ISO 3166 digram; obsolete 1979)
FQDN, Fully Qualified Domain Name
fr, French language (ISO 639-1 code)
Fr, Francium
FR, France (FIPS 10-4 country code; ISO 3166 digram)
fra, French language (ISO 639-2 code)
FRA- Federal Railroad Administration, France (ISO 3166 trigram)
FRAGO, Fragmentary Order (military)
FRAND, Fair, reasonable, and non-discriminatory (concept in standards-setting and intellectual property law)
FRCP- Federal Rules of Civil Procedure,Fellow of the Royal College of Physicians
FRICBM, Full Range ICBM
frr, North Frisian language (ISO 639-2 code)
FRR- Falls Road Railroad (reporting mark), Federaţia Română de Radioamatorism (Romanian, "Romanian Amateur Radio Federation"), Fix, Rebuild, Replace,Federaţia Română de Rugby (Romanian, "Romanian Rugby (Union) Federation")
FRO, Faroe Islands (ISO 3166 trigram)
FRS- Fellow of the Royal Society,U.S. Federal Reserve System
FRSA, Fellow of the Royal Society of Art
fry, West Frisian language (ISO 639-2 code)
FRY, Federal Republic of Yugoslavia
fs, Femtosecond
fS, Femtosiemens
FS- Fire Support (military), French Southern and Antarctic Territories (FIPS 10-4 territory code)
FSA- Fire Support Area,UK Food Standards Agency,Functional Solution Analysis
FSB- Federal'naya Sluzhba Bezopasnosti Rossiyskoi Federatsii (Федера́льная слу́жба безопа́сности Росси́йской Федера́ции, Russian "Federal Security Service of the Russian Federation", succeeded the FSK in 1995),Forward Support Battalion
FSC- Federal Supply Classification, Forest Stewardship Council (ecological pressure group
FSCL, Fire Support Co-ordination Line
FSE, Fire Support Element
FSF, Free Software Foundation
FSH, Follicle Stimulating Hormone
FSI, Fuel Stratified Injection
FSK, Federal'naya Sluzhba Kontrrazvedki (Федера́льная Слу́жба Контрразве́дки, Russian "Federal Counterintelligence Service", succeeded the KGB in 1991)
FSM- Federated States of Micronesia (ISO 3166 trigram), Flying Spaghetti Monster (satirical religion)
FSO- Fire Support Officer,Flotilla Staff Officer,Foreign Service Officer
FSS, Fire Support Station
FSSP, Families of Structurally Similar Proteins
FST- Finance Support Team,Finlands Svenska Television (Finland's Swedish-language television),Future Soviet Tank (Cold War era)
FSTC, Foreign Science Technology Center (now NGIC)
FSV- Fire Support Vehicle,Fisheries Survey Vessel,Flexible Sender Validation,Fort St. Vrain,Fußball und Sportverein (German "Football and Sport Association", as in FSV Mainz),FT[edit]
fT, Femtotesla
FTC, Federal Trade Commission
FTE, Full Time Equivalent
FTL, Faster Than Light
FTP, File Transfer Protocol
FTSE,(a/i) Financial Times Stock Exchange ("footsie")
FTW, For The Win (a commonly used phrase used online to indicate success) F@#K The World, Forever Together Where ever (gang slogan)
FTS, Flight Termination System used during some rocket launches
FTS, Fuck That Shit
FU, Smoke (METAR Code)
FUBAR, Fucked/Fouled Up Beyond All Recognition/Repair
FUCK, For, Unlawful, Carnal, Knowledge (Van Halen album title)
G10, Group of 10 (G7 + Belgium, Netherlands, Sweden, Switzerland; numbering 11 in fact)
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)
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)
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)
G77, Group of 77 (issued from the United Nations Conference on Commerce and Development, 1964; currently numbers 133)
Ga, Gallium,Gigaannum
GA, Gabon (ISO 3166 digram),The Gambia (FIPS 10-4 country code), Gamblers Anonymous,Georgia (postal symbol),Gigaampere,Goa (Indian state code)
GAAR, General Anti-Avoidance Rule (tax evasion)
GAB, Gabon (ISO 3166 trigram)
GABA, Gamma-AminoButyric Acid
GAD, Generalized Anxiety Disorder
GAF, Garfield and Friends
GALCIT, Guggenheim Aeronautical Laboratory, California Institute of Technology
GAO, U.S. Government Accountability Office
GAW, Global Atmospheric Watch
GB, Gabon (FIPS 10-4 country code),United Kingdom of Great Britain and Northern Ireland (ISO 3166 digram) [glamour boy 7-9/10]
GBBC, Great (Global) Backyard Bird Count
GBE, Knight/Dame Grand Cross of the Order of the British Empire
GBH- Great Bash Heel (Japanese professional wrestling stable),Gregory Bonner Hale (British design and advertising agency),Grievous bodily harm
GBP, United Kingdom pound sterling (ISO 4217 currency code)
GBR, United Kingdom of Great Britain and Northern Ireland (ISO 3166 trigram)
GBU, Glide-Bomb Unit,Global Business Unit
GC- East Germany (NATO country code; obsolete 1990), General classification (cycling),General counsel,George Cross (British civil decoration), Gigacoulomb [Grindr cruise]
GCA, Graduate in Claims Administration
GCCS,(i/a) Global Command and Control System ("geeks")
GCD,see entry
GCF, Greatest Common Factor
GCI, Ground-controlled interception
GCN, Gamma-ray burst Coordination Network
GCS, Global Coordinate System
GCSE, General Certificate of Secondary Education (UK)
gd, Scottish Gaelic language (ISO 639-1 code)
Gd, Gadolinium
GD, Grenada (ISO 3166 digram)
GDC, Game Developers Conference,General Dental Council
GDL, Game Definition Language
GDP, General Dental Practitioner (UK),Gross Domestic Product
GDR, German Democratic Republic (cf. DDR)
GDR, General Distribution Release (Microsoft Term for a software service release; between Hotfix and Service Pack)
GDW, Game Designers Workshop
Ge, Germanium
GE, General Electric,Genetic Engineering (cf. GM), Georgia (ISO 3166 digram)
GEBCO, General Bathymetric Chart of the Oceans
GEC, Great Engineering Challenge
GED, General Educational Development (high school equivalency credential in the U.S. and Canada)
GEEP, Geophysical Equipment Exploration Platform
GEL, Georgian lari (ISO 4217 currency code),Gilbert and Ellice Islands (ISO 3166 trigram; obsolete 1977)
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
GEN, Full General (four stars) in the U.S. Army
GEO, Geostationary Earth Orbit, Georgia (ISO 3166 trigram)
GEOS, Graphical Environment Operating System
GEQ, Equatorial Guinea (IOC trigram, but not FIFA or ISO 3166)
GER, Germany (IOC and FIFA trigram, but not ISO 3166)
Gestapo, GEheime STAatsPOlizei (German "secret state police")
GeV, Gigaelectron-volt
GEV, Ground Effect Vehicle
GF- French Guiana (ISO 3166 digram),Gigafarad
GFCF- Gluten-free, casein-free diet,Gross fixed capital formation
GL- Gigalitre, Graphics Language, Greenland (ISO 3166 digram; FIPS 10-4 territory code), Grenade Launcher
gla, Scottish Gaelic language (ISO 639-2 code)
GLAAD, Gay and Lesbian Alliance Against Defamation
GLAC, General Ledger Accounting Code
GLAST, Gamma-ray Large Area Space Telescope
GLBA, Gramm-Leach-Bliley Act
GLC, Gas-liquid chromatography
gle, Irish language (ISO 639-2 code)
glg, Galician language (ISO 639-2 code)
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
GM- The Gambia (ISO 3166 digram), GameMaster (role-playing),General Motors,Genetically Modified, Germany (FIPS 10-4 country code), Guru Meditation (computing)
GMAC- General Motors Acceptance Corporation, the original name of the company now known as Ally Financial,Graduate Management Admission Council,G-MAC, Great Midwest Athletic Conference
GMB- The Gambia (ISO 3166 trigram), General, Municipal, Boilermakers (and Allied Trade Union)
GmbH, Gesellschaft mit beschränkter Haftung (German, "Company with limited liability")
GMC- U.K. General Medical Council,Gospel Music Channel
GMD, Gambian dalasi (ISO 4217 currency code)
GMFSC, Ground Mobile Forces Satellite Communications
GMI- Generic Model Interface,Geometry Model Instance
gorp, granola, oats, raisins, peanuts (another name for trail mix), probably a backronym
GOSC,(a/i) General Officer Steering Committee
GOSH, Great Ormond Street Hospital
GOSP, Gas/Oil Separation Plant
GOTS, Government off-the-shelf
GOYADIN, Get Off Your Arse, Do It Now (anti-procrastination mantra)
GP, General Practitioner,General Purpose,Grand Prix, Guadeloupe (ISO 3166 digram; FIPS 10-4 territory code)
GPA, Grade Point Average
GPC, Global Path Cache
GPG, GNU Privacy Guard
GPIB, General-Purpose Instrumentation/Interface Bus
GPL, GNU General Public License
GPMP, General Purpose Macro Processor
GPO, General Post Office
GPPC, Genetics and Public Policy Center
GPR, Ground-Penetrating Radar
GPS, General Problem Solver,Global Positioning System
GPT, GEC-Plessey Telecommunications,General Purpose Technology,Get Paid To website
GPU, Gosudarstvennoye Politicheskoye Upravlenie (Russian Государственное Политическое Управление, "State Political Administration") (1922-1934),Graphics Processor Unit
GQ- Equatorial Guinea (ISO 3166 digram), Gentlemen's Quarterly (the original name of the magazine now known simply as GQ), Guam (FIPS 10-4 territory code),GR[edit]
GR, Greece (FIPS 10-4 country code; ISO 3166 digram),Hail (METAR Code)
GRAIL, Gravity Recovery and Interior Laboratory
GRAS, Generally recognized as safe (FDA list)
GRB, Gamma-Ray Burst
GRC, Greece (ISO 3166 trigram)
GRD, Grenada (ISO 3166 trigram)
GRE- Graduate Record Examination, Greece (IOC and FIFA trigram, but not ISO 3166)
grep, [search] Globally for Regular Expression, Print [lines]
GRid,Global Release Identifier, a music industry identifier from the RIAA and IFPI
GRID, Gay-Related Immune Deficiency (original name of AIDS)
GriT, Girl raised in Texas (Woman presenting firm southern traits/beliefs)
GRL, Greenland (ISO 3166 trigram)
GRN- Grenada (IOC and FIFA trigram, but not ISO 3166), Goods Received Note
grn, Guaraní language (ISO 639-2 code)
GRP, Graphite-reinforced plastic, see Carbon-fiber-reinforced polymer
GRU, Glavnoje Razvedyvatel'noje Upravlenije/Главное Разведывательное Управление (Russian, "Main Intelligence Directorate" [of the former Soviet and now Russian armed forces])
Gs, Gigasecond
GS- General Schedule (US civil service pay scale),General Support, Gigasiemens,South Georgia and the South Sandwich Islands (ISO 3166 digram)
GSR, Gun Shot Residue
GSA, U.S. General Services Administration
GSD, Graphical Situation Display
GSG- German Sport Guns,Global Scenario Group (former environmental research organization),Grenzschutzgruppe (German, "Border Guard Group" — Germany's GSG 9 counterterrorist unit was originally a special branch of the border police)
GSGB,(God send glamour boy 9-10/10)
GSK, GlaxoSmithKline [good sexual karma]
GSM- General Service Medal,Grams per Square Metre (paper thickness; properly g/m2),Ground Station Module,Groupe spécial mobile (French, "Special Mobile Group"; official expansion is now Global System for Mobile Communications)
GSN,(a/i) Game Show Network
GSO, General Services Officer (U.S. Department of State)
GSOH, Good Sense Of Humour
GSP,Georges St-Pierre (Canadian MMA fighter)
GSS, Generic Security Services
GST, Goods and Services Tax (Australia, Canada, and other countries)
GSW, Gunshot wound
GT, Gigatesla, Gran Turismo,Grand Touring, Guatemala (FIPS 10-4 country code; ISO 3166 digram)
GTA, Grand Theft Auto
GTB, Get to bed, namely to get a new job after a long time of searching, usually following a phone call
GTC, Gran Telescopio Canarias (Spanish, Canaries Great Telescope)
GTD, Getting Things Done
GTG, Got To Go (Internet chat)
GTK, Good To Know (Internet chat)
GTGN, Getty Thesaurus of Geographic Names
GTM, Guatemala (ISO 3166 trigram)
GTQ, Guatemalan quetzal (ISO 4217 currency code)
GTV, Gross Tumor Volume quetzal (ISO 4217 currency code)
gu, Gujarati language (ISO 639-1 code)
GU, Guam (postal symbol; ISO 3166 digram)
GUA, Guatemala (IOC and FIFA trigram, but not ISO 3166)
GUF, French Guiana (ISO 3166 trigram)
GUI, Graphical user interface ("goo-ey")
GUILT, Gangliated Utrophin Immuno Latency Toxin
guj, Gujarati language (ISO 639-2 code)
GULCR, Grupo de Usuarios de Linux de Costa Rica
Gulag, Glavnoye Upravleniye ispravitelno-trudovykh LAGerei i kolonii (Russian Главное Управление Исправительно—Трудовых Лагерей и колоний, "Main Directorate of Corrective Labour Camps")
GUM- Glavnyi Universalnyi Magazin (Russian Главный Универсальный Магазин, "Main Department Store"; known in Soviet times as Gosudarstvennyi Universalnyi Magazin/Государственный Универсальный Магазин, "State Department Store"), Guam (ISO 3166 trigram),Guide to the expression of Uncertainty in Measurement
GUT, Grand Unification Theory
gv, Manx language (ISO 639-1 code)
GV, Gigavolt,Guinea (FIPS 10-4 country code)
GW, Games Workshop,Germ Warfare, Gigawatt, Guided Weapon, Guinea-Bissau (ISO 3166 digram)
GWARS, Ground Warfare System (simulation)
GWAS, Grand Western Archery Society
GWOT, Global War on Terrorism
GWS, Gulf War Syndrome,Greater Western Sydney
GXA, Global XML Web Services Architecture
GXE, Gene-enivronment interaction
GXF, General Exchange Format
GXH, IATA code of Gannan Xiahe Airport
GXL, Graph eXchange Language
GXM, Matrox Graphics eXpansion Module
GXP, Grid Exit Point, Global Xchange Programme, Indication of highest performance level on some Pontiac vehicles
GxP, Good X Practice (X can mean: clinical, manufacturing, pharmaceutical, etc.)
GXY, IATA code of Greeley-Weld County Airport
GY, Guyana (FIPS 10-4 country code; ISO 3166 digram)
GYD, Guyana dollar (ISO 4217 currency code)
GYY, Gary/Chicago International Airport (IATA Airport Code)
GZ, Gaza Strip (FIPS 10-4 territory code), Ground Zero
GZK, Greisen-Zatsepin-Kuzmin cut-off (cosmic ray energies)
h, Hecto
H, Henry,Hydrogen
ha, Hausa language (ISO 639-1 code),Hectare
HA, Haiti (FIPS 10-4 country code), High Availability
HAARP, High Frequency Active Auroral Research Program
HAART, Highly Active Anti-Retroviral Therapy
HAI, Human Awareness Institute
HAL, Hardware Abstraction Layer
HALO, High Altitude Low Opening (parachute jump)
HALT- Highly Accelerated Life Test, Hungry Angry Lonely Tired
HAM, Amateur radio operator
HANS, Head And Neck Support (device used in many race cars)
HAWK, Homing All the Way Killer (air defence system)
HAZ, Heat-Affected Zone
HAZMAT, Hazardous Materials
HBCD, HexaBromoCycloDodecane
HBCI, Home Banking Computer Interface
HBO, Home Box Office
HBR, Harvard Business Review
HBT, Heterojunction Bipolar Transistor
HBV, Hepatitis B Virus
HCCI, Homogeneous Charge Compression Ignition
HCF, Highest Common Factor
HCI, Human-Computer Interaction/Interface
HCSC, Higher Command and Staff Course
HCT, Higher Colleges of Technology, tertiary education institution in the United Arab Emirates (UAE)
HD- Henry Draper (star catalogue),Hull-Down (armoured vehicle target, as opposed to Fully Exposed),High Definition,Huntington's Disease
HDD- Hard Disk Drive,High-Density Disk
HDL, High-Density Lipoprotein
HDM, Human Decision-Making
HDMI,High Definition Multimedia Interface
HDR- Hard disk recorder,Henningson, Durham & Richardson (founders of the engineering and construction firm now known by their initials),High dynamic range, a term used in both digital imaging and 3D rendering,Hot Dry Rock (experimental geothermal technology),Human Development Report (UN publication)
HDRA, Henry Doubleday Research Association
HDTV, High-Definition Television
he, Hebrew language (ISO 639-1 code)
He, Helium
HE, High Explosive
HEAT, High Explosive Anti-Tank (ammunition)
heb, Hebrew language (ISO 639-2 code)
HEBA, Hellenic Basketball Clubs Association
HEER, High-Explosive Extended Range (ammunition)
HEIC, Honourable East India Company
HEMP, High-Altitude Electromagnetic Pulse
HEO- High Earth Orbit, Highly Elliptical Orbit
HEOSS, High Earth Orbit Space Surveillance
HEP, High-Explosive Plastic (ammunition)
HEPA,(a/i) High-Efficiency Particulate Air (filter)
her, Herero language (ISO 639-2 code)
HESH, High-Explosive, Squash-Head (ammunition)
HESV, Heavy Engineering Support Vehicle
HETT, Heavy Equipment Transporting Truck / Heavy Equipment Truck Tractor
HEU, Highly Enriched Uranium
Hewitts, Hills in England, Wales and Ireland over Two Thousand feet (with topographic prominence of at least 30 m)
Hf, Hafnium
HF, High Frequency
HFAC, Human Factors ("aytchfak")
HFE, Human Fertilisation and Embryology (UK Act)
HFE, The common-emitter current gain in a BJT transistor (also represented by βF). See: BJT
HFEA, Human Fertilisation and Embryology Authority (UK)
Hg, Mercury (Latin Hydrargyrum)
HGC, UK Human Genetics Commission
HGF, Human Growth Factor
HGTV, Home & Garden Television
HHD, humanitatum doctor (Latin, "doctor of humanities")
HHB,Ha Ha Bonk,The noise made when you laugh your head off. Used instead of LOL...
hi, Hindi language (ISO 639-1 code)
HI, Hawaii (postal symbol)
HIDACZ, High-Density Airspace Control Zone ("high dak zed/zee")
HIH, His (or Her) Imperial Highness
HIM, His (or Her) Imperial Majesty
HIMAD, High to Medium Altitude Air Defence (see also H/MAD)
HIMEZ, High Altitude Missile Engagement Zone
HIMYM,How I Met Your Mother
hin, Hindi language (ISO 639-2 code)
HIPAA, U.S. Health Insurance Portability and Accountability Act
Hipparcos, HIgh Precision Parallax COllecting Satellite
Hird, Hurd of interfaces representing depth (cf. HURD)
HiRISE, High Resolution Imaging Science Experiment
HIT, Health Information Technology
HIV, Human Immunodeficiency Virus
HIWT, Hobart Institute of Welding Technology
HJ, hic jacet (Latin, "here lies")
HJD, Heliocentric Julian Day
HK, Hong Kong (ISO 3166 digram; FIPS 10-4 territory code)
HKD, Hong Kong dollar (ISO 4217 currency code)
HKG, Hong Kong (ISO 3166 trigram)
HKS, HyperKinetic Syndrome
hL, Hectolitre
HL, Holding Line
HLA, High Level Architecture (simulation),Human Leukocyte Antigen
HLL, High-Level Language
HLN, Headline News
HLOS, High Level Output Specification
HLS, hoc loco situs (Latin, "laid in this place")
HLVW, Heavy Logistics Vehicle, Wheeled
HM, Heard Island and McDonald Islands (ISO 3166 digram; FIPS 10-4 territory code)
HMCE, Her/His Majesty's Customs and Excise (former UK government department; succeeded by HM Revenue and Customs)
HMCS- Her/His Majesty's Canadian Ship,Her Majesty's Courts Service (former UK agency; succeeded by Her Majesty's Courts and Tribunals Service)
HMD, Heard and McDonald Islands (ISO 3166 trigram)
HMF, HydroxyMethyl Furfural
HMM, Hidden Markov model
HMMWV, High Mobility Multipurpose Wheeled Vehicle ("hum-vee"; "hummer")
HOMES,the Great Lakes; Huron, Ontario, Michigan, Erie, Superior
HONY,Humans of New York, a photoblog.
HOPI, Hybrid Optical and Packet Infrastructure (see Internet2, Abilene Network)
HoReCa, Hotel, Restaurant and Catering
HORIZON, Hélicoptère d'observation radar et d'investigation sur zone (French, Zone Investigation and Radar Observation Helicopter)
HOSTAC, Helicopter Operations from Ships Other Than Aircraft Carriers
HOT, Highly Optimised Tolerance
HOTAS, Hands on throttle-and-stick
HOV, High Occupancy Vehicle
hp, horse power
HP, Hewlett-Packard,Hindustan Petroleum, Himachal Pradesh (Indian state code)
HPA, UK Health Protection Agency
HPCL, Hindustan Petroleum Corporation Limited
HPLC, High Performance Liquid Chromatography
HPT, High[er] Payoff Target
HPV, Human Papilloma Virus
HQ, HeadQuarters, Howland Island (FIPS 10-4 territory code)
HQDA, HeadQuarters, Department of the Army
hr, Croatian language (ISO 639-1 code)
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
HRBL, High-level Representation of Behavior Language (original name of the Herbal language)
HRD, Human Resource Development
HRED, (U.S. Army Research Laboratory's) Human Research and Engineering Directorate (Aberdeen Proving Ground, Maryland)
HRF, High iness Forces
HRH, His (or Her) Royal Highness
HRK, Croatian kuna (ISO 4217 currency code)
HRM, His (or Her) Royal Majesty
HRM, Human Resource Management
HRT, Hormone Replacement Therapy
hrv, Croatian language (ISO 639-2 code)
HRV- Croatia (ISO 3166 trigram), High Resolution Visible,HS[edit]
Hs, Hassium
HSBC, The Hong Kong and Shanghai Banking Corporation
HSC, Higher School Certificate
HSM, High School Musical
HSMAD, Human Science/Modeling and Analysis Data
HSN, Home Shopping Network
HSPH, Harvard School of Public Health
HSS- Health Service Support, High-Speed Steel
HSSI, High-Speed Serial Interface
HST,see entry
HSV- Herpes Simplex Virus,Hue Saturation Value (colour model),HT[edit]
ht, Haitian Creole language (ISO 639-1 code)
HT- Haiti (ISO 3166 digram), High Temperature,hoc tempore (Latin, "at this time"),hoc titulo (Latin, "under this title")
HTA, HyperText Application
HTC-High Tech Computer Corporation, original name of the company now known simply as HTC,Horry Telephone Cooperative
HTFU, Harden The Fuck Up
HTG, Haitian gourde (ISO 4217 currency code)
HTH, Hope That Helps
HTI, Haiti (ISO 3166 trigram)
HTML, HyperText Markup Language
HTR, Heated Towel Rail
HTS, High-Temperature Superconducting wire
HTTP, HyperText Transfer Protocol
HU, Hungary (ISO 3166 digram; FIPS 10-4 country code)
HUD,(i/a) Head-Up Display,Housing and Urban Development
HUF, Hungarian forint (ISO 4217 currency code)
HUHA, Head up his/her ass (Marine salute; probably a backcronym)
HUMINT, Human Intelligence (military parlance)
hun, Hungarian language (ISO 639-2 code)
HUN, Hungary (ISO 3166 trigram)
HURD, Hird of Unix-Replacing Daemons (cf. Hird)
HVU, High Value Unit (military)
HV, Upper Volta (ISO 3166 digram; obsolete 1984)
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.
HVAP, High Velocity Armour Piercing (ammunition)
HVHF,High velocity human factors
HVM, High Velocity Missile
HVO, Upper Volta (ISO 3166 trigram; obsolete 1984)
ICANN, Internet Corporation for Assigned Names and Numbers
ICAO, International Civil Aviation Organization
ICBM, Intercontinental Ballistic Missile
ICBM,I see (phonetically "c") BatMan
ICBN, International Code of Botanical Nomenclature
ICC, Integrated Command and Control,International Criminal Court,International Cricket Council,Interstate Commerce Commission,International Chamber of Commerce
ICD, Implantable Cardioverter-Defibrillator,Initial Capabilities Document,International Classification of Diseases
ICE,(i/a) In case of emergency
ICES,(a/i) International Council for the Exploration of the Sea
ICF, Intelligent Community Forum
ICHTHYS, Iesous Christos, Theou Yios, Soter (Greek, "Jesus Christ, Son of God, Savior")
ICM, Improved Conventional Munition,Integrated Collection Management,International Congress of Mathematicians,Iraq Campaign Medal
ICMP, Internet Control Message Protocol
ICNAF, International Commission for the Northwest Atlantic Fisheries (became NAFO in 1978)
ICNI, Integrated Communication, Navigation, and Identification
ICO, Intermediate Circular Orbit
ICP, Inductively coupled plasma,Insane Clown Posse
ICPE,(a/i) International Conference on Pharmacoepidemiology, the annual conference of the International Society for Pharmacoepidemiology
ICRAF, International Centre for Research in Agroforestry (a.k.a. World Agroforestry Centre since 2002)
ICRISAT,(i/a) International Crops Research Institute for the Semi-Arid Tropics
ICRL, Individual Component Repair List
ICRS, International Celestial Reference System
ICS, In-Country Support,Intelligence and Communications Systems,Interim Contractor Support
ICSI, Intracytoplasmic Sperm Injection
ICT, Information and communication technologies
ICTH, Island Closest to Heaven/Hell Final FantasyVIII
ICV, Infantry Carrier Vehicle
ICW, In Co-ordination With,Indonesia Corruption Watch,Infectious and Chemotherapeutic Waste,Insulating Concrete Wall,Integral Crystalline Waterproofing, Interactive Courseware
ICYMI, In Case You Missed It
ICZN, International Code of Zoological Nomenclature,International Commission on Zoological Nomenclature
id, Indonesian language (ISO 639-1 code)
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)
IDA- U.S. Institute for Defense Analyses,International Development Association (part of the World Bank
IDC, International Data Corporation
IDDI, I don't do initialisms (see irony)
IDE- Integrated Development Environment,Integrated Drive Electronics
IDeA, Improvement and Development Agency, the former name of Local Government Improvement and Development in the United Kingdom
IDEA- Individuals with Disabilities Education Act (U.S.),International Data Encryption Algorithm,International Design Excellence Awards
IDF- Israel Defense Forces,Intel Development Forum,International Dairy Federation
IDGAF, I don't give a fuck
IDK, I don't know
IDKIBTI,I don't know, I'm black, that's it
IDL, Interface Definition Language
IDN, Indonesia (ISO 3166 trigram)
ido, Ido language (ISO 639-2 code)
IDR, Indonesian rupiah (ISO 4217 currency code)
ie, Interlingue language (ISO 639-1 code)
IE, Indo-European languages,Internet Explorer, Ireland (ISO 3166 digram),Iced Earth
IEA, International Energy Agency
IEC, International Electrotechnical Commission
IED, Improvised Explosive Device
IEEE, Institute of Electrical and Electronics Engineers ("I triple-E")
IELTS, International English Language Testing System
IER, Information Exchange Requirement
IET, Institution of Engineering and Technology
IET,(ii) Initial Entry Training
IETF, Internet Engineering Task Force
IEW, Intelligence and Electronic Warfare
IFAB, International Football Association Board
IFAH, International Federation for Animal Health
IFAP, International Federation of Agricultural Producers
IFC, International Finance Corporation (part of the World Bank), Independent Film Channel
IFF, Identification, Friend or Foe,Individually Fresh Frozen,International Flavors and Fragrances
IFFN, Identification, Friend, Foe, or Neutral
IFO, Identified Flying Object (see also UFO)
IFOR, UN Implementation Force, Institute for Operations Research,International Fellowship of Reconciliation
IFOV, Instantaneous Field of View
IFPI, International Federation of Phonographic Industries
IFR, Instrument Flight Rules
IFRB, International Frequency Registration Board
IFV, Infantry Fighting Vehicle
ig, Igbo language (ISO 639-1 code)
IG, Inspector General
IGNOU, Indira Gandhi National Open University
IGS, International Ground Station
IGY, Israeli Gay Youth,International Geophysical Year
IHH, Idiopathic Hypogonadotropic Hypogonadism
IHO,(i/a) International Hydrographic Organization
IHOP,(i/a) International House of Pancakes, the original name of this American restaurant chain ("EYE-hop")
IHR, Institute for Historical Review
IHSI,Institutum Historicum Societatis Iesu (Jesuit Historical Institute)
ii, Sichuan Yi language (ISO 639-1 code)
II, Two (in Roman numerals)
IICA, Inter-American Institute for Cooperation on Agriculture
IIE, Innovative Interstellar Explorer
iii, Sichuan Yi language (ISO 639-2 code)
III, Three (in Roman numerals)
IIRC, If I Recall/Remember Correctly
IISS, International Institute for Strategic Studies
IIT, Illinois Institute of Technology,Indian Institutes of Technology,Indiana Institute of Technology
IJN, Imperial Japanese Navy (World War II)
IJWP, Interim Joint Warfare Publication
ik, Inupiaq language (ISO 639-1 code)
IKEA, Ingvar Kamprad (the company's founder), Elmtaryd (the farm where he was born and raised), Agunnaryd (a village and parish near the farm)
iku, Inuktitut language (ISO 639-2 code)
IL, Illinois (postal symbol),Israel (ISO 3166 digram)
ILC, International Law Commission,International Linear Collider
ILDS, Improved Landmine Detection System
ile, Interlingue language (ISO 639-2 code)
ILO, International Labour Organization
ILRI, International Livestock Research Institute
ILS, Israeli shekel (ISO 4217 currency code)
ILY, IATA code for Islay Airport (Scotland), I Love You [pronounced ILL-LEE]
IM- Isle of Man (FIPS 10-4 territory code), Instant Message (internet speech)
IMA- Intermediate Maintenance Activity,Institute of Mathematics and Applications
IMBD, International Migratory Bird Day
IMDb,Internet Movie Database
IME, In My Experience
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)
IMHO, In My Humble/Honest Opinion, cf. IMO
IML, International Mister Leather
IMLAST, International Movement for Leisure Activities in Science and Technology,see MILSET
IMNM,,Immune-mediated necrotizing myopathy a rare, but serious ADR of statins [1]
IMNSHO, In My Not So Humble Opinion
IMPAC, International Merchant Purchase Authorization Card
IMPACT, International Medical Products Anti-Counterfeiting Taskforce
IMPATT, IMPact Avalanche Transit Time diode
IMPT, Institute of Maxillofacial Prosthetists and Technologists
IMR, Inzhenernaya Mashina Razgrazhdeniya (Russian Инженерные Машины Разграждения, "Engineer Vehicle Obstacle-Clearing") †
IMRI- Industrial Membrane Research Institute,Information Management Research Institute,Institut pour le management de la recherche et de l'innovation (French, "Institute for the Management of Research and Innovation"),International Market Research Information,Intraoperative Magnetic Resonance Imaging
IMRO-Internal Macedonian Revolutionary Organization,Irish Music Rights Organisation
IMRL, Individual Material iness List
IMS- Information Management System,International Meat Secretariat,Ion Mobility Spectrometer
IMSA- Illinois Mathematics and Science Academy,International Mind Sports Association,International Motor Sports Association
IMsL, International Ms. Leather
IMT, Integrated Management Tool
IMU, International Mathematical Union
In, Indium
IN, India (FIPS 10-4 country code; ISO 3166 digram),Indiana (postal symbol),Infantry
ina, Interlingua language (ISO 639-2 code)
INA, Immigration and Nationality Act
INAS, International Near-Earth Asteroid Survey
INC, Iglesia ni Cristo (Filipino, "Church of Christ"),Indian National Congress,International Network of Crackers,Iraqi National Congress
INCITS, InterNational Committee for Information Technology Standards
IPA, India Pale Ale,International Phonetic Alphabet,Isopropyl alcohol
IPB, Intelligence Preparation of the Battlefield
IPCC, Intergovernmental Panel on Climate Change,Independent Police Complaints Commission
ipk, Inupiaq language (ISO 639-2 code)
IPL, Inferior Parietal Lobule
IPN, Instytut Pamieci Narodowej (Polish, "Institute for National Memory")
IPO, Initial Public Offering
IPR, In Progress Review,Intellectual Property Rights,Intelligence Production Requirement
IPT, Integrated Product/Project Team
IPTS, Institute for Prospective Technological Studies
IPTV, Internet Protocol TeleVision
IPW, Interrogation of Prisoners of War
iq, idem quod (Latin, "the same as")
IQ, Intelligence Quotient, Iraq (ISO 3166 digram)
IQD, Iraqi dinar (ISO 4217 currency code)
Ir, Iridium
IR, Infrared,Intelligence requirement (military), Iran (FIPS 10-4 country code; ISO 3166 digram),Iran Air (IATA alpha code) see entry for more
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)
IRAD, Internal Research and Development
IRAN,(I) Inspect and Repair As Necessary
IRAS, Infrared Astronomical Satellite
IRB, International Rugby Board
IRBM, Intermediate Range Ballistic Missile
IRC, International Red Cross,International Reply Coupon,Internet Relay Chat
IREA, Intermountain Rural Electric Association
IRL, Ireland (ISO 3166 trigram),Industrial Research Limited,Indy Racing League,In real life
IRSN, Institut de radioprotection et de sûreté nucléaire (French, "Institute for Radiation Protection and Nuclear Safety")
IRST, Infra-red Search and Track
is, Icelandic language (ISO 639-1 code)
IS- Iceland (ISO 3166 digram),Israel (FIPS 10-4 country code)
ISA- Individual Savings Account,Industry Standard Architecture,Instruction Set Architecture,International Seabed Authority
ISAAA, International Service for the Acquisition of Agri-biotech Applications
ISAF- International Sailing Federation,International Security Assistance Force
ISAR, Inverse SAR (Synthetic Aperture Radar)
ISB, Intermediate Staging Base
ISBN, International Standard Book Number (ISO 2108)
ISCCP, International Satellite Cloud Climatology Project
ISCII, Indian Standard Code for Information Interchange
ISDN,Integrated Services Digital Network
ISEF, Intel International Science and Engineering Fair
ISEN, Internet Search Environment Number
ISF, Internal Security Force
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
ISIL,(i/a) Islamic State of Iraq and the Levant
ISIS-(i/a) Institute for Science and International Security,Islamic State of Iraq and Syria
ISK, Icelandic krona (ISO 4217 currency code)
isl, Icelandic language (ISO 639-2 code)
ISL, Iceland (ISO 3166 trigram)
ISLN, International Standard Lawyer Number (used initially by LexisNexis Martindale-Hubbell)
ISM- Industrial, scientific or medical, Interstellar medium
J8, Joint Force Structure, Resources, & Assessment Directorate
J9, Joint Public Affairs Directorate (Civilian-Military Cooperation)
ja, Japanese language (ISO 639-1 code)
JA, Japan (FIPS 10-4 country code)
JAFT, Just A Field Test
JAG, Judge Advocate General Corps (military law)
JAL, Japan Airlines
JALLC, Joint Analysis and Lessons Learned Centre (NATO)
JAM, Jamaica (ISO 3166 trigram)
JAMA, Journal of the American Medical Association
JANET, Joint Academic Network
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)
JATO, Jet-Assisted Take-Off
jav, Javanese language (ISO 639-2 code)
JB, Junior Branch
JB, Jail Bait
JBFSA, Joint Blue Force Situational Awareness
JCATS, Joint Conflict And Tactical Simulation ("djay-catts")
JCDB, Joint Common Data Base
JCDS, Joint Chiefs of the Defence Staff
JCIDS, Joint Capabilities Integration and Development System
JCIET, Joint Combat Identification Evaluation Team
JCL, Job Control Language
JCMOTF, Joint Civil-Military Operations Task Force
JCP, Java Community Process
JCPM, Java Child Process Manager,Jesus Christ Prison Ministry
JCS, Joint Chiefs of Staff
JCW, Juggalo Championship Wrestling
JD- Jack Daniel's (whiskey),Julian day,Juris Doctor (Latin, "doctor of jurisprudence")
JDAM,(a/i) Joint Direct Attack Munition ("djay-dam")
JDBC, Java Data Base Connectivity
JDCC, UK Joint Doctrine and Concepts Centre, now the Development, Concepts, and Doctrine Centre, DCDC
JDEM, Joint Dark Energy Mission
JDK, Java Development Kit
JDL, Jewish Defense League
JDM- Japanese domestic market, referring specifically to automobiles and parts,Java Data Mining,Joint design manufacturing,JE[edit]
JE, Jersey (FIPS 10-4 territory code)
JEB- James Ewell Brown (Stuart),John Ellis Bush
JEDP, Jahwist, Elohist, Deuteronomist, Priestly (according to the documentary hypothesis, the sources of the Torah)
KBE, Knight Commander of the Order of the British Empire
KBO, Kuiper Belt Object
KBVB, Koninklijke Belgische Voetbalbond (Dutch for Royal Belgian Football Association)
kC, Kilocoulomb
KCK- Kansas City, Kansas,Koma Civakên Kurdistan (Kurdish, "Union of Communities in Kurdistan")
KCL, King's College London
KCMO, Kansas City, Missouri (pronounced "K-C-Moe")
KCS, Kansas City Southern Railway (AAR reporting mark)
KD, Kawasaki Disease,Kraft Dinner
KE- Kenya (FIPS 10-4 country code; ISO 3166 digram), Kinetic Energy,Knowledge Engineering
KEDO, Korean Peninsula Energy Development Organization
KEN, Kenya (ISO 3166 trigram)
KERA, Kentucky Education Reform Act (of 1990)
kerma, Kinetic Energy Released in MAterial / in MAtter / per unit MAss
KES- Kenyan shilling (ISO 4217 currency code), Killer Elite Squad (Japanese professional wrestling stable)
KESR, Kent and East Sussex Railway.
KET- Kentucky Educational Television, Key English Test,KF[edit]
kF, Kilofarad
KFC, Kentucky Fried Chicken
KFOR, UN Kosovo Force
KFUPM,King Fahd University of Petroleum & Minerals
kg, Kilogram,Kongo language (ISO 639-1 code)
KG, Kyrgyzstan (FIPS 10-4 country code; ISO 3166 digram)
KGB, Komitet Gosudarstvennoy Bezopasnosti (Russian "Committee for State Security") (1954-1991)
KGO,Knight of the Guelphic Order of Hanover
KGS, Kyrgyz som (ISO 4217 currency code)
KGZ, Kyrgyzstan (ISO 3166 trigram)
kH, Kilohenry
KH, Cambodia (ISO 3166 digram)
khm, Khmer language (ISO 639-2 code)
KHL, Kontinental Hockey League
KHM, Cambodia (ISO 3166 trigram)
KHR, Cambodian riel (ISO 4217 currency code)
KHz, Kilohertz
ki, Gikuyu language (ISO 639-1 code)
Ki, Kibi
KI, Kiribati (ISO 3166 digram)
KIA, Killed In Action
KIDS, Knowledge-based Integrated Design System
kik, Gikuyu language (ISO 639-2 code), common typo for LOL
kin, Kinyarwanda language (ISO 639-2 code)
kir, Kyrgyz language (ISO 639-2 code)
KIR, Kiribati (ISO 3166 trigram)
KISS, Keep It Simple, Stupid / Keep It Short and Simple,Korean Intelligence Support System
KITECH, Korean Institute of Industrial Technology
KITT, Knight Industries Two Thousand,Knight Industries Three Thousand
KIT,Keep In Touch
kj, Kuanyama language (ISO 639-1 code)
kJ, Kilojoule
kk, Kazakh language (ISO 639-1 code)
kK, Kilokelvin
KK- Kabushiki kaisha (Japanese for "Stock Company", found in the legal names of countless Japanese corporations),Košarkarski klub (Slovenian), Košarkaški Klub (Croatian and Serbian in Latin script), Кошаркашки клуб (Serbian Cyrillic), Krepšinio Klubas (Lithuanian); all mean "Basketball Club", as in KK Union Olimpija, KK Cibona, KK Partizan, and KK Atletas
KKK, Ku Klux Klan
kl, Kalaallisut language (ISO 639-1 code)
kL, Kilolitre
KL, Kuala Lumpur, Kerala (Indian state code)
KLENOT, KLEť Observatory Near Earth and Other unusual objects observations Team and Telescope
KLS- Kleine-Levin syndrome,Košarkaška liga Srbije (Latin) or Кошаркашка лига Србије (Cyrillic) (Serbian, "Basketball League of Serbia"),Kuala Lumpur Sentral,KM[edit]
km, Khmer language (ISO 639-1 code),Kilometre
KM, Comoros, Knowledge Management
KMF, Comoro franc (ISO 4217 currency code)
KMFDM, Kein mitleid für die mehrheit (German "No pity for the majority" music band)
KMR, Kwajalein Missile Range
kn, Kannada language (ISO 639-1 code)
kN, Kilonewton
KN, Democratic People's Republic of Korea (FIPS 10-4 country code),Saint Kitts and Nevis (ISO 3166 digram)
KNA, Saint Kitts and Nevis (ISO 3166 trigram)
KNVB, Koninklijke Nederlandse Voetbal Bond (Dutch for Royal Dutch Football Association)
LDMOS,(i/a) Laterally diffused MOS transistor ("ell-dee-moss")
LDS- Latter-day Saint (also "Latter Day Saint"); also used as an abbreviation by The Church of Jesus Christ of Latter-day Saints,Liberal Democracy of Slovenia
LDV, Local Defence Volunteers (British Home Guard)
LITAS, Low Intensity Two Colour Approach System (aviation)
LIVE, Liquid Inertial Vibration Eliminator
LJ- La Jolla,Larry Johnson (both the American football and basketball players of that name),LaserJet (HP printer brand),Library Journal,Linux Journal,LiveJournal,Ljubljana,Lord Justice of Appeal, Sierra National Airlines (IATA code)
LJJ, Lord Justices of Appeal
LK, Sri Lanka (ISO 3166 digram)
LKA, Sri Lanka (ISO 3166 trigram)
LKL, Lietuvos krepšinio lyga (Lithuanian, "Lithuanian Basketball League")
LKR, Sri Lanka rupee (ISO 4217 currency code)
LKR4, Linkwitz-Riley 4th order (audio crossover type)
LL, Land Line (telephone),Last Log,Late Latin,Left Limit,Lex Luthor (Superman character),Light Line,Limited Liability,Linked List,Little League
LLAD, Low Level Air Defence
LLB, Legum Baccalaureus (Latin: Bachelor of Laws)
LLC, Limited Liability Company
LLGC, Llyfrgell Genedlaethol Cymru (National Library of Wales),London Lesbian and Gay Centre
LLLTV, Low-Light Level Television
LLNL, Lawrence Livermore National Laboratory
LLP, Limited Liability Partnership
LLTI, Limiting Long-Term Illness,Long Lead Time Item
LLTR, Low-Level Transit Route
LMAO, Laughing My Ass Off (Internet shorthand)
LMFAO, Laughing My F**king Ass Off (Internet shorthand, electro-hop duo)
LMB, Lick My Balls
LMN,(a/i) Lifetime Movie Network
LMS, London Mathematical Society,London, Midland and Scottish (Railway)
LMS, Like My Status (Internet shorthand)
LMV,() Light Motor Vehicle
ln- Lingala language (ISO 639-1 code),Natural logarithm
LNB- Liga Nacional de Básquet (Rioplatense Spanish, "National Basketball League"; top Argentine league),Ligue Nationale de Basketball (French, "National Basketball League"; the organization that operates France's top two leagues, and the unrelated top league of Switzerland),Low-Noise Block (Satellite dish)
LNER, London and North Eastern Railway
LNG, Liquefied Natural Gas
LNO, Liaison Officer
LNR, Ligue Nationale de Rugby (French, "National Rugby League")
lo, Lao language (ISO 639-1 code)
LO, Slovakia (FIPS 10-4 country code)
LOA, Limit Of Advance
LOC,(a/i) Level of Operational Capability,Limited Operational Capability,Lines Of Code,Lines Of Communication,see entry
Mahasz, Magyar Hanglemezkiadók Szövetsége (Hungarian, "Association of Hungarian Record Companies")
mal, Malayalam language (ISO 639-2 code)
MALD, Miniature Air-Launched Decoy
MANPADS, MAN-Portable Air Defence System
MANPRINT, MANpower and PeRsonnel INTegration
MAO-(i/a) Molėtų astronomijos observatorija (Moletai Astronomical Observatory), MonoAmine Oxidase
MAOI, Monoamine oxidase inhibitor
MAPS, Monitoring Avian Productivity and Survivorship
MAQS, Museum of the American Quilter's Society ("max")
mar, Marathi language (ISO 639-2 code)
MAR, Morocco (ISO 3166 trigram)
MarBEF, Marine Biodiversity and Ecosystem Functioning
MARC- MAchine able Cataloging (often also defined as MAchine able Code),Mailing list ARChive,Massachusetts Animal Rights Coalition,Mid-America Regional Council
MARCENT, United States Marine Forces Central Command
MARFORCC, Marine Force Component Commander
MARRS, Martyn Young, Alex Ayuli, Rudy Tambala, Russell Smith, and Steve Young (British electronic music act)
MAS, NATO Military Agency for Standardization
MASAS, Monte Agliale Supernovae and Asteroid Survey
Maser, Microwave Amplification by Stimulated Emission of Radiation
MASH, Mobile Army Surgical Hospital
MASINT, Measurement And Signature Intelligence
MATREX, Modeling Architecture for Technology, Research & EXperimentation
MATS, U.S. Military Air Transport Service (1948-1966)
MAVS,(a/i) Mobile Artillery Vehicle System
MAW, Malawi (IOC trigram, but not FIFA or ISO 3166)
MBE, Member of the Order of the British Empire, Multistate Bar Examination (U.S.)
MBIDST, Member of the British Institute of Dental and Surgical Technologists
MBM, Meat and Bone Meal
mbsf,metres below sea floor,[1][2] a depth convention used in paleontology and oceanography
MBT, Main Battle Tank
MBTA, Massachusetts Bay Transportation Authority,Migratory Bird Treaty Act (U.S.)
MBTI, Myers-Briggs Type Indicator
mC, Millicoulomb
MC- Macau (FIPS 10-4 territory code), Master of Ceremonies, Megacoulomb, Military Cross (bravery award), Monaco (ISO 3166 digram), Mortar Carrier, Eleven Hundred (in Roman numerals)
MCA- Master of Computer Applications,Micro Channel Architecture,MultiChannel Analyzer,Music Corporation of America, the original name of the now-defunct MCA Inc.
MCC- Marylebone Cricket Club,Mission Control Center,Motor Control Center,Movement Control Centre
MCD- Minimal Cerebral Dysfunction,Minor civil division (U.S. Census term)
MCDL, Model Composition Definition Language
MCFT, Modified Compression Field Theory
MCG, Melbourne Cricket Ground
MCI, Microwave Communications, Inc.
MCIS, Mellon Collie and the Infinite Sadness
MCM, Mine Counter-Measures
MCMV, Mine Counter-Measure Vessel
MCNC- Microelectronics Center of North Carolina, Mixing Condensation Nucleus Counter
MCO- Major Combat Operation, Monaco (ISO 3166 trigram), Movement Control Officer
MCTIS, Mounted Co-operative Target Identification System
MCU- Marine Corps University,Marvel Cinematic Universe,Medium close-up (camera direction in British TV scripts), Microcontroller unit, Milk clotting units,Ming Chuan University,Minimum coded unit (digital imaging),Multipoint control unit,Municipal Credit Union (New York),MD[edit]
Md, Mendelevium
MD- Fifteen Hundred (in Roman numerals),Maryland (postal symbol), Medicinae Doctor (Doctor of Medicine/Medical Doctor),Mentioned in Dispatches (military), Moldova (FIPS 10-4 country code; ISO 3166 digram)
MDA- Main Defensive Action/Area, Moldova (ISO 3166 trigram),Muscular Dystrophy Association
MDF- Main distribution frame,Medium-density fiberboard
MDG- Madagascar (ISO 3166 trigram), UN Millennium Development Goal
MDL, Moldovan leu (ISO 4217 currency code)
MDM- Michigan Dartmouth MIT telescope consortium,Master data management
MDMA, MethyleneDioxy-MethylAmphetamine (also known as "Ecstasy")
MDNA, Madonna's 12th studio album title (2012)
MDO, Membership Driven Organisation
MDP, Markov Decision Process
MDT, Mountain Daylight Time (UTC-6 hours)
MDV, Maldives (ISO 3166 trigram)
MDW- Chicago Midway International Airport in Chicago (IATA airport code), Military District of Washington, Minnesota, Dakota and Western Railway (AAR reporting mark),ME[edit]
Me, Messerschmitt
ME, Maine (postal symbol), Mechanical engineer[ing],Medical examiner,Middle East, Middle East Airlines (IATA code), Memory Effect,Myalgic Encephalomyelitis
MEA, Maine Educational Assessment,Middle East Airlines,Millennium Ecosystem Assessment,Minimum en route altitude,Mono-ethanol Amine,Multilateral Environmental Agreement
MEAC, Mid-Eastern Athletic Conference (ME-ac)
MEC- Maine Central Railroad,Manta, Ecuador (IATA location identifier), Model European Council,Mountain East Conference,Mountain Equipment Co-op
MECCA, Milwaukee Exposition Convention Center and Arena, a former name for the sports venue now known as UW-Milwaukee Panther Arena
MECO, Main engine cutoff (NASA code for point in Space Shuttle assent when three main engines are shut down prior to External Tank (ET) separation)
MEDEVAC, Medical evacuation
MEDLI, Mars Science Laboratory Entry, Descent, and Landing Instrumentation, Medical & Scientific Libraries of Long Island, Model for Effluent Disposal using Land Irrigation
MEDS, Mission Essential Data Set
MEF, U.S. Marine Expeditionary Force,Minimum essential facility,Mission essential force
MEG, MagnetoEncephaloGraphy
MEI, Matsushita Electric Industrial Co., Ltd.
MEK, Magyar Elektronikus Konyvtar,Message encryption key,Methyl ethyl ketone, Mujahideen al-Khalq
MEO, Medium earth orbit,Most efficient organization
MEP, Mechanical Electrical Plumbing,Member of the European Parliament,Missions étrangères de Paris (French for "Paris Foreign Missions"),Model European Parliament
MILES, Multiple Integrated Laser Engagement System (live combat simulation)
MILF- Moro Islamic Liberation Front, Mother I'd Like to Fuck
MILSATCOM, Military Satellite Communications
MILSET, Mouvement International pour le Loisir Scientifique Et Technique (French, "International Movement for Leisure Activities in Science and Technology")
MILSTRIP, Military Standard Requisitioning and Issue Procedure DLMSO MILSTRIP Manual
MIMAROPA, Mindoro, Marinduque, Romblon, Palawan (a region in the Philippines)
MIMOSA, MIcroMeasurements Of Satellite Acceleration
MIMPT, Member of the Institute of Maxillofacial Prosthetists and Technologists
MIS- Management Information Systems,Museum Information System
MISREP, Mission Report
MISSI, Multilevel Information System Security Initiative
MIT- Massachusetts Institute of Technology,methylisothiazoline,Milli Istihbarad Teskilati (Intelligence service of Turkey)
MITL, Man-In-The-Loop
MITS,see entry
mJ, Millijoule
MJ- Megajoule, Michael Jordan
MJD, Modified Julian Day
MJP, Military Judgement Panel
mk, Macedonian language (ISO 639-1 code)
mK, Millikelvin
MK- Air Mauritius (IATA code),Macedonia (ISO 3166 digram; FIPS 10-4 country code), Mandalskameratene (Norwegian football club), Megakelvin, Milton Keynes,Missionary Kids,Mortal Kombat (1992 video game),Mortal Kombat (2011 video game)
mkd, Macedonian language (ISO 639-2 code)
MKD- Macedonian denar (ISO 4217 currency code),Republic of Macedonia (ISO 3166 trigram)
MKG, Michael Kidd-Gilchrist (American basketball player)
MKO, Mojahedin-e-Khalq Organization (Persian, "People's Mujahedin of Iran")
MKS- Metre-Kilogram-Second (system of units), MKS Inc. software company
MKSA, Metre-Kilogram-Second-Ampere (system of units)
ML- Mali (FIPS 10-4 country code; ISO 3166 digram), Maximum Likelihood, Megalitre
MLA- Martial Law Administration of Bangladesh,Master of Landscape Architecture,Medical Library Association,Member of Legislative Assembly,Modern Language Association,Mutual legal assistance treaty,Myelosis Leucemica Acuta
MLB, Major League Baseball
MLC, Member of the Legislative Council (in India)
MLE, Maximum likelihood estimation
mlg, Malagasy language (ISO 639-2 code)
MLHW, Mean Lower High Water (nautical charts)
MLI, Mali (ISO 3166 trigram)
MLK, Martin Luther King, Jr.
MLL, Major League Lacrosse
MLLW, Mean Lower Low Water (nautical charts)
MLP,My Little Pony
MLRS, Multiple-Launch Rocket System
MLS- Major League Soccer,Multiple Listing Service
MLSE- Maple Leaf Sports & Entertainment (owner of several Toronto-based sports teams),Maximum likelihood sequence estimation
MLSR, Missing, Lost or Stolen Report
mlt, Maltese language (ISO 639-2 code)
MLT, Malta (ISO 3166 trigram)
MLVW, Medium Logistics Vehicle, Wheeled
MLW, Mean Low Water (nautical charts)
MLWN, Mean Low Water Neaps (nautical charts)
MLWS, Mean Low Water Springs (nautical charts)
mm, Millimetre
Mm, Megametre
MM, Military Medal, Myanmar (ISO 3166 digram),Two Thousand (in Roman numerals)
MMORPG, Massively multiplayer online role-playing game
MMPR,Mighty Morphin Power Rangers
MMR, Measles, Mumps and Rubella vaccine, Myanmar (ISO 3166 trigram)
MMS, Multimission Modular Spacecraft
MMU, Manchester Metropolitan University, Manned Manoeuvring Unit
MMW, Millimetre Wave (radar, from "mm Wave")
mn, Mongolian language (ISO 639-1 code)
mN, Millinewton
Mn, Manganese
MN, Meganewton,Minnesota (postal symbol),Monaco (FIPS 10-4 country code),Mongolia (ISO 3166 digram)
MNB, Multinational Brigade
MND, Motor Neurone Disease, Multinational Division
MNE, Montenegro (ISO 3166 trigram)
MNG, Multiple-image Network Graphics, Mongolia (ISO 3166 trigram)
MNMF, Multi-National Maritime Force
MNP, Northern Mariana Islands (ISO 3166 trigram)
MNS, Mission Needs Statement
MNT, Molecular nanotechnology, Mongolian tugrik (ISO 4217 currency code)
mo, Moldovan language (ISO 639-1 code)
Mo, Molybdenum
MO, Macau (ISO 3166 digram), Medical Officer, Missouri (postal symbol), modus operandi (Latin, "mode of operation"), Morocco (FIPS 10-4 country code) [mutual oral]
MOA,Museum of Art (Brigham Young University)
MOAB, Massive Ordnance Air Blast (official),Mother Of All Bombs (slang)
MOB, Man Over Board,Marching Owl Band,Movable Object Block
MOC, Macedonian Orthodox Church,Measure Of Capability,Mission Operations Centre,My Own Creation (Lego)
MOCAS, Mechanization Of Contract Administration Services
MoD, Ministry of Defence (United Kingdom) and various other countries
MOD, Magneto-optical disc,Masters of Deception,Minimum Object Distance,Multiple Organ Dysfunction
MoDAF, Ministry of Defence Architecture Framework ("moh-daff")
MOJWA, Movement for Oneness and Jihad in West Africa
mol, Moldovan language (ISO 639-2 code),mole (unit)
MOLO, Mobile Other Licensed Operator (UK)
MoM, Multiple of the median
MOM, Message Oriented Middleware
MOM, Master's Degree in Oriental medicine
MoMA, Museum of Modern Art (NYC)
mon, Mongolian language (ISO 639-2 code)
MOND, Modified Newtonian Dynamics
MOO, Measure Of Outcome
MOOTW, Military Operations Other Than War ("moot-double-you")
MOP, Macau pataca (ISO 4217 currency code), Measure Of Performance
MOPE, Ministry of Population and Environment (Nepal),Most Oppressed People Ever (politics)
MOPP,(i/a) Mission-Oriented Protective Posture
MORP, Meteorite Observation and Recovery Project
MORS, Military Operations Research Society
MOS, Military Occupational Specialty, Mit Out Sound / Motor Only Sync, Mobile Object System,Model Output Statistics,Multiplayer Online Services, Mean Opinion Score
MOSS, MObile Submarine Simulator, Moving Object Support System
MOT, Ministry of Transport (UK)
MOTA, Member of the Orthodontic Technicians Association
MOTESS, Moving Object and Transient Event Search System
MOTO, Mail Order / Telephone Order,Master of the obvious
MOU, Memorandum Of Understanding
MOUT, Military Operations in Urban[ized] Terrain
MOVES, Modeling, Virtual Environments, and Simulation Institute
MOW, Maintenance of way (also MW)
MOZ, Mozambique (ISO 3166 trigram)
MP, Magic points, Mauritius (FIPS 10-4 country code), Member of Parliament,Military Police,Missouri Pacific, Northern Mariana Islands (postal symbol; ISO 3166 digram)
mPa, Millipascal
MPa, Megapascal
MPA, Maritime Patrol Aircraft,Master of Public Administration
MPAA, Motion Picture Association of America
MPC, Minor Planet Center,Minor Planet Circular
MPC, Military Payment Certificate
MPEC, Minor Planet Electronic Circular
MPEG, Motion Pictures (Coding) Experts Group
MPEV, Multi-Purpose Engineering Vehicle
MPF, Maritime Prepositioning Force
MPFC, Medial PreFrontal Cortex
MPG, Miles Per Gallon
MPMC, Medial PreMotor Cortex
MPSI, Member of the Pharmaceutical Society of Ireland
MPSoC, MultiProcessor System-on-Chip
MPSRON, Maritime Propositioning Ship Squadron
MQ, Martinique (ISO 3166 digram),Midway Islands (FIPS 10-4 territory code)
mr, Marathi language (ISO 639-1 code)
MR, Mauritania (FIPS 10-4 country code; ISO 3166 digram)
MRAV, Multi-Role Armoured Vehicle
MRBM, Medium Range Ballistic Missile
MRC, Maintenance Requirements Card
MRD, Motorized Rifle Division
MRE, Meal y to Eat (U.S. military rations)
MRGO, Mississippi River-Gulf Outlet Canal (also referred to as MR-GO or "Mr. Go")
MRGW, Medium-Range Guided Weapon
mri, Māori language (ISO 639-2 code)
MRI, Magnetic Resonance Imaging
MRL, Multiple Rocket Launcher
MRO- Maintenance, Repair and Operating,Mars Reconnaissance Orbiter, Mauritanian ouguiya (ISO 4217 currency code)
MRPharmS, Member of the Royal Pharmaceutical Society (Great Britain)
MRR- Maximum Rock and Roll,Minimum-Risk Route,My Restaurant Rules
MRS, Magnetic Resonance Spectroscopy
MRSA, Methicillin-resistant Staphylococcus aureus
MRT- Mass Rapid Transit — used as either an official or unofficial name for metro systems in Singapore, Kaoshiung, Bangkok, Taipei, Chennai, and Delhi, Mauritania (ISO 3166 trigram)
MRTFB, U.S. Major Range and Test Facility Base
ms- Malay language (ISO 639-1 code),Millisecond
mS, Millisiemens
Ms, Megasecond
MS- mano sinistra (Latin, "left hand"), manuscript, Master of Science, Megasiemens, Microsoft (sometimes M$), Mississippi (postal symbol),Montserrat (ISO 3166 digram), Multiple Sclerosis,M&S, Modelling & Simulation,Marks & Spencer
msa, Malay language (ISO 639-2 code)
MSB- Main Support Battalion,Most Significant Bit (or Byte)
MSD, Minimum Safe Distance
MSDB, Multi Source Data Base
MSDE- Maryland State Department of Education, Microsoft Data[base] Engine,Microsoft SQL Server 2000 Desktop Engine, Military Scenario Development Environment,Mission Simulation Dynamic Engine
MSIE- Microsoft Internet Explorer,Master of Science in Industrial Engineering
MSL- Mars Science Laboratory,Mean Sea Level, Missile
MSLP, Mean Sea Level Pressure
MSM- Mainstream media, Men who have sex with men,Mount St Mary's School
MSN- Microsoft Network,Master of Science in Nursing
MSNBC, Microsoft National Broadcasting Company Cable news channel (see also msnbc.com)
MSO, Multiple System Operator
MSPA- Migrant and Seasonal worker Protection Act, MS Paint Adventures
MSPB, Merit Systems Protection Board
MSR- Main Supply Route,Module Service Record, Montserrat (ISO 3166 trigram), Motor Schlepp Regulung,Mountain Safety Research (outdoor supplies manufacturer)
MTV- MainosTeleVisio (Finnish commercial TV company),Music TeleVision
MTVL, Mobile Tracked Vehicle, Light
MTWS, MAGTF Tactical Warfare System
MU, Mauritius (ISO 3166 digram),Oman (FIPS 10-4 country code; from Muscat)
MUA, Meritorious Unit Award,Military Utility Assessment
MUR, Mauritius rupee (ISO 4217 currency code)
MUS, Mauritius (ISO 3166 trigram)
mV, Millivolt
MV, Maldives (FIPS 10-4 country code; ISO 3166 digram),Megavolt, Motor Vehicle,Motor Vessel
MVC, Missouri Valley Conference
MVFC, Missouri Valley Football Conference
MVNO, Mobile virtual network operator
MVR, Maldivian rufiyaa (ISO 4217 currency code)
mW, Milliwatt
MW- Maintenance of way (also MOW), Malawi (ISO 3166 digram), Medium Wave (radio), Megawatt, Mountain West (Conference) (formal initialism since July 2011)
MWC- Maritime Warfare Centre (various nations),Mountain West Conference (still used informally, although the league has adopted "MW")
MX, Mail Exchange, Mexico (FIPS 10-4 country code; ISO 3166 digram), Missile eXperimental
MXN, Mexican peso (ISO 4217 currency code)
my, Burmese language (ISO 639-1 code)
MY, Malaysia (FIPS 10-4 country code; ISO 3166 digram)
mya, Burmese language (ISO 639-2 code), million years ago
MYOB, Mind Your Own Business
MYR, Malaysian ringgit (ISO 4217 currency code)
MYS, Malaysia (ISO 3166 trigram)
MYT, Mayotte (ISO 3166 trigram)
MZ, Mach-Zehnder (interferometer), Magnetic Azimuth, Move, Zig (Zero Wing), Mozambique (FIPS 10-4 country code; ISO 3166 digram)
MZN, Mozambique metical (ISO 4217 currency code)
n, Nano
N, Newton,Nitrogen,North
N3F, National Fantasy Fan Federation
na, Nauruan language (ISO 639-1 code)
nA, Nanoampere
Na, Sodium (Latin Natrium)
NA, Namibia (ISO 3166 digram), Narcotics Anonymous, National Archives,Negative Acknowledge
NAA, N-Acetylaspartate
NAAD, North American Air Defense
NAAFI, Navy, Army and Air Force Institute (UK), No Ambition And Fuckall Interest (RSA army slang)
NAAK, Mark I NAAK, Nerve Agent Antidote Kit
NAACP, National Association for the Advancement of Colored People ("N double-A CP")
NAAQS, National Ambient Air Quality Standards
NAAWS, NATO Anti-Air Warfare System
NABCI, North American Bird Conservation Initiative ("nab-see")
NAC,(i/a) National Agency Check,U.S. Naval Avionics Center,U.S. Navy Advanced Concepts,North Atlantic Council,Northern Area Command
NACA, (U.S.) National Advisory Committee for Aeronautics (1915-1958, became NASA)
NACC, North Atlantic Cooperation Council
NACISA, NATO Communications and Information Systems Agency
NACMA, NATO Air Command and Control System Management Agency
NACRA, North America Caribbean Rugby Association (more specifically rugby union)
NAD, Namibian dollar (ISO 4217 currency code)
NAEC, U.S. Naval Air Engineering Center
NAF, NATO Architecture Framework, Naval Air Facility
NAFLD, NonAlcoholic Fatty Liver Disease
NAFO, Northwest Atlantic Fisheries Organization
NAFERA, Native American Free Exercise of Religion Act
NAFTA, North American Free Trade Agreement
NAGPRA, Native American Graves Protection and Repatriation Act
NAI, Named Area of Interest, Network Access Identifier
NAICS, North American Industry Classification System
NAIL, Neurotics Anonymous
NAILS, National Airspace Integrated Logistics System
NAIRU, Non Accelerating Inflation Rate of Unemployment
NAK, Negative Acknowledge
NAM, Namibia (ISO 3166 trigram)
NAMBLA, North American Man-Boy Love Association
NAMRL, Naval Aerospace Medical Research Laboratory
NaN, Not A Number (computing)
NAO, UK National Audit Office
NAPDD, Non-Acquisition Program Definition Document ("nap-dee-dee")
NAPS, Navy Acquisition Procedures Supplement
NARA, (U.S.) National Archives and Records Administration
NARAL, National Abortion Rights Action League
NARDAC, Naval Regional Data Automation Center
NARDIC, U.S. Navy Acquisition Research and Development Information Center
NARPV, National Association for Remotely Piloted Vehicles
NAS, National Academy of Sciences,National Air Space,National Audubon Society,Naval Air Station,New Attack Submarine
NASA, National Aeronautics and Space Administration
NASCAR, National Association for Stock Car Auto Racing
NASDAQ, National Association of Securities Dealers Automated Quotations
NASED, National Association of State Election Directors [1][2]
NASH, Non-Alcoholic Steatohepatitis
NASP, National Aerospace Plane
NASS, National Association of Secretaries of State [3]
NatGeo, National Geographic
NATO, National Association of Theatre Owners,North Atlantic Treaty Organisation
nau, Nauruan language (ISO 639-2 code)
NaUKMA, National University of Kyiv-Mohyla Academy
nav, Navajo language (ISO 639-2 code)
NAV, Navigation[al]
NAVCAMS, Naval Communications Area Master Station
NAVCC, National Audio-Visual Conservation Center
NAVCENT, Naval Forces U.S. Central Command
NAVDAC, Naval Data Automation Command
NAVEUR, Naval Forces U.S. European Command
NAVFE, U.S. Naval Forces, Far East
NAVFOR, Naval Force
NAVMACS, Naval Modular Automatic Communication Subsystem
NAVNET, Navy Network
NAVS, Non-Cooperative Airborne Vector Scoring
NAVSAT, Navigation Satellite
NAVSPACECOM, U.S. Navy Space Command
NAVSPASUR, U.S. Naval Space Surveillance System
NAVSTAR, Navigation Satellite Timing And Ranging
NAVTACNET, Navy Tactical Network
NAWC, U.S. Naval Air Warfare Center
NAWMP, North American Waterfowl Management Plan ("gnaw-wump")
nb, Norwegian Bokmål language (ISO 639-1 code)
Nb, Niobium
NB, New Brunswick (postal symbol), nota bene (Latin, "mark well")
NBA, National Basketball Association
NBACC, U.S. National Biodefense Analysis and Countermeasures Center ("enn-back")
NBC, National Broadcasting Corporation,Nuclear, Biological, and Chemical
NBCRS, NBC (Nuclear, Biological, and Chemical) Reconnaissance System
NBIC, Nanotechnology, Biotechnology, Information Technology, Cognitive Science
nbl, Southern Ndebele language (ISO 639-2 code)
NBL, National Basketball League (Australia)
NBT, Nitroblue tetrazolium (assay)
nC, Nanocoulomb
NC- Network Computer, New Caledonia (ISO 3166 digram), Node Centre,Non-Consensual,Normally Closed, North Carolina (postal symbol)
NCA, National Command Authority
NCAA, National Collegiate Athletic Association ("NC double A")
NCAR, U.S. National Center for Atmospheric Research
NCB, National Codification Bureau
NCCAM, U.S. National Center for Complementary and Alternative Medicine
NCCUSL, National Conference of Commissioners on Uniform State Laws (U.S.)
NCDDR, U.S. National Center for the Dissemination of Disability Research
NCES- U.S. National Center for Education Statistics,Net-Centric Enterprise Services
NCI, U.S. National Cancer Institute
NCIS- National Criminal Intelligence Service (British),Naval Criminal Investigative Service (U.S. Navy; see also NCIS, a U.S. TV series based on this unit)
NCL, New Caledonia (ISO 3166 trigram)
NCLR, National Council of La Raza
NCMO, No Commitment Make Out
NCND- Non Circumvention & Non Disclosure, Neither Confirm Nor Deny, New Concept New Design
NCO, Non-Commissioned Officer
NCP, Net Contracted Purchases
NCR, National Cash Register Co.
NCTR, Non-Co-operative Target Recognition
NCW, Network Centric Warfare
nd, Northern Ndebele language (ISO 639-1 code)
Nd, Neodymium
ND- Non-Disclosure, North Dakota (postal symbol)
NDAA, U.S. National Defense Authorization Act
NDBP, Non-Departmental Public Body (Scotland)
NDCC, New Directions Counseling Center (Concord, California)
nde, Northern Ndebele language (ISO 639-2 code)
NDH- Neue Deutsche Härte (German, "new German hardness"—heavy metal genre),Nezavisna Država Hrvatska (Croatian, "Independent State of Croatia"—Nazi puppet state)
ndo, Ndonga language (ISO 639-2 code)
NDP, New Democratic Party (Canada)
NDS,Nintendo DS
NDU, National Defense University (Washington, DC)
ne, Nepali language (ISO 639-1 code)
Ne, Neon
NE- Nebraska (postal symbol),Niger (ISO 3166 digram), North-East
NEA- National Education Association (U.S. labor union),Near-Earth Asteroid,Nuclear Energy Agency (OECD)
NEAT-Near-Earth Asteroid Tracking,,National Emergency Access Target (Au Health)
NEC- Network-enabled capability,Nijmegen Eendracht Combinatie (Dutch, "Nijmegen Unity Combination"; football club formed by the 1910 merger of the Nijmegen and Eendracht clubs),Nippon Electric Company, the original English-language name of the company now known as NEC,Northeast Conference (U.S. college sports)
NED, Netherlands (IOC and FIFA trigram, but not ISO 3166)
NECTEC, National Electronics and Computer Technology Center (Thailand)
NEI, National Eye Institute,Not Enough Information,Nuclear Energy Institute
NP, National Permit,A permit in India for trucks so they can go anywhere in the nation
NP, Nepal (ISO 3166 and FIPS 10-4 country code digram)
NPB, Nippon Professional Baseball
NPC, National Postgraduate Committee,National Provincial Championship (New Zealand rugby competition, now defunct),Navigation Planning Chart,Non-Player Character (role-playing games)
NPCS, Non-Passenger Coaching stock (in Railways)
NPD, Nationaldemokratische Partei Deutschlands (German)
NPDI, New Product Development and Introduction
NPG, Needline/Network Participation Group
NPH, Normal Pressure Hydrocephalus
NPL, National Priorities List, Nepal (ISO 3166 trigram)
NPOV, Neutral Point Of View
NPR, National Public Radio, Nepalese rupee (ISO 4217 currency code)
NQ, Dronning Maud Land (ISO 3166 digram; obsolete 1983)
NQOCD, Not Quite Our Class, Dear (or Darling). (Upper-class English slang)
NPO,nothing by mouth
nr, Southern Ndebele language (ISO 639-1 code)
NR, Nauru (ISO 3166 and FIPS 10-4 country code digram)
NRA, National Rifle Association
NRAO, National Radio Astronomy Observatory
NRC, National Research Council (U.S.),Nuclear Regulatory Commission (U.S.)
NRDC, (U.S.) Natural Resources Defense Council
NREL, U.S. National Renewable Energy Laboratory
NRK, Norsk Rikskringkasting (Norwegian Broadcasting Corporation)
NRMP, National Resident Matching Program (U.S. medicine)
NRO, U.S. National Reconnaissance Office
NRT, Near Real Time
NRTA, National Rat Terrier Association,National Retail Tenants Association,National Retired Teachers Association,Northwest Regional Transmission Association
OBSS, Off Board Sensor Systems,Ordo Byantinus Sancti Sepulchri (Byzantine Order of the Holy Sepulchre),Orbiter Boom Sensor System (space shuttle),Origins Billion Star Survey
OBX, Outer Banks (North Carolina)
oc, Occitan language (ISO 639-1 code)
OC, Officer Commanding
OCA, Observatoire de la Côte d'Azur,Offensive Counter-Air
OCD, Obsessive-Compulsive Disorder
OCFS, Oracle Cluster File System
OCFS2, Oracle Cluster File System Release 2
oci, Occitan language (ISO 639-2 code)
OCIDS, Optical Combat Identification System
OCMCC, [2] Orchard County MCC
OCN, Oncology Certified Nurse
OCO, Oort Cloud Object
OCOKA, Observation, Cover and concealment, Obstacles, Key terrain, and Avenues of approach (mnemonic)
OCR, Optical Character Recognition
OCS,see entry
OD- Old Dragon,Ordnance Datum (nautical charts), Overdose
ODAS, OCA-DLR Asteroid Survey
ODB- Ol' Dirty Bastard (rapper), One Dirty B*tch/Broad/Babe (professional wrestler), Operational Data Base, Original David Baker (professional poker player; used to distinguish from another professional poker player of the same name), Oxford Dictionary of Byzantium
ODBC, Open DataBase Connectivity
ODI- Office for Disability Issues (UK government agency),One Day International (cricket),Open Data-Link Interface,Oracle Data Integrator,Overseas Development Institute (UK think tank),OE[edit]
OEA, (U.S.) Office of Economic Adjustment
OED, Oxford English Dictionary
OECD, Organisation for Economic Co-operation and Development (international)
OEG, Operation Exposure Guidance
OEIS, On-Line Encyclopedia of Integer Sequences
OEM, Original Equipment Manufacturer
OFA, Occipital Face Area
OFDA, U.S Agency for International Development's Office of Foreign Disaster Assistance
OGC, Open Geospatial Consortium
OGD, Other Government Department
OGO, Other Government Organization
OGX,OUARGLA,a petroleum state in the south of Algeria
OH, Ohio (postal symbol)
OHC, OverHead-Cam engine
OHHLA, Original Hip-Hop Lyrics Archive
OHIP, Ontario Health Insurance Plan
OHMS, On Her (or His) Majesty's Service (also written: O.H.M.S.)
OHP, Observatoire de Haute-Provence
OHSS, Ovarian Hyperstimulation Syndrome
OIC, Officer In Charge
OIE, World Organisation for Animal Health (originally the Office international des épizooties, French for "International Epizootic Office")
OIF, Operation Iraqi Freedom
OIOC, Oriental & India Office Collections (in the British Library)
oj, Anishinaabe language (Ojibwa) (ISO 639-1 code)
OJ, Orange Juice,O.J. Simpson
oji, Anishinaabe language (Ojibwa) (ISO 639-2 code)
OJT,On-the-Job Training
OK- Oklahoma (postal symbol), oll korrect (facetious alteration of "all correct", 1839)
OKC, Oklahoma City
OLED, Organic Light-Emitting Diode
OLS, Operational Linescan System
om, Oromo language (ISO 639-1 code)
OM, Oman (ISO 3166 digram),Olympique de Marseille (French football club)
OMA, Open Mobile Alliance,Operations & Maintenance, Army
OMB, U.S. Office of Management and Budget,Ontario Municipal Board, Order of Mapungubwe in Bronze
OMD, Orchestral Manoeuvres in the Dark (1980s pop group)
OME, Osaka Mercantile Exchange
OMFG, Oh My Fucking God
OMG, Oh My God or Or My Gosh
OMGW, "Oh My Gosh it's Windy"
OMN, Oman (ISO 3166 trigram)
OMNCS, U.S. Office of the Manager for the National Communications System
OMP, Order of Mapungubwe in Platinum
OMR, Omani rial (ISO 4217 currency code)
OMS, Order of Mapungubwe in Silver
OMT, Object Model Template
OMW, On My Way, Oh My Word
ON, Ontario (postal symbol)
Onna,Oniong, Nnung Ndem, and Awa, a Local Government Area in Nigeria
ONC, Orthopaedic Nurse Certified
ONCE, Organización Nacional de Ciegos Españoles (Spanish, "National Organization for the Spanish Blind")
ONG, Orthodontic National Group
ONH, Óglaigh na hÉireann (Irish idiom for "soldiers of Ireland"), used for the following:
OOS, Occupational Overuse Syndrome,OneSAF Objective System,Open Operating System,Out Of Service
OOTW, Operations Other Than War
OP- Observation Point/Post,Ocean Pacific (surfwear and swimwear brand),Original Poster (internet),Order Point, in inventory management; the inventory state at which more items should be ordered. Often expressed as a part of OP/OQ (when quantity OP is reached, order OQ new items),Overpowered, often used to refer to fictional characters (e.g. Superman) or game mechanics (e.g. the Black Lotus in Magic: the Gathering) that are considered disproportionately strong
OPA, Other Procurement, Army
OPAC, Online Public Access Catalogue
OPCON, Operational control
OPCW, Organisation for the Prohibition of Chemical Weapons
OPEC, Organization of the Petroleum Exporting Countries
OPFOR, Opposing force
OPI- Office of Primary Interest,Open Prepress Interface
OPS- On-base plus slugging (baseball statistics), Operations
OPSEC- Operations security,Open Platform for Security
OPSI- Overwhelming post splenectomy infection,UK Office of Public Sector Information
OPTAR, Operational target
OPV, Offshore Patrol Vessel
OQ, Order Quantity, in inventory management; the quantity of new items to be ordered. Often expressed as a part of OP/OQ (when quantity OP is reached, order OQ new items)
or, Oriya language (ISO 639-1 code)
OR, Operating Room (surgery),Operational/Operations Research, Oregon (postal symbol),overreciprocation,when the leader of an inner circle friendship contacts a friend more than is wanted or reasonable
ORAU,(a/i) Oak Ridge Associated Universities
ORB,(a/i) Object Request Broker
ORBAT, Order of Battle
ORD, O'Hare International Airport in Chicago, Illinois (IATA Airport Code ORD)
ORD, Office of Research and Development,Operational Requirements Document
ORF, Operational iness Float
ori, Oriya language (ISO 639-2 code)
ORISE, Oak Ridge Institute for Science and Education
orm, Oromo language (ISO 639-2 code)
ORNL, Oak Ridge National Laboratory
ORR, Oak Ridge Reservation (U.S. DOE),Office of Rail Regulation (UK government),Office of Refugee Resettlement,(CIA) Office of Research and Reports,Operational iness Rate,Operational iness Review
ORSA,Oxacillin-resistant Staphylococcus aureus,Operations Research Society of America
OS, Operating System
os, Ossetic language (ISO 639-1 code)
Os, Osmium
OSA, Order of St. Augustine
OSCE, Organisation for Security and Cooperation in Europe
OSD, U.S. Office of the Secretary of Defense, On-screen Display
OSDL, Open Source Development Labs
OSE, Own Separate Entrance
OSERS, U.S. Department of Education Office of Special Education and Rehabilitative Services
OSETI, Optical SETI also Optical SETI
OSHA, Occupational Safety and Health Administration
OSI, Office of Strategic Influence,Ontario Swine Improvement,Open Source Initiative,Open Systems Interconnection
OSIA, (U.S.) On-Site Inspection Agency
OSL, Open Source License,Optically Stimulated Luminescence,Orbiting Solar Laboratory
OSIRIS- Optical, Spectroscopic, and Infrared Remote Imaging System (astronomical system on the Rosetta spacecraft),Optical System for Imaging and low Resolution Integrated Spectroscopy (astronomical system on the land-based Gran Telescopio Canarias)
OSM, One Saturday Morning
OSOTPBOIAS, One Sec, On The Phone, Be Off In A Sec
OSPA, Operations Security Professional's Association site of OSPA
OSPA, Oregon School Psychologists Association [3]
OSRH, Oružane Snage Republike Hrvatske (en: Armed forces of the Republic of Croatia)
oss, Ossetic language (ISO 639-2 code)
OSS, Office of Strategic Services (1942-1945, forerunner of CIA)
OSU, Ohio State University,Oklahoma State University
OTA, Office of Technology Assessment,(a/i) Orthodontic Technicians Association
OTAC, Orthodontic Technicians Association Conference, Orthodontic Technicians Association Council
OTB, Off The Ball, Offtrack Betting, OneSAF Testbed (a descendant of ModSAF)
OTC, Over-The-Counter (drugs)
OTD, Off the derech (referring to an Orthodox Jew who has stopped practicing the tenets of his or her faith)
OTEA, (U.S. Army) Operational Test Evaluation Agency
OTI, Office of Transition Initiatives (United States Agency for International Development)
OTO, Ordo Templi Orientis (Latin, "Order of the Temple of the East", i.e. the Order of Oriental Templars)
OTOH, On The Other Hand
OTS,Off the scale, sexually untouchable except for a lot of money.
OTSBH, Over The Shoulder Boulder Holder
OTW, On The Way
OTYBL, Over To You Blue Leader
OTYRL, Over To You Red Leader
OU, University of Oklahoma
OVC, Overcast (METAR Code), Ohio Valley Conference
OVV, Optically Visually Violent, or Optically Violently Variable,a type of quasar
OW, Old Wykehamist
OWN, Oprah Winfrey Network
OX, IATA code for Orient Thai Airlines
OXC, Optical cross-connect
OXF, IATA code for London Oxford Airport
OXM, Official Xbox Magazine
OXR, IATA code for Oxnard Airport
OXT, Oxytocin
Oy, Osakeyhtiö (Finnish, "stock company")
Oyj, Julkinen osakeyhtiö (Finnish, "public stock company")
OZ,(?) Australia
p, pico
P, Peta,Phosphorus
P2P, Peer-to-peer (networking)
pa, Punjabi language (ISO 639-1 code)
pA, picoampere
Pa- pascal,Protactinium
PA-(a/i) Pamela Anderson, Panama (ISO 3166 digram),Paraguay (FIPS 10-4 country code), Partial Agonist, Pennsylvania (postal symbol),petampere, PolyAmide (Nylon),Prince Albert piercing,Public Address (vocal amplification system),Public Affairs,PA 6, Nylon 6 (PolyAmide) (similarly for PA 11, 12, 46, 66, 610)
PAC- Pan Africanist Congress, Partial Solar Calibrator,Patriot Advanced Capabilities,Political action committee,(a/i) Primary Auditory Cortex
PACOM, (U.S.) Pacific Command
PADD- Personal Access Display Device (as seen in the Star Trek franchise),Petroleum Administration for Defense Districts, used for data collection in the U.S. petroleum industry
PADI, Professional Association of Diving Instructors
PAL- Phase Alternating Line (TV standard), Philippine Airlines
PAM,(a/i) Precision Attack Missile
Pamida, Patrick, Michael, and David, sons of the department store chain's co-founder Jim Witherspoon
PAMELA- Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics, Pedestrian Accessibility and Movement Environment Laboratory
pan, Punjabi language (ISO 639-2 code)
PAN- Panama (ISO 3166 trigram), Partai Amanat Nasional (Indonesian, "National Mandate Party"),Indonesian political party,Partido Acción Nacional (Spanish, "National Action Party"),political parties in El Salvador, Mexico, and Nicaragua,Partido de Avanzada Nacional (Spanish, "National Advancement Party"),Guatemalan political party,Personal Area Network, PolyAcryloNitrile, Programa de Asistencia Nutricional (Spanish, "Nutritional Assistance Program"),U.S. federal program for nutritional needs of poor families in Puerto Rico
PCTE- Portable Common Tool Environment, Punjab College of Technical Education
PCZ, Panama Canal Zone (ISO 3166 trigram; obsolete 1980)
Pd, Palladium
PD, per diem (Latin: (calculated) by the day),Point of Departure,Police Department,Postal District,Potential Difference,Principal Deputy,Public Domain,Privatdozent
PD, Product Director—Example: CERDEC Product Director C4ISR and Network Modernization
PDA, Personal Digital Assistant,Predicted Drift Angle,Public Display of Affection,Push-Down Automaton
PDD, Past Due Date,Presidential Decision Directive
PDF, Panama[nian] Defense Forces (abolished 1990),Portable Document Format,Principal Direction of Fire
PDG, President Director General,Product Development Group
PDL, Pure Dumb Luck (Texan punk band)
PDN, Pull-Down Network
PDP, Programmable Data Processor,Performance Development Plan
PDRY, People's Democratic Republic of Yemen (obsolete since 1990)
PDT, Pacific Daylight [Saving] Time (UTC-7 hours)
PDU, Police Dog Unit,Power Distribution Unit,Protocol Data Unit
PE,Professional Engineer
PE, Ice Pellets (old style METAR Code),Peru (ISO 3166 and FIPS 10-4 country code digram), Physical Education,Premature Ejaculation, Prince Edward Island (postal code),Price to Earning ratio (used for equity shares),Plant Extract
PEBCAC, Problem Exists Between Chair and Computer (IT help desk in-joke)
PEBKAC, Problem Exists Between Keyboard and Chair (ditto)
PEEK, PolyEtherEtherKetone
PEET, Partnerships for Enhancing Expertise in Taxonomy
PEGIDA, Patriotische Europäer gegen die Islamisierung des Abendlandes (German, "Patriotic Europeans Against the Islamization of the West")
PEI, Prince Edward Island,PolyEtherImide
PEK, PolyEtherKetone
PEN- Peruvian sol (ISO 4217 currency code), Poets, Essayists and Novelists, the original meaning of the initialism of the organization now known as PEN International,PolyEthylene Naphthalate
PEO, Παγκύπρια Εργατική Ομοσπονδία (Greek for "Pancyprian Federation of Labour"),Philanthropic Educational Organization,PolyEthylene Oxide,Professional Employer Organization,Professional Engineers Ontario
PEPFAR, President's Emergency Plan For AIDS Relief
PER, Peru (ISO 3166 trigram)
perl, usually lower case Practical Extraction and Report Language
PES, PolyEtherSulfone
PEST, UK Public Engagement with Science and Technology
PET,(a/i) Personal Electronic Transactor,Pierre Elliott Trudeau,Positron Emission Tomography (as in PET scan),PolyEthylene Terephthalate (plastic), Preliminary English Test
PETA,(a/i) pentaerythritol triacrylate,People Eating Tasty Animals,People for the Ethical Treatment of Animals
PETE, PolyEthyleneTErephthalate
PETP, PolyEthyleneTerePhthalate
pF, picofarad
PF- French Polynesia (ISO 3166 digram),petafarad, Phenol Formaldehyde (resin),Power forward, a player position in Australian rules football, basketball, and ice hockey
PFD, Permanent Fund Dividend = personal flotation device
PFE, Permanent Forest Estate
PFLAG, Parents, Families and Friends of Lesbians and Gays ("pee-flag")
PFIY, Please Fix it Yourself ("pee-fiy")
PFO, Pissed, Fell Over (medical diagnosis in-joke)
PfP, Partnership for Peace
pg, picogram
Pg, petagram
PG -
PGCE, Postgraduate Certificate in Education
PGD, Pre-implantation Genetic Diagnosis
PGENI, Pharmaco-Genetics for Every Nation Initiative
PGH, Pre-implantation Genetic Haplotyping
PGK, Papua New Guinea kina (ISO 4217 currency code)
PGM, Precision-Guided Munition
PGP, Pretty Good Privacy
pH, parts of hydrogen (acidity/alkalinity index),picohenry
PH, Passive Homing (missile guidance system), petahenry,Philippines (ISO 3166 digram), Probability of Hit,Public Health,Purple Heart
PHA, PolyHydroxyAlkanoate, Potentially Hazardous Asteroid
PHL, Philippines (ISO 3166 trigram)
PHQ,Patient Health Questionnaire
PHP, Philippine peso (ISO 4217 currency code), PHP: Hypertext Preprocessor (originally Personal Home Page (Tools))
PIM,(a/i) Parameterized Ionospheric Model,Path of Intended Motion,Pediatric Index of Mortality,Personal Information Manager/Management,Presence and Interworking Mobility,Processor-In-Memory,Program Integration Manager,Protocol Independent Multicast
PIN, Personal Identification Number
PINF, People In Need Foundation (Czech charitable organisation)
PIPA,(a/i) Program on International Policy Attitudes
PIR, Priority Intelligence Requirement
PIRA, Provisional Irish Republican Army
PIREPS, Pilot Reports
PITA, Pain In The Ass
pJ, picojoule
PJ, petajoule
PJHQ, Permanent Joint Headquarters
PJs, Pajamas ("pee-jayz")
K, picokelvin
PK, Pakistan (ISO 3166 and FIPS 10-4 country code digram),petakelvin, Player Kill[er],Probability of Kill, PolyKetone, Pulemet Kalashnikova (Russian ПК пулемет Калашникова, "Machinegun Kalashnikov")[1]
PKA, Previously Known As,Professionally Known As
PKE, Partnership of Kindermusik Educators [1] &[2] & [2]
PLI, Position Location Information,Private Lands Initiative,Professional Liability Insurance
PLIF, Planar Laser-Induced Fluorescence
PLK, Polska Liga Koszykówki (Polish, "Polish Basketball League")
PLKK, Polska Liga Koszykówki Kobiet (Polish, "Polish Women's Basketball League")
PLL, Phase-Locked Loop (electronics)
PLM, Polarized Light Microscope/Microscopy
PLMBA, Phospholipid Bilayer Microarray
Pln, Platoon
PLN, Polish zloty (ISO 4217 currency code)
PLO, Palestine Liberation Organization
PLOKTA, Press Lots Of Keys To Abort
PLP, Platonic Life Partner
PLS, Palletized Loading System,Personal Locator System
PLUTO, Pipe Line Under The Ocean
PLW, Palau (ISO 3166 trigram)
pm, picometre
Pm, petametre,Promethium
PM, Panama (FIPS 10-4 country code), Perry Mason,Phase Modulation,Post Meridiem (Latin "after noon"),Prime Minister,Project Manager, Saint Pierre and Miquelon (ISO 3166 digram)
PMC, Primary Motor Cortex
PMCS, Partial Mission Capable Supply (SM&R code),Power Management Control System,Professional Military Comptroller School
PMSC, NATO Political-Military Steering Committee on Partnership for Peace
PMSL, Piss Myself Laughing (Internet shorthand)
PMT,Premenstrual Tension (UK) (see Premenstrual Syndrome)
pN, piconewton
PN- petanewton,Pitcairn Islands (ISO 3166 diagram)
PNAC, Project for the New American Century
PNC- Palestinian National Council,Palmerston North City (cf. PNC, a New Zealand rapper from this city),Pittsburgh National Corporation, one of the two companies that merged into today's PNC Financial Services,Provident National Corporation, the other company that merged into PNC Financial Services
PNF, Pilot Not Flying (aviation)
PNG- Papua New Guinea (ISO 3166 trigram), Portable Network Graphics
PNP- Partido Nuevo Progresista,Plug 'N' Play/Pray,Positive Negative Positive
PNS, Pensacola, Florida (IATA airport code)
PNVS, Pilot Night Vision Sensor
PNH- Paroxysmal nocturnal hemoglobinuria,Police Nationale d'Haïti (French, "National Police of Haiti"),PO[edit]
Po, Polonium
PO- Dust Devil (METAR Code), per os (Latin, "by mouth"), Portugal (FIPS 10-4 country code)
PO, Post Office
PO, Purchase Order
POCD, Post-Operative Cognitive Dysfunction
pod, Plain Old Documentation
POD- Payable on Death (banking term, and the full name of American metal band P.O.D.),Point of divergence (alternate or counterfactual history),Port of Debarkation
POE, Perl Object Environment,(b) Port Of Embarkation (c) Polyol Ester (d) Power Over Ethernet
POETS, Portable Occultation, Eclipse, and Transit electronic-camera System
POFF, Plain Old Flat File
POG, Passionfruit, Orange and Guava
POGO, Project On Government Oversight
POI, Program Of Instruction
POK,(a/i) Plane Of Knowledge
pol, Polish language (ISO 639-2 code)
POL- Petroleum, Oils and Lubricants, Poland (ISO 3166 trigram)
POLAD, Political Advice
POM- Program Objective Memorandum,PolyOxyMethylene
POMDP, Partially observable Markov decision process
POP-(a/i) Point of Presence,Post Office Protocol,Progesterone Only Pill
por, Portuguese language (ISO 639-2 code)
POR- Portugal (FIFA and IOC trigram, but not ISO 3166), Proposed Operational Requirement
POS-(a/i) Point Of Sale terminal (retail industry transaction computers), Piece Of S**t
POSH, Port Outbound Starboard Home (alleged)
POSSLQ,Person of the Opposite Sex Sharing Living Quarters
POT,(a/i) Plane Of Tranquility
POTS- Plain Old Telephone Service (cf. PANS),Postural Orthostatic Tachycardia Syndrome
POV, Point of view
POW, Prisoner of war
pp-pages, especially in references, e.g. "A. U. Thor, Title, Journal X, Vol. 1, no. 2 (2010) pp. 13-42."
PP- Papua New Guinea (FIPS 10-4 country code), Passage Point,per procurationem (Latin, "by proxy")
PPA- Parahippocampal Place Area,PolyPhthalAmide
PPASC, (U.S.) Plans and Program Analysis Support Center
PPASSCCATAG, "Proud Parents Against Singles, Seniors, Childless Couples And Teens And Gays", a fictional group formed by Marge Simpson
PPCLI, Princess Patricia's Canadian Light Infantry (regiment)
PPG- Pittsburgh Plate Glass (the original name of the company now known as PPG Industries),The Powerpuff Girls
PPL- Pakistan Petroleum Limited,Pay per lead (marketing),Pennsylvania Power and Light, former name of the U.S. utility company now known as PPL,Pfadfinder und Pfadfinderinnen Liechtensteins (German, "Scouts and Guides of Liechtenstein"),Phonographic Performance Limited (UK performing rights organisation)
PPP- Point-to-Point Protocol,Purchasing Power Parity
PPQ, Pulses Per Quarter (used in music programming, sequencers)
PPQN, Pulses Per Quarter Note (ditto)
PPQT, Pre-Production Qualification Test
PPS- post postscriptum,Precise/Precision Positioning Service (GPS),PolyPhenylene Sulfide
PPV, Pay-per-view
PQ- Province of Québec (obsolete postal code, replaced by QC), Parti Québécois,PR[edit]
Pr, Pastor or Priest
Pr, Praseodymium
PR- Public Relations, Puerto Rico (postal symbol; ISO 3166 digram)
Prb, Presbyter
PRBO, Point Reyes Bird Observatory
PRC, People's Republic of China
PRD, CERDEC Product Realization Directorate
PRFG, Partial Fog (METAR Code)
PRI, Puerto Rico (ISO 3166 trigram)
PRK, Democratic People's Republic of Korea (ISO 3166 trigram)
PRM, Personnel iness Management
PRN, pro re nata (Latin, "for the emergency", "as needed")
PRT- Portugal (ISO 3166 trigram), Provincial Reconstruction Team
PRY, Paraguay (ISO 3166 trigram)
ps- Pashto language (ISO 639-1 code),picosecond
pS, picosiemens
Ps, petasecond
PS- Palestinian Territory, Occupied (ISO 3166 digram), Personnel Services, petasiemens, post scriptum (Latin, "written after"),Power Steering,Power Supply,Public School
PooS,Poo Sniffer (Internet shorthand)
PSA- Paralysis Society of America,Pharmaceutical Society of Australia,Pressure-Sensitive Adhesive,Production Services Association,Prostate Specific Antigen,Public Service Announcement,Public Service Association
PSC- Personal service corporation,Primary Somatosensory Cortex
PSE, Palestinian Territory, Occupied (ISO 3166 trigram)
PSG, Pacific Seabird Group
PSI, Pounds per square inch
PSI,(a/i) Portable Source Initiative
PSO- Peace Support Operations,Primary Standardisation Office (ABCA),Protocol Supporting Organization (of the ICANN)
PSS, Personnel System Support
PST, Pacific Standard Time (UTC-8 hours)
PSU, Pennsylvania State University
PSV- Philips Sport Vereniging (Dutch for "Philips Sports Union"),Public Service Vehicle
PsyOp, Psychological Operations
pt, Portuguese language (ISO 639-1 code)
pT, picotesla
Pt, Platinum
PT, petatesla, Physical Training (in the Army), Portugal (ISO 3166 digram)
PTA, Parent-Teacher Association
PTAL, Public Transport Accessibility Level
PTAN -
PTES, People's Trust for Endangered Species
PTFE, PolyTetraFluoroEthylene
PTI, Pardon the Interruption
PTL, Patrol, Primary Target Line
PTO, Patent and Trademark Office,Please Turn Over
PTSD, Post-Traumatic Stress Disorder
PTUI,(a/i) Plain-Text User Interface ("pa-too-ey") (cf CLI)
Pu, Plutonium
PU- Guinea-Bissau (FIPS 10-4 country code), Polyurethane, United States Miscellaneous Pacific Islands (ISO 3166 digram; obsolete 1986)
Pub, Publication
PUG,(a/i) PET Users Group
PUN,(a/i) Pull-Up Network
PUP,(a/i) Pull-Up Point
PUR, Puerto Rico (IOC and FIFA trigram, but not ISO 3166)
pus, Pashto language (ISO 639-2 code)
PUS, United States Miscellaneous Pacific Islands (ISO 3166 trigram; obsolete 1986)
PwC, PricewaterhouseCoopers (international accounting firm)
PWC, PieceWise Constant (describing a mathematical function)
PWL, PieceWise Linear (describing a mathematical function)
PWLC, PieceWise Linear and Concave/Convex (describing a mathematical function)
PWP, Plot, What Plot? / Porn Without Plot (denotes plotless, um, "feel-good" stories in online fiction, especially fanfic or erotic fiction)
PWR, Pressurized Water Reactor
PWV, Pretoria-Witwatersrand-Vereeniging, the original name for the South African province now known as Gauteng, and still used to refer to the metropolitan agglomeration at the core of the province
PX, Post eXchange
PY, Paraguay (ISO 3166 digram),Person-Year, Portsmouth yardstick
PYF, French Polynesia (ISO 3166 trigram)
PYG, Paraguayan guaraní (ISO 4217 currency code)
PYMWYMI, Put Your Money Where Your Mouth Is
PZ, Panama Canal Zone (ISO 3166 digram; obsolete 1980), Pickup Zone
Q1, First Quarter
Q2, Second Quarter
Q3, Third Quarter
Q4, Fourth Quarter
QA, Qatar (FIPS 10-4 country code; ISO 3166 digram)
Qantas, Queensland And Northern Territory Aerial Services
RAP,(a/i) Radio Access Point,Radiological Assistance Program (U.S. Department of Energy),Rear Area Protection,Recognised [Operating/Operational] Air Picture,Recurring Advance Payment,Relational Associative Processor,Reliable Acoustic Path,Rocket-Assisted Projectile,Rule Against Perpetuities
RARDE, UK Royal Armament Research and Development Establishment (1962-1991)
RARE, Rapid Acquisition with Relaxation Enhancement (MRI technique)
RASC, Royal Army Service Corp,Former corps of British Army
RATELO, Radiotelephone Operator
Rb, Rubidium
RB, Running Back (football)
RBAR, Row By Agonizing Row,a derogatory way of describing a technique of scanning a set of records in a database to update or examine the contents of each one. This is the technique of last resort in most cases, since most database operations are optimized when using set based analysis instead of the RBAR method.
RBCI, Radio Based Combat Identification
RBI, Runs Batted In
RBOC,(a/i) Regional Bell Operating Company ("Baby Bell")
RC,see entry
RCA- Radio Corporation of America,Root Cause Analysis,Royal Canadian Artillery,Royal City Avenue (famous entertainment zone in Thailand)
RCAF, Royal Canadian Air Force
RCAR, Research Council for Automobile Repairs ("are-car")
RCC, Rescue Co-ordination Centre
RCCO, Royal Canadian College of Organists
RCHA, Royal Canadian Horse Artillery (regiment)
RCMP, Royal Canadian Mounted Police
RCRA, Resource Conservation and Recovery Act ("reck-ra" or "rick-ra")
RCS- Radar Cross-Section,Reaction Control System,Revision Control System
RCT- Randomized Controlled Trial,Robotically Controlled Telescope,Rugby club toulonnais (French, "Rugby Club of Toulon")
RCZ, Rear Combat Zone
RD,Radio Disney
RDA- Research, Development, and Acquisition,Recommended Daily Allowance (Nutrition)
RDD, Radiological Dispersion Device
RDDL,(a/i) Resource Directory Description Language ("riddle")
RDECOM, (U.S. Army) Research, Development and Engineering Command
RDM, Remotely Delivered/Deliverable Mine
RDO- Rapid, Decisive Operation,Regular Day Off,Remote Data Objects
RDS- Remote Desktop Services (Microsoft service),Réseau des sports (French, "Sports Network" — Canadian French-language TV channel),Respiratory distress syndrome,Royal Dublin Society (see also RDS Arena, a stadium on the grounds often called "the RDS")
RDT, Remote Digital Terminal
RDV, Remote Detection Vehicle
Re, Rhenium
RE, Royal Engineers
REACH, Registration, Evaluation, Authorisation and Restriction of Chemical Substances
REACT, Remote Electronically Activated Control Technology
REAM, Retired Educators Association of Minnesota
RECCE, Reconnaissance
REEF, Reef Environmental Education Foundation
REM,(i/a) Rapid Eye Movement (sleep phase),Rosicrucian Egyptian Museum
REME, Royal Electrical and Mechanical Engineers
RERC, Rehabilitation Engineering Research Center
RES, Radiation Exposure Status, Reserve
RESNA, Rehabilitation Engineering and Assistive Technology Society of North America
REU, Réunion (ISO 3166 trigram)
Rf, Rutherfordium
RF, Radio Frequency,Receptive Field (neurophysiology)
RFA, Restrictive Fire Area (military),Royal Field Artillery
RFC, Request for Comments,Royal Flying Corps (WWI precursor to RAF)
RFD, Request for Documentation
RFE, Request for Evaluation
RFEF, Real Federación Española de Fútbol (Spanish for Royal Spanish Football Federation)
RFF, Right of First Refusal (legal term)
RFI, y For Inspection,y For Issue,Request For Information,Radio Frequency Interference
RFID, Radio Frequency IDentification
RFL, Rugby Football League
RFL, Restrictive Fire Line (military)
RFP, Request for Proposal
RFQ, Request for Quotation
RFT, Request for Tender
RFU, Rugby Football Union
Rg, Roentgenium
RG, Republican Guard
RGB, Red Green Blue (colour model)
RGBI, Red Green Blue Intensity (ditto)
Rh, Rhodium
RH, Southern Rhodesia (ISO 3166 digram; obsolete 1980)
RHIC, Relativistic Heavy Ion Collider
RHLI, Royal Hamilton Light Infantry (Canadian militia regiment)
RHO, Southern Rhodesia (ISO 3166 trigram; obsolete 1980)
RHS, Right Hand Side,Redland High School, Royal Horticultural Society,London
RHU, Replacement Holding Unit
RHWR, Radar Homing and Warning Receiver ("raw" for short)
RI, Rex et Imperator, Regina et Imperatrix King-Emperor
RI, Rhode Island (postal symbol)
RIAA, Recording Industry Association of America
RIBA, Royal Institute of British Architects
RIF- Reduction In Force (layoffs),Resistance Index for Frostbite,ing Is Fundamental
RIFA, Red imported fire ant
RILA, Retail Industry Leaders Association
RIM- Remote integrated multiplexer, Australian term for a digital loop carrier,Research In Motion, former name of the BlackBerry company,Revolutionary Internationalist Movement (Maoist organization),Royal Indian Marine, former navy of British colonial India
RIMVS, Retinal Imaging Machine Vision System
RINO, Republican In Name Only[1]
RIP-(a/i) Relief In Place, requiesca[n]t in pace (Latin for "may he/she/they rest in peace")
RIS- Range Instrumentation System,Réseau Info Sports (French, roughly "Sports News Network" — Canadian French-language TV channel)
RISC, Reduced Instruction Set Computer
RISD, Rhode Island School of Design ("riz-dee")
RISTA, Reconnaissance, Intelligence, Surveillance, and Target Acquisition (see also ISTAR)
RWH, Rain Water Harvesting
RJD, Reduced Julian Day
RKBA,Right to Keep and Bear Arms (Second Amendment to the United States Constitution)
RKI, Robert Koch Institute, German governmental research institute in Berlin
RKO, Radio-Keith-Orpheum Pictures
RL, Release Line,Real Life
RLP, Recognised [Operating/Operational] Land Picture
RLS, Restless Leg Syndrome
RLY, Rally Point
RM,see separate disambiguation page
rm, Raeto-Romansh language (ISO 639-1 code)
RMA, Return Mailing Authorization,Revolution in Military Affairs,Rachel McAdams
RMC, Robert Menzies College
RMC,(ii) Royal Military College (Australia, Canada, UK)
RMDA, Records Management and Declassification Agency
RMS, Rate-Monotonic Scheduling,Richard M. Stallman,Root-Mean-Square,Royal Mail Ship (e.g. RMS Titanic)
rn, Rundi language (Kirundi) (ISO 639-1 code)
Rn, Radon
RN, Radio Netherlands
RN, Royal Navy,Registered Nurse (US)
RNA, RiboNucleic Acid
RNAD,Royal Naval Armaments Depot (UK)
RNPS, Radio Network Planning System
RNZ, Radio New Zealand
RNZI, Radio New Zealand International
ro, Romanian language (ISO 639-1 code)
RO, Range Only,Red Orchestra, Romania (ISO 3166 and FIPS 10-4 country code digram)
ROA,(a/i) Rate Of Ascent
ROC,(i/a) Receiver Operating Characteristic (statistics),Regional Operations Centre,Republic Of China,Roc-A-Fella Records,Regional Organisations of Councils
ROD,(a/i) Rate Of Descent,Record Of Decisions,Report Of Discrepancy
ROE, Rules Of Engagement
roh, Raeto-Romansh language (ISO 639-2 code)
ROH, Ring of Honor
ROI, Return On Investment, Republic of Ireland.
ROFLOL, Rolling On the Floor Laughing Out Loud
ROK,(a/i) Republic of Korea
ROL, Romanian leu (ISO 4217 currency code)
ROM, -Only Memory,Refuel On the Move,Royal Ontario Museum
ron, Romanian language (ISO 639-2 code)
RON, Romanian new leu (ISO 4217 currency code)
ROP, Render Output Pipeline
ROPE,Research Opportunity and Performance Evidence
ROS, Reactive Oxygen Species
ROTC, Reserve Officer Training Corps ("Rawt-Cee")
ROU, Romania (ISO 3166 trigram)
ROV, Remotely Operated Vehicle
ROW, Right Of Way,Rest Of the World
ROWPU, Reverse Osmosis Water Purification Unit ("roe-pew")
ROZ,(a/i) Restricted Operations Zone
RP- Philippines (FIPS 10-4 country code), Release Point,Role-Playing [relationship potential]
RPA, Regional Plan Association
RPD, Recognition-Primed Decision-making
RPF, Rwandan Patriotic Front
RPG- (US-CA) Regional Planning Group,Report Program Generator,Rocket Projectile Gun,Rocket-Propelled Grenade,Role-Playing Game
RPL, Reverse Polish Lisp
rpm, revolutions per minute
RPM- Records, Promotion, Music (expansion of the title of a former Canadian music magazine),Red Hat Package Manager
RPN, reverse Polish notation
RPO- Radiation Protection Officer, Regular Production Option,RPR-FOM,(i/a) Realtime Platform Reference Federation Object Model ("reaper fomm")
rps, revolutions per second
RPV, Remotely Piloted Vehicle
RQ, Puerto Rico (FIPS 10-4 territory code)
RRB, Railroad Retirement Board
RRN, Recurrence Rate Number
RRP, Recurrent Respiratory Papillomatosis
RRS, Racing Rules of Sailing
RRSP, Registered Retirement Savings Plan (Canada; roughly equivalent to the IRA in the U.S.)
RS, Russia (FIPS 10-4 country code)
RSA- Regimental Support Area,Republic of South Africa,Rivest-Shamir-Adleman encryption, South Africa (IOC and FIFA trigram, but not ISO 3166)
RSD- Reflex Sympathetic Dystrophy, Serbian dinar (ISO 4217 currency code)
RSEQ, Réseau du sport étudiant du Québec (French, "Quebec Student Sports Network")
RSI, Repetitive Strain Injury
RSJ, Rolled Steel Joist (construction)
RSN, Real Soon Now (coined by author Jerry Pournelle)
RSPB, (UK) Royal Society for the Protection of Birds
RSPCA, Royal Society for the Prevention of Cruelty to Animals
RSR, Required Supply Rate
RSRE, UK Royal Signals and Radar Establishment (1976-1991)
RSRI, Red Sands Research Institute
RSS, Really Simple Syndication
RSTA, Reconnaissance, Surveillance, and Target Acquisition
RSVP, répondez s'il vous plaît (French for "respond if you please")
RT, Real Time,Radio Telephone, Return to duty
RTA, Road traffic accident (British)
RTBF, Radio-Télévision belge de la Communauté française
RTCA, RTCA, Inc.
RTF, Rich Text Format
RTFM, the Fucking/Fine Manual
RTG, Radio-isotope Thermoelectric Generator also used for Rubber Tyred Gantry crane
RTGS, Royal Thai General System of Transcription,Real Time Gross Settlement
RTI, Run-Time Infrastructure (Simulation)
RTL,see entry
RTLS, Return to Launch Site,period in NASA Space Shuttle assent profile where, during assent, shuttle aborts assent and turns and glides back to landing strip at launch site
RTP, Real-time Transport Protocol
RTS,see entry
RTT, Round Trip Timing
RTV, Rapid Terrain Visualization ACTD,Retro Television Network
ru, Russian language (ISO 639-1 code)
Ru, Ruthenium
RU, Russia (ISO 3166 digram)
RUB, Russian ruble (ISO 4217 currency code)
RUC, Royal Ulster Constabulary
run, Rundi language (Kirundi) (ISO 639-2 code)
rus, Russian language (ISO 639-2 code)
RUS, Russia (ISO 3166 trigram)
RUSI, Royal United Services Institute for Defence Studies
RVD- Rijksvoorlichtingsdienst (Dutch, "Government Information Service"), Rob Van Dam (American professional wrestler),RW[edit]
rw, Rwanda language (Kinyarwanda) (ISO 639-1 code)
RW, Rwanda (ISO 3166 and FIPS 10-4 country code digram)
RWA, Rwanda (ISO 3166 trigram)
RWADA, Resident Weighted Average Daily Attendance (New York State term used in public education to indicate the size of a school district, i.e. its number of students)
RWF, Rwandan franc (ISO 4217 currency code)
RWR, Radar Warning Receiver
RWS, Remote Weapon Station
Rx, Medical prescription (possibly from Latin "recipere", "to take": see entry)
RX, Receive
South-Sulphur/Sulfur,S0-9[edit],S4C — Sianel Pedwar Cymru (Welsh, "Channel Four Wales"),SA[edit],sa — Sanskrit language (ISO 639-1 code)
SA- Sand (METAR Code),Saudi Arabia (ISO 3166 and FIPS 10-4 country code digram), Sexaholics Anonymous, sine anno (Latin, “without year”),Situational awareness,South Africa,(i/s) South Australia (postal symbol), Standards Australia,Sturmabteilung (German, “Storm Detachment”, Nazi forerunner and rival of SS),S.A.,designation for a corporation in many European countries; see article for meanings
SAA- Saudi Arabian Airlines, former name of Saudia,Sex Addicts Anonymous,South African Airways,Southern Athletic Association,Standards Association of Australia, a former name of Standards Australia,SAAB — Svenska Aeroplan AB (Swedish aircraft manufacturer; also refers to its former auto manufacturing arm),SAAFR — (a/i) Standard use Army Aircraft Flight Route (“safer”),SAAMI — Sporting Arms and Ammunition Manufacturers' Institute (“sammy”),SAARC — South Asian Association for Regional Cooperation,SAB — Soprano Alto Baritone,Sabena — Société anonyme belge d'exploitation de la navigation aérienne (French for “Belgian Company for Exploiting Aerial Navigation”, 1923-2001),SABIC — Saudi Basic Industries Corporation,SABR — Society for American Baseball Research
SAC- Standards Activity Committee (of SISO),U.S. Strategic Air Command (1946-1992),SACAT — Semi Attended Customer Activated Terminal (Supermarket checkout),SACEUR — Supreme Allied Commander EURope,SACLANT — Supreme Allied Commander atLANTic,SACLOS — Semi-Automatic Command to Line of Sight
SAD- Safford Regional Airport (IATA code), Seasonal Affective Disorder,Situational Awareness Display,SADD — originally Students Against Drunk Driving, now Students Against Destructive Decisions (U.S. national school-related group)
SADL- Situation Awareness Data Link (“saddle”),Structural Architecture Description Language
SAE- Society of Automotive Engineers[1],Stamped addressed envelope,SAFER — Steel And Foam Energy Reduction,SAFICT — Software Agents as Facilitators of Interoperability in Collective Training,sag — Sango language (ISO 639-2 code),SAG — Screen Actors Guild,SAGAT — Situation Awareness Global Assessment Technique,SAGE — Semi-Automatic Ground Environment (simulation),SAHB — Sensational Alex Harvey Band,SAIC — Science Applications International Corporation
SALT-(a/i) Save A Life Today (SALT) Alert; Emergency Contact System, Southern African Large Telescope,Strategic Arms Limitation s
SAM- Sequential-Access Memory,Sociedad Aeronáutica de Medellín,Surface-to-Air Missile
Sambo,(p/a) Samooborona bez oruzhiya (Russian: "Самооборона без оружия", literally "self-defense without weapons")
san- Sanskrit language (ISO 639-2 code), Storage Area Network
SAR- Saudi riyal (ISO 4217 currency code), Search And Rescue,Special Administrative Region,Synthetic Aperture Radar
SARA- Southeastern Association for Research in Astronomy,Scientific Atlanta Resident Application,Scottish Amateur Rowing Association,Southern African Railway Association,State Administration for Religious Affairs,SARP — Search And Rescue Processor,SARR — (i/a) Search And Rescue Repeater,SARS — Severe Acute Respiratory Syndrome
SART- Search and Rescue Transponder,Situational Awareness Rating Technique,SARU — South African Rugby Union
SAS- Scandinavian Airlines System,Second Avenue Subway,Situational Awareness System,Special Air Service,Studies, Analysis and Simulation,Side Angle Side, Statistical Analysis System (original meaning; SAS Institute Inc. has evolved far beyond that scope),SASE — Self-Addressed Stamped Envelope,SASO — Stability and Support Operations,SASOL — Suid Afrikaanse Steenkool en Oli.e. (Afrikaans, “South African Coal and Oil”)
SAT- formerly Scholastic Aptitude Test and Scholastic Assessment Test; now known solely by the initials,Small Arms Trainer,SATB — Soprano Alto Tenor Bass,SATNAV — Satellite Navigation (Increasingly common GPS based system in new vehicles),SATs — Standard Assessment Tasks and other similar terms describing tests used in English schools; see National Curriculum assessment#Terminology,SAU — Saudi Arabia (ISO 3166 trigram),SAVAK — Sazamane Etelaat va Amniate Kechvar (Iranian “Security and Intelligence Service”)
SAW- Squad Automatic Weapon,Surface acoustic wave,SAWE — Society of Allied Weight Engineers,SB[edit],Sb — Antimony (Latin Stibium)
SB- Sexy Bitch,Sexy Bastard,Sexy Boy (disambiguation), Solomon Islands (ISO 3166 digram), Special Warfare Boat Operator
SBA- Santa Barbara Airport,Simulation-Based Acquisition,Sovereign Base Area,Student bar association,SBB — German for the Swiss Federal Railways
SBC- Sensotronic Brake Control,Single-Board Computer,Southern Baptist Convention,SBCCOM — U.S. Army Soldier and Biological Chemical Command (disbanded 2003),SBCS — Single-Byte Character Set,SBCT — Stryker Brigade Combat Team
SBD- Solomon Islands dollar (ISO 4217 currency code),Silent But Deadly
SBNO, Standing but not operating (in reference to amusement parks)
SBP- Samahang Basketbol ng Pilipinas (Filipino, "Basketball Federation of the Philippines"),U.S. School Breakfast Program,Society of Business Practitioners,State Bank of Pakistan
SBS- Special Boat Service,Special Broadcasting Service,Seoul Broadcasting System
SBW- Sonny Bill Williams (New Zealand dual-code rugby player),SC[edit],sc — Sardinian language (ISO 639-1 code),Sc — Scandium
SC- Cruiser Submarine (US Navy hull classification) c Saint Kitts and Nevis (FIPS 10-4 country code; from Saint Christopher),Seychelles (ISO 3166 digram),South Carolina (postal symbol)
SCA- Service Contract Act,Sexual Compulsives Anonymous,Society for Creative Anachronism,SCAP — Supreme Commander Allied Powers (Allied occupation of Japan),sccm — Standard cubic centimetre per minute (unit of measurement of fluid flow),sccs — Standard cubic centimetre per second (unit of measurement of fluid flow),scfh — Standard cubic foot per hour (unit of measurement of fluid flow),scfm — Standard cubic foot per minute (unit of measurement of fluid flow),scfs — Standard cubic foot per second (unit of measurement of fluid flow),SCG — Serbia and Montenegro (ISO 3166 trigram; defunct since 2006),SCHIMS — Soldier Combat Helmet Identification Marking System,SCHIP — State Children's Health Insurance Program (U.S.; often pronounced "ess-chip"),SciFi — Science Fiction,sCJD — Sporadic Creutzfeldt-Jakob disease,SCM — Surface Contamination Module,SCMODS — State, County, Municipal Offender Data System,SCN — Suprachiasmatic Nucleus,SCNT — Somatic Cell Nuclear Transfer
SCO- Santa Cruz Operation (initials later used by SCO Group), Scotland (FIFA trigram; not eligible for an ISO 3166 or IOC trigram), Shanghai Cooperation Organization,SCOTUS — Supreme Court of the United States,SCR — Seychelles rupee (ISO 4217 currency code),SCRAM — Safety Control Rod Axe Man
SCS- Scan Correlated Shift,Soil Conservation Service
SCSI- Small Computer System Interface (“scuzzy”), Strategic and Combat Studies Institute,SCT — Scattered Sky (METAR Code),SCTP — Stream Control Transmission Protocol,Scuba — Self Contained Underwater Breathing Apparatus,SCUF — Slow Continuous Ultrafiltration,SCUFN — Sub-Committee on Undersea Feature Names (of GEBCO),SD[edit],sd — Sindhi language (ISO 639-1 code)
SD- Secure Digital (memory card format),Sheriff's department,Smoke/Decontamination, South Dakota (postal symbol),Sudan (ISO 3166 digram)
SDC- Shaft Driven Compressor,U.S. Army Strategic Defense Command (1985-1992),SDG — Sudanese pound (ISO 4217 currency code),SDG — Sum Dum Goy,greasy spoon chinese restaurant,SDH — Synchronous Digital Hierarchy
SDHC, Secure Digital High Capacity
SDXC, Secure Digital eXtended Capacity
SE- Seychelles (FIPS 10-4 country code), Societas Europaea (form of business organization in the EU),South-east, Sweden (ISO 3166 digram), Synthetic Environment,System Engineering,SEAD — Suppression of Enemy Air Defence,SEADI — Senior Executioner of Approved Driving Instructors,SEAFDEC — Southeast Asian Fisheries Development Center,SEAL — SEa-Air-Land,SEAT — Sociedad Española de Automóviles de Turismo (Spanish for "Spanish Touring Car Company"),SEATO — Southeast Asia Treaty Organization,SeaWiFS — Sea-Viewing Wide Field of View Sensor (satellite instrument)
SEC- U.S. Securities and Exchange Commission, Security,Southeastern Conference,SECAM — Séquentiel couleur à mémoire (French for “Colour Sequential with Memory”; TV standard, cf. NTSC, PAL),SECDEF — (U.S.) Secretary of Defense,SED — CERDEC Software Engineering Directorate,SEDRIS — Synthetic Environment Data Representation and Interchange Specification,SEE — Small Emplacement Excavator,SEG — Society of Exploration Geophysicists,SEG — Special Escort Group,SEK — Swedish krona (ISO 4217 currency code),Selkent — South East London & Kent Bus Company,SELT — Single Ended Line Test (ing)
SEM-(i/a) Sensor Employment Manager,Switch to Email Mode, i.e. stop texting as it is more disruptive by making a sound or vibrating and email instead, for a given time
SEN- Senegal (ISO 3166 trigram), Small Extension Node
SEP- Somebody Else’s Problem,Spherical Error Probable,System Enhancement Package,System Engineering Plan,SEPTA — Southeastern Pennsylvania Rapid-Transit Authority,SERE — Survival, Evasion, Resistance and Escape,SESSPE — Submarine Escape and Surface Survival Personnel Equipment,SET — Staphylococcal EnteroToxin,SETI — Search for ExtraTerrestrial Intelligence,SETAC — Society for Environmental Toxicology and Chemistry
SEU- Single Event Upset (solid state physics),Slightly Enriched Uranium,Special Evidence Unit,SF[edit]
SF- Fleet Submarine (retired US Navy hull classification), San Francisco,Science fiction, South Africa (FIPS 10-4 country code), Speculative fiction,Special Forces
SFA- Sales force automation,Saturated fatty acid,Scottish Football Association,Stephen F. Austin (State University),Sudan Football Association
SFE- Supercritical fluid extraction,Sydney Futures Exchange,SFF — Standard File Format,sf&f — Science fiction & fantasy,SFM — Switch to Facebook Mode, i.e. to message someone on Facebook instead of texting as it is less disruptive in the sense of the phone not making sound or vibrating, for a period of time,SFOB — Special Forces Operations Base,SFOR — UN Stabilisation Force (in Bosnia and Herzegovina),SFU — Simon Fraser University (Canada),SG[edit],sg — Sango language (ISO 639-1 code),Sg — Seaborgium
SG- Senegal (FIPS 10-4 country code),Singapore (ISO 3166 digram),Snow Grains (METAR Code), Study Group
SGC- Server Gated Cryptography, Stargate Command,SGD — Singapore dollar (ISO 4217 currency code),SGML — Standard Generalized Markup Language,SGP — Singapore (ISO 3166 trigram)
SGS- South Georgia and the South Sandwich Islands (ISO 3166 trigram), Svalbard Ground Station (Landsat),Société Générale de Surveillance,SH[edit],sh — Serbo-Croatian language (ISO 639-1 code)
SH- Saint Helena (ISO 3166 digram), SONATRACH (Algerian petroleum company)
SHAC- Stop Huntingdon Animal Cruelty,Student Health Action Coalition,SHAPE — Supreme Headquarters Allied Powers Europe,SHF — Super High Frequency,SHN — Saint Helena (ISO 3166 trigram)
SHO, Showtime (see also sho.com)
SI- Slovenia (ISO 3166 and FIPS 10-4 country code digram), Socialist International,Sports Illustrated,Système International (French, International System of Units),SIA — Singapore Airlines (ICAO code),SIA — Survivors of Incest Anonymous,SIAM — Society for Industrial and Applied Mathematics,SIC — Standard Industrial Classification,SICS — (a/i) Swedish Institute of Computer Science,SIDS — Sudden infant death syndrome,SIDU — select, insert, delete, update. See Create, read, update and delete,SIF — Selective Identification Feature,SIFF — Successor IFF
SIG- Schweizerische Industrie Gesellschaft (German, "Swiss Industry Company"). See also SIG Sauer, a firearms manufacturer spun off from the aforementioned company in 2000., .signature (UNIX shell/Internet standard file name),(a/i) Special Interest Group,SIGCAT — Special Interest Group for CD-ROM Applications and Technology,SIGINT — Signals Intelligence,SIGMET — Significant Meteorological Information
SIIT- Saskatchewan Indian Institute of Technologies (Canadian university),Sirindhorn International Institute of Technology (Thai university),Stateless IP/ICMP Translation algorithm,SIMAC — Semantic Interaction with Music Audio Contents,SIMLAS — Soldier Integrated Multipurpose Laser System,SIMM — Single In-line Memory Module,SIMNET — SIMulator NETwork, later SIMulation NETwork,SIMNET-D, SIMNET-Developmental,SIMP — Strongly Interacting Massive Particle
SIMPLE- Satellite Interactive Multimedia Platform for Low-cost Earth stations, Savings Incentive Match Plan for Employees (as used in SIMPLE IRA), Standard Interface for Multiple Platform Link Evaluation (NATO STANAG 5602),sin — Sinhalese language (ISO 639-2 code),SIN — Social Insurance Number (Canada),SINCGARS — SINgle Channel Ground and Airborne Radio System
Siri, Speech Interpretation and Recognition Interface (Apple iOS software)
SIRI, Service Interface for Real Time Information
SISO- Simulation Interoperability Standards Organization,Society of Independent Show Organizers,SIW — Simulation Interoperability Workshop,SIYSS — Stockholm International Youth Science Seminar,SJ[edit]
SJ- Svalbard and Jan Mayen (ISO 3166 digram), Societas Iesu (Latin: The Society of Jesus, the Jesuit order), Statens Järnvägar (Swedish State Railways),SJA — Staff Judge Advocate (military law),SJC — Supreme Judicial Court of Massachusetts (note: the highest court in the state of Maine is also called the Supreme Judicial Court),SJM — Svalbard and Jan Mayen (ISO 3166 trigram),SK[edit],sk — Slovak language (ISO 639-1 code)
SK- Saskatchewan (postal symbol),Slovakia (ISO 3166 digram),SKC — Clear Sky (METAR Code),SKK — Slovak koruna (ISO 4217 currency code),SKM — Sikkim (ISO 3166 trigram; obsolete 1975),SL[edit],sl — Slovene language (ISO 639-1 code)
SL- Sierra Leone (ISO 3166 and FIPS 10-4 country code digram), Start Line
SLA- Service Level Agreement,Symbionese Liberation Army,SLAA — Sex and Love Addicts Anonymous,SLAC — Stanford Linear Accelerator Center,SLAN — sine loco, anno, nomine (Latin, “without place, year, or name”),SLAPP — Strategic lawsuit against public participation,SLB — Solomon Islands (ISO 3166 trigram),SLBM — Sea/Submarine-Launched Ballistic Missile,SLC — Scan Line Corrector,SLE — Sierra Leone (ISO 3166 trigram),SLI/SLi,(i/s) Scan-Line Interleave,Scalable Link Interface,SLIT — SubLingual ImmunoTherapy,slk — Slovak language (ISO 639-2 code),SLL — Sierra Leone leone (ISO 4217 currency code),SLO — Slovenia (IOC trigram, but not FIFA or ISO 3166)
SLOC- Sea Lines Of Communication,Source Lines Of Code,SLORC — State Law and Order Restoration Council (of Burma)
SLP- Sea Level Pressure, Super Long Play,slph — Standard litre per hour (air flow),slpm — Standard litre per minute (air flow),slps — Standard litre per second (air flow),SLR — Single-Lens Reflex (camera)
SLT- Single Lens Translucent, Speech and language therapist, Solid Logic Technology (electronics),Swing Landing Trainer (paratroops),Secondary lymphoid tissue,slv — Slovenian language (ISO 639-2 code),SLV — El Salvador (ISO 3166 trigram),SM[edit],sm — Samoan language (ISO 639-1 code),Sm — Samarium
SM- Sado-Masochism, San Marino (ISO 3166 and FIPS 10-4 country code digram), Soldier's Manual, Submarine Minelayer (US Navy hull classification),SMA — Scan Mirror Assembly,SMART — Subject Matter And Requirements Team,SMASS — Small Main-Belt Asteroid Spectroscopic Survey,SMCT — Soldier's Manual of Common Tasks,SMD — Surface Mount Device,SMDR — Station Message Detail Recording,sme — Northern Sami language (ISO 639-2 code)
SMG- Sequential Motorsport Gearbox,SubMachine Gun,SMH — Shaking My Head,SMil — Sadomasochisterne i landet (Danish SM organisation),SMIL — Synchronized Multimedia Integration Language,smo — Samoan language (ISO 639-2 code),SMP — Standard Military Pattern,SM&R — Source, Maintenance, and Recoverability,SMR — San Marino (ISO 3166 trigram),SMS — many, including: Short message service; see entry,SMTP — Simple Mail Transfer Protocol,SMU — Southern Methodist University
SMX-many, including: Server Macro Expansion, Solaris MINIX, Spatial multiplexing, Sulfamethoxazole; see entry
SMZ-many, including: Silver Mt. Zion, Sulfamethazine, Sulfamethoxazole; see entry,SN[edit],sn — Shona language (ISO 639-1 code),Sn — Tin (Latin Stannum)
SN- Senegal (ISO 3166 digram),Singapore (FIPS 10-4 country code),Snow (METAR Code),SuperNova,Screen Name,sna — Shona language (ISO 639-2 code),SNAFU — “Situation Normal — All Fouled/Fucked Up”,SNAP — Supernova/Acceleration Probe,SNCB — Société nationale des chemins de fer de Belgique (French for “Belgian Railways National Society”, NMBS in Dutch),SNCF — Société nationale des chemins de fer français (French for “French Railways National Society”),snd — Sindhi language (ISO 639-2 code),SND — Standard Nomenclature Database,SNE — Synthetic Natural Environment,SNES — Super Nintendo Entertainment System,SNÉTA — Syndicat national pour l'étude des transports aériens (French for “Aerial transport Study National Syndicate”, 1919-1923),SNG — Satellite News Gathering (television)
SNL- Saturday Night Live (television), Società Navigazione del Lago di Lugano,SNM — Special Nuclear Material,SNMP — Simple Network Management Protocol,SNOBOL — StriNg Oriented symBOlic Language,SNP — Single-nucleotide polymorphism
SNR- SuperNova Remnant,Signal-to-Noise Ratio,SNRI — Serotonin-Norepinephrine Reuptake Inhibitor,SNS — Spallation Neutron Source,SNU — Solar Neutrino Unit,SO[edit],so — Somali language (ISO 639-1 code)
SO- Shared Object (Unix),Sheriff's Office,Significant other, Somalia (ISO 3166 and FIPS 10-4 country code digram)
SOA- service-oriented architecture, Society of Actuaries, State of the art
SOAP- Simple Object Access Protocol,Supplemental Offer and Acceptance Program (U.S. medical residency matching)
SOB- Son Of a Bitch,Same Old Bullshit,SOC — Sector Operations Centre,SOCCSKSARGEN — South Cotabato, Cotabato, Sultan Kudarat, Sarangani, General Santos City (a region in the Philippines; pronounced “sock-sar-gen”),SOCOM — (U.S.) Special Operations Command
SoCon, Southern Conference (U.S. college sports)
SOD-(i/a) School Of Dentistry,Statement Of Difference[s],Statement Of Direction,Statement Of Documentation,Statement Of Duty/Duties
SOE- Secret Of Evermore,Special Operations Executive (WWII British organization),State Of Emissions (EW)
SOF-(a/i) Special Operations Force,Status of Forces,SOFIA — Stratospheric Observatory For Infrared Astronomy
SOGAT- Society of Graphical and Allied Trades,Former British printing union,SOHC — Single-OverHead-Cam engine,SOHO — Solar and Heliospheric Observatory,SOI — Signal Operating Instruction,SOL — Shit Out of Luck,SOLIS — Synoptic Optical Long-term Investigations of the Sun,som — Somali language (ISO 639-2 code)
SOM- Simulation Object Model, Somalia (ISO 3166 trigram),Sonar — SOund Navigation And Ranging
SOP- Standing/Standard Operating Procedure,State of Play
SOR- State Of iness,Statement Of Requirements
SOS- Somali shilling (ISO 4217 currency code),Save Our Souls,SOSTAR — Stand-Off Surveillance and Target Acquisition Radar,sot — Sotho language (ISO 639-2 code),SOUTHAG — Southern Army Group,SOUTHCOM — (U.S.) Southern Command,SOV — Single Occupant Vehicle,SOW — Statement Of Work,SOWHAT — RESNA Subcommittee on Wheelchairs and Transportation,SOX — Sarbanes-Oxley Act,SP[edit]
Sp- Special,Spring tide (nautical charts), sine prole (Latin, “without offspring”)
SP- Security Police,Self-Propelled,Shore Patrol, Spain (FIPS 10-4 country code), Start Point,Strong Point,spa — Spanish language (ISO 639-2 code),SPAAG — Self-Propelled Anti-Aircraft Gun,SPACECOM — (U.S.) Space Command,Spaser — Surface plasmon amplification by stimulated emission of radiation,SPC — Secretariat of the Pacific Community,SPCO — Single-Pole Change Over
SPD- Shimano Pedaling Dynamics,Sozialdemokratische Partei Deutschlands (Social Democratic Party of Germany),SPDT — Single-Pole Double-Throw,SPEAC — Stop Primate Experiments at Cambridge (later became SPEAK),SPECTRE — SPecial Executive for Counter-intelligence, Terrorism, Revenge and Extortion,SPEED — Subsistence Preparation by Electronic Energy Diffusion (early military microwave oven),SPIE — originally the Society for Photo-Optical Instrumentation Engineers (“SPIE — The International Society for Optical Engineering” 1981-2007, “SPIE” since 2007)
SPL- Scottish Premier League,Superior Parietal Lobule,Sound Pressure Level,SPM — Saint Pierre and Miquelon (ISO 3166 trigram),SPOD — (a/i) Sea Port of Debarkation,SPOE — (a/i) Sea Port of Embarkation,SPOT — Satellite pour l'observation de la Terre (French, “Satellite for Earth Observation”),SPQR — Senatus Populusque Romanus (Latin “The Senate and the People of Rome”),sps — sine prole superstite (Latin, “without surviving issue”),SPS — Standard Positioning Service (GPS),SPST — Single-Pole Single-Throw,SQ[edit],sq — Albanian language (ISO 639-1 code),SQ — Sound Quality,SQ — Standard Quality,sqi — Albanian language (ISO 639-2 code),SQL — (i/a) Structured Query Language (“seek-well”),SQUID — Superconducting QUantum Interference Device,SR[edit],sr — Serbian language (ISO 639-1 code),Sr — Strontium
SR- Sound Reinforcement,Supply Route, Suriname (ISO 3166 digram), Sveriges Radio (Swedish Radio Ltd),SR — Sustained release of a drug
SRAM- Scott (King), Ray (Day), SAM (Patterson) — founders of bicycle component manufacturer SRAM Corporation, Static Random Access Memory (“ess-ram”),SR-ATGW — Short-Range Anti-Tank Guided Weapon,SRB — Solid Rocket Booster,SRBM — Short-Range Ballistic Missile (cf. IRBM, ICBM),SRC — Scheduled Removal Component,srd — Sardinian language (ISO 639-2 code)
SRD- Science Requirements Document, Surinam dollar (ISO 4217 currency code),SREL — Savannah River Ecology Laboratory
SRL- Savannah River Laboratory,Single Rocket Launcher,Survival Research Labs,SRM — Specified Risk Material,srp — Serbian language (ISO 639-2 code),SRS — Savannah River Site,SRSP — Science and Religion in Schools Project,SRTP — [Secure Real-time Transport Protocol],SS[edit],ss — Swati language (ISO 639-1 code)
SS- Sand Storm (METAR Code), Schutzstaffel (German, roughly "Protection Squadron"; Nazi elite Praetorian guard), U.S. Secret Service,Spanish Ship,Stainless steel,Stockholm Skins, Submarine (US Navy hull classification), Super Sport,Surface-to-Surface (missile)
SSA- Cargo Submarine (US Navy hull classification), Social Security Administration (U.S.),Statistics South Africa,SSB — Single-sideband modulation,SSB — Sacramento Sustainable Business,SSBN — Nuclear-Powered Ballistic Missile Submarine (US Navy hull classification)
SSC- Safe, Sane, Consensual (SM phrase),Secondary Somatosensory Cortex,Smaller-Scale Contingency,U.S. Army Soldiers System Center (Natick, Massachusetts),Superconducting Super Collider,SSCCATAGAPP — Singles, Seniors, Childless Couples, And Teens And Gays Against Parasitic Parents (fictional organization from The Simpsons)
SSD- Solid-state drive, South Sudan (ISO 3166 trigram),SSDC — U.S. Space and Strategic Defense Command
SSDD- Same Shit, Different Day,Single-Sided Double-Density (floppy disk)
SSE- South South-East, Streaming SIMD Extensions,SSG — Guided Missile Submarine (retired US Navy hull classification),SSGN — Nuclear-Powered Guided Missile Submarine (US Navy hull classification),SSH — Saffir-Simpson Hurricane scale,SSK — Hunter-Killer Submarine (retired US Navy hull classification),SSKP — Single-Shot Kill Probability,SSL — Secure Sockets Layer,SSM — Surface-to-Surface (Guided) Missile
SSN- Nuclear-Powered Attack Submarine (US Navy hull classification), SIM Serial Number,Social Security Number (U.S.),Socialist Solidarity Network,Subsystem number (SCCP, SS7),SSNW — Same Shit, New Wrapping,SSO — Submarine Oiler (retired US Navy hull classification),SSP — Submarine Transport (retired US Navy hull classification)
SSR- Radar Picket Submarine (retired US Navy hull classification), Solid State Recorder
SSRI- Selective Serotonin Reuptake Inhibitor,Social Systems Research Institute
SSRN- Social Science Research Network, Nuclear-Powered Radar Picket Submarine (retired US Navy hull classification)
SSS- Siding Spring Survey,Side Side Side (an acronym for remembering congruent triangles), Sigue Sigue Sputnik (band),S/SSM — Surface-to-Subsurface Missile
SST- SuperSonic Transport, Training Submarine (US Navy hull classification),Saturated Suction Temperature (refrigeration cycles),SSTO — Single-Stage To Orbit,SSV — Soft-Skinned Vehicle (i.e., unarmoured),ssw — Swati language (ISO 639-2 code),SSW — South South-West,ST[edit],st — Sotho language (ISO 639-1 code)
ST- Saint Lucia (FIPS 10-4 country code),São Tomé and Príncipe (ISO 3166 digram)
STA- Scheduled Time of Arrival,Surveillance and Target Acquisition,STAG — (U.S.) Strategy and Tactics Group,STAGE — Scenario Toolkit And Generation Environment,STANAG — (NATO) Standardisation Agreement
STAR- Scientific and Technical Aerospace Reports (NASA),Simulation of Tactical Alternative Responses,Special Threat Analysis and Recognition
STAT- Signal Transducers and Activators of Transcription (cell biology),Special Tertiary Admissions Test (Australia)
STB,Surface Transportation Board[2]
STD- São Tomé and Príncipe dobra (ISO 4217 currency code), Sexually Transmitted Disease,STDM — Statistical Time Division Multiplexing,STENTOR — Satellite de télécommunications pour expérimenter de nouvelles technologies en orbite (French, “Orbital New Technology Experimental Telecommunications Satellite”)
STFU- Southern Tenant Farmers Union,Stuff You[citation needed],STH — Sonic The Hedgehog
STI- Sexually Transmitted Infection,Subaru Tecnica International,STK — Satellite Tool Kit,STM — Short Term Memory,STOL — Short Take-Off and Landing,STOVL — Short Take-Off and Vertical Landing
STP- São Tomé and Príncipe (ISO 3166 trigram), Standard Temperature and Pressure,STR — Short Tandem Repeat (DNA analysis),STRATCOM — United States Strategic Command
STRICOM- U.S. Army Simulation, Training & Instrumentation Command (1992-),Strike Command (1962-1971),STRIVE — Synthetic Tactical Real-time Interactive Virtual Environment,STSM — Senior Technical Staff Member,Stuka — Sturzkampfflugzeug (German WWII dive bomber),SU[edit],su — Sundanese language (ISO 639-1 code)
SU- Soviet Union (ISO 3166 digram; obsolete 1992),Sudan (FIPS 10-4 country code),SUB — Student Union Building,SuD — Subject under Discussion,SUDC — Swedish United Dawah Center, a salafist Islamic organisation in Sweden
SUI- Sonic user interface, Switzerland (IOC and FIFA trigram, but not ISO 3166),SUK — Start Up Kit,sun — Sundanese language (ISO 639-2 code),SUN — ,Soviet Union (ISO 3166 trigram; obsolete 1992),Stanford University Network that led to Sun Microsystems,SUNY — State University of New York (usually pronounced “sue-knee”),SUR — Suriname (ISO 3166 trigram),SURTASS — Surveillance Towed Array Sensor System,SUSAT — Sight Unit Small Arms, Trilux,SUV — Sport Utility Vehicle,SV[edit],sv — Swedish language (ISO 639-1 code)
SV- El Salvador (ISO 3166 digram), Sportverein (German for “Sport Association”, as in Hamburger SV and SV Werder Bremen),SVC — Secondary Visual Cortex,SvD — Svenska Dagbladet (Swedish newspaper)
SVD- Singular Value Decomposition,Snaiperskaya Vintovka Dragunova (Снайперская винтовка Драгунова, Russian for “Dragunov Sniper Rifle”),SVG — Scalable Vector Graphics,SVK — Slovakia (ISO 3166 trigram),SVM — Support Vector Machine (artificial intelligence),SVN — Slovenia (ISO 3166 and FIFA trigram),SVO — subject-verb-object,SVR — Sluzhba Vneshney Razvedki (Служба Внешней Разведки, Russian for "Foreign Intelligence Service"),SW[edit],sw — Swahili language (ISO 639-1 code)
SW- South-West ordinal direction,Sweden (FIPS 10-4 country code), Shortwave,swa — Swahili language (ISO 639-2 code)
SWA-(i/a) Secure Web Access,South-West Asia,SWAC — Southwestern Athletic Conference,SWALK — Sealed With A Loving Kiss,SWAN — System for Wearable Audio Navigation,SWAP — Surface Waters Acidification Programme,SWAPO — South-West Africa People's Organisation,SWAT — Special Weapons And Tactics,swe — Swedish language (ISO 639-2 code),SWE — Sweden (ISO 3166 trigram)
SWF- Shockwave Flash file (“swiff”),Single White Female
SWG- Surface Warfare Group,Symbology Working Group,SWHR — Society for Women's Health Research,SWIG — Simplified Wrapper and Interface Generator,SWIR — (a/i) Short Wave InfraRed (“ss-why-are” or “swhirr”)
SWLABR- She Was Like A Bearded Rainbow,Cream song (Bruce, Clapton and Baker),SWORD — Subjective WORkload Dominance,SWORDS — Special Weapons Observation Reconnaissance Detection System,SWOT — Strengths, Weaknesses, Opportunities, Threats (mnemonic)
SWP- Special Working Party (“swipp”),Systematic Westing Plan (a plan of periodic westing of shares or mutual funds worth a fixed amount of money),Skill With Prizes (UK pub quiz machines — quality titles include: Pub Quiz, Quiz City, Frog in a Liquidizer, Who Wants To Win a Tenner?),SWT — Sea Water Tank,SWV — Sisters With Voices (American female R&B vocal group),SWZ — Swaziland (ISO 3166 trigram),SX[edit],SX — Sonic X
SXM- Scanning X-ray Microscope, Sint Maarten (ISO 3166 trigram), Stream X-Machine,SY[edit],SY — Syria (ISO 3166 and FIPS 10-4 country code digram),SYC — Seychelles (ISO 3166 trigram),SYP — Syrian pound (ISO 4217 currency code),SYR — Syria (ISO 3166 trigram),Syriza — Synaspismós Rizospastikís Aristerás (Greek Συνασπισμός Ριζοσπαστικής Αριστεράς,"Coalition of the Radical Left"),SysML — System Modeling Language,Sysop — System Operator,SZ[edit]
SZ- Swaziland (ISO 3166 digram),Switzerland (FIPS 10-4 country code),SZL — Swaziland lilangeni (ISO 4217 currency code),References[edit],^ Society of Automotive Engineers,^ Replaced Interstate Commerce Commission on January 1st, 1996,v,t,e,List of acronyms,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,Retrieved from "https://en.wikipedia.org/w/index.php?title=List_of_acronyms:_S&oldid=694527511",Categories: Lists of abbreviationsHidden categories: All articles with unsourced statementss with unsourced statements from December 2015,Navigation menu,Personal tools,Not logged inContributionsCreate accountLog in,Namespaces,,,,,,,View history,
T, Tera,Tesla,Tritium
ta, Tamil language (ISO 639-1 code)
Ta, Tantalum
TA, Target Acquisition,Teaching Assistant, Tera-ampere, Territorial Army (UK), Tristan da Cunha (ISO 3166 digram)
TAA, Transparency Anti-Aliasing, Trans Australia Airlines
TAACOM, U.S. Theater Army Area Command
TAADCOORD, Theatre Army Air Defence Co-ordinator
TAAR, Trace Amine-Associated Receptor
TAC, U.S. Tactical Air Command (1946-1992)
TACAMO, Take Charge and Move Out (U.S. military)
TACAN, Tactical Air Navigation
TACC, Tactical Air Control Centre,(USAF) Tanker Airlift Control Center
TACCO, Tactical Coordinator
TACCSF, U.S. Theater Aerospace Command & Control Simulation Facility
TACDAR, Tactical Detection And Reporting
TACP, Tactical Air Control Party,Technology Applications Certification Program
TC, Teracoulomb,Turks and Caicos (ISO 3166 digram),United Arab Emirates (FIPS 10-4 country code; from Trucial Coast States)
TCA, Transformational Communications Architecture, Turks and Caicos (ISO 3166 trigram)
TCAS, Traffic Collision Avoidance System
TCAA, Top Counter-Assault Agents
TCCCS,(i/a) Tactical Command, Control and Communication System ("ticks")
TCD, Chad (ISO 3166 trigram)
TCG, Trusted Computing Group,Türkiye Cumhuriyeti Gemisi
TCHD, Truck Cargo Heavy Duty
TCL, Tool Command Language
TCM, Turner Classic Movies
TCP, Traffic Control Point,Transmission Control Protocol,Trichlorophenol
TCU, Texas Christian University
TCWMS, Tele-Center Workforce Management System
TCW, Tasty Coma Wife
TD- Territorial Decoration,Toon Disney,Toronto-Dominion (Bank); see also its U.S. subsidiary, TD Bank, N.A.,Touchdown,Tower Defence A game type, involves defending waves of enemies using tower
TDA,The Disney Afternoon
TDL, Tactical Data Link
TDM, Time-Division Multiplexing
TDMA, Time Division Multiple Access
TDP, Technology Demonstration Programme
TDRS, Tracking Data and Relay Satellite
te, Telugu language (ISO 639-1 code)
Te, Tellurium
TE, Tactical Exploitation, Testosterone to Epitestosterone ratio, Tight end (American football; position generally not used in modern Canadian football)
TEAL, Tasman Empire Airways Limited
Team, Together everyone achieves more
TEAMS, The East African Marine System (fiber optic cable)
TENCAP, Tactical Exploitation of National Capabilities
TERS, Tactical Event Reporting System
TES, Tactical Event System
TEST, Thesaurus of Engineering and Scientific Terms
TEU, Twenty-foot equivalent unit (cargo capacity)
TeVeS, Tensor Vector Scalar theory
TF -
TFMPP, Trifluorophenylmethylpiperazine
TFR, Total Fertility Rate
TFT, Thin-Film Transistor
tg, Tajik language (ISO 639-1 code)
Tg, Teragram
TG, Togo (ISO 3166 digram)
TGA, Tonga (IOC and FIFA trigram, but not ISO 3166)
TGB, Tres grande bibliothèque (French, "Very Large Library"), a sarcastic nickname for the Bibliothèque nationale de France
TGIF, Thank God It's Friday, Toes Go In First
tgk, Tajik language (ISO 639-2 code)
tgl, Tagalog language (ISO 639-2 code)
TGO, Togo (ISO 3166 trigram)
TGT- Target (also the ticker symbol for Target Corporation), Ticket Granting Ticket (computer security), Tyrese, Ginuwine, Tank,see TGT (group) for their collaboration
TGV- Tanjong Golden Village (Malaysian cinema chain), Tanora malaGasy Vonona (Malagasy, "Young Malagasies Determined",political party), Test Generation with Verification,Train à grande vitesse (French for "High-Speed Train"),TH[edit]
th, Thai language (ISO 639-1 code)
Th, Thorium
TH, Terahenry,Thailand (ISO 3166 and FIPS 10-4 country code digram)
tha, Thai language (ISO 639-2 code)
THA, Thailand (ISO 3166 trigram)
THAAD,(a/i) Terminal High Altitude Area Defence
THB, Thai baht (ISO 4217 currency code)
THEGENTRY, The High-End Group of Earth's New Technologies Research Yield
TIALD, Thermal Imaging and Airborne Laser Designation
TIBS, Tactical Information Broadcast System
TIC, Troops In Contact
TID, Target Identification, ter in die (Latin, "three times daily")
TIGERS, Topologically Integrated Geographic Encoding and Referencing System
TIM, Technical Information Memorandum,Technical Interchange Meeting,Toxic Industrial Material,Telecom Italia Mobile
TIMS, Tactical Internet Management System,The Institute of Management Sciences,The International Molinological Society,Thermal Infrared Multispectral Scanner,Thermal Ionization Mass Spectrometry,Travel Information Management Services,Tuberculosis Information Management System
TINC, There Is No Cabal
TINY,That Is, Not You (internet slang)
TIP, Thermal Identification Panel
tir, Tigrinya language (ISO 639-2 code)
tits,Toes in the Sand
TJ, Tajikistan (ISO 3166 digram),Terajoule
TJD, Truncated Julian Day
TJK, Tajikistan (ISO 3166 trigram)
TJS, Tajik somoni (ISO 4217 currency code)
tk, Turkmen language (ISO 639-1 code)
TK, Terakelvin,Tokelau (ISO 3166 digram)
TKBL, Türkiye 1. Kadınlar Basketbol Ligi, the Turkish-language name of the Turkish Women's Basketball League
TKL, Tokelau (ISO 3166 trigram)
TKM, Turkmenistan (ISO 3166 trigram)
tl, Tagalog language (ISO 639-1 code)
Tl, Thallium
TLPM,T1 Line Performance Monitor
TL- Team Leader, Teralitre,Timor-Leste (ISO 3166 digram), ThermoLuminescence,TL;DR ,Too long; didn’t read.
TLATOJL,The Life and Times of Juniper Lee
TLA, Three-Letter Abbreviation/Acronym
TLAM, Tomahawk Land Attack Missile
TLAR- That Looks About Right (chat shorthand),Transporter-Launcher And Radar
TLC- Tender Loving Care,The Learning Channel (now known strictly by the initials),Thin Layer Chromatography,T-Boz, Lefteye, Chilli,Tables, Ladders, and Chairs (type of professional wrestling match)
TLD- Thermoluminescent Dosimeter,Top-Level Domain
TLM- Traditional Latin Mass,Tridentine Latin Mass,Transaction Lifecycle Management
TLS- Timor-Leste (ISO 3166 trigram), Times Literary Supplement,TM[edit]
Tm- Terametre
Thulium-
TM- Technical Manual,Theatre Missile,Thematic Mapper, trademark (often written in small superscript type: TM or ™), Turing machine, Turkmenistan (ISO 3166 digram) Tympanic Membrane
TMA- Terminal Manoeuvring Area (restricted flying zone),Texas Medical Association,Tristeza y muerte de agave (Spanish, "wilting and death of agave"),a disease affecting the blue agave, from which the popular spirit tequila is produced
TMAP,(a/i) Texas Medication Algorithm Project
TMC, The Movie Channel
TMD, Theatre Missile Defence
TMDK, The Mighty Don't Kneel (Australian professional wrestling stable also active in Japan)
TMI, Too Much Information
TMJ, TemporoMandibular Joint (syndrome)
TMM, Turkmen manat (ISO 4217 currency code)
TMNT, Teenage Mutant Ninja Turtles
TMO- Table Mountain Observatory,Television match official (rugby union)
TMP- East Timor (ISO 3166 trigram; obsolete 2002), Temporary
TMPG, Transparent Multi-Platform Gateway
TMR, Twin Main Rotors (helicopter type)
TMS, Transcranial Magnetic Stimulation
TMT, Thirty Meter Telescope
TMTOWTDI, There's Than One Way To Do It (from Perl)
TMZ, Thirty-Mile Zone, an area in and around Los Angeles considered "local" under entertainment industry union work rules
tn, Tswana language (ISO 639-1 code)
TN- Tennessee (postal symbol),Teranewton,Tonga (FIPS 10-4 country code),Tunisia (ISO 3166 digram)
TNA, Total Nonstop Action Wrestling
TND, Tunisian dinar (ISO 4217 currency code)
TNO, Trans-Neptunian Object
TNT- Thomas Nationwide Transport, an Australian company that was one of the predecessors to the former TNT N.V. and the current TNT Express, TriNitroToluene,(a/i) Turner Network Television,TO[edit]
to, Tongan language (ISO 639-1 code)
TO- Togo (FIPS 10-4 country code),Tonga (ISO 3166 digram)
TOA- Table Of Authorities,Total Obligation Authority (accounting)
TOAD- Temporary, Obsolete, Abandoned, or Derelict site (urbanism),Towed Optical Assessment Device
TOBS, Time of OBServation
TOC-(a/i) Table Of Contents,Tactical Operations Centre, Temporo-Occipital transition Cortex,Top of Concrete,To-do, To-do-List
TOG, Togo (IOC and FIFA trigram, but not ISO 3166)
TOGS, Thermal Observation Gunnery Sight
TOMS, Total Ozone Mapping Spectrometer (satellite instrument)
ton, Tongan language (ISO 639-2 code)
TON, Tonga (ISO 3166 trigram)
TOP, Tongan pa'anga (ISO 4217 currency code)
TOS- Tape Operating System,Terms of service,The Original Series, used to distinguish the first Star Trek TV series from other parts of the media franchise,Tramiel Operating System
TTP- Tactics, Techniques, and Procedures,Thrombotic thrombocytopenic purpura,Trailer Transfer Point
TTTEAF,Thomas the Tank Engine and Friends
TTY, TeleTYpewriter (Printer)
TTYL, To You Later (Internet slang)
TTZ, Tetrazolium
TU, Technische Universität (German for "Technical University"),Thammasat University (Thailand), Turkey (FIPS 10-4 country code)
TUC, Trades Union Congress
TUG, TeX Users Group
TUI,(a/i) Text-based user interface (cf. CLI), among other uses
tuk, Turkmen language (ISO 639-2 code)
TUN, Tunisia (ISO 3166 trigram)
TUNS, Technical University of Nova Scotia
Tur, Turkish language (ISO 639-2 code)
TUR, Turkey (ISO 3166 trigram)
TUSK, Tank Urban Survival Kit
TUV, Tuvalu (ISO 3166 trigram)
Tv, Time value, a designation seen on some camera dials for shutter priority mode
TV- Television, Teravolt, Transvestite, Tuvalu (ISO 3166 and FIPS 10-4 country code digram)
TVA, Tennessee Valley Authority
TVG-(p/i) Television Games (Network), Tick, Very Good, Often used by School Teachers when marking homework etc. (Tick VG)[1][2]
TVR, TreVor (Wilkinson) Racing
TVS, Tornado vortex signature
tw, Twi language (ISO 639-1 code)
TW, Republic of China (Taiwan) (ISO 3166 and FIPS 10-4 country code digram),Terawatt
TWAIN, Technology Without An Interesting Name
TWD, Taiwan dollar (ISO 4217 currency code)
TWE, Trans World Entertainment
twi, Twi language (ISO 639-2 code)
TWI, The Welding Institute
TWN, Republic of China (Taiwan) (ISO 3166 trigram)
TWP, Technical Working Paper
TWS, Thermal Weapon Sight,Track While Scan
TWIP, Take What Insurance Pays,When a surgeon agrees to accept a lower payment than he ordinarily would for a procedure and not charge the patient the difference
TX, Texas (postal symbol),Transmit,Turkmenistan (FIPS 10-4 country code)
TXV,Thermostatic Expansion Valve
ty, Tahitian language (ISO 639-1 code)
TYT,Take Your Time,Internet chat abbreviation
TZ, Tanzania (ISO 3166 and FIPS 10-4 country code digram)
TZA, Tanzania (ISO 3166 trigram)
TZC, Tetrazolium chloride
TZS, Tanzanian shilling (ISO 4217 currency code)
U, Uranium
UA, Ukraine (ISO 3166 digram) Unit of Action
UAAP, University Athletic Association of the Philippines
UAB, University of Alabama at Birmingham
UAE,(i/s) United Arab Emirates (also IOC and FIFA trigram, but not ISO 3166)
UAH- Ukrainian hryvnia (ISO 4217 currency code), University of Alabama in Huntsville
UAR- Uniformly At Random (probability),Unión Argentina de Rugby (Spanish for "Argentine Rugby Union"),United Arab Republic
UAV- Unmanned Aerial Vehicle,Unprotected Anal and Vaginal sex,UB[edit]
UBC, United Baptist Church,University of British Columbia
UBIGEO, Ubicación Geografica (Spanish for Geographical Location)
UBS, Unbundled Bitstream Services,United Bank of Switzerland,United Banque Suisse
UCBSA, United Cricket Board of South Africa
UCAV,(a/i) Unmanned Combat Air Vehicle
UCF, University of Central Florida
UCI, Union Cycliste Internationale (French, "International Cycling Union"),University of California, Irvine
UCLA, University of California, Los Angeles
UCLES, University of Cambridge Local Examinations Syndicate
UCR, University of Costa Rica,University of California, Riverside
UCS, Union of Concerned Scientists
UCSB, University of California, Santa Barbara
UCSD, University of California, San Diego
UDAS, Uppsala-DLR Asteroid Survey
UDDI, Universal Description, Discovery and Integration
UDP, User Datagram Protocol
UDT, Underwater Demolition Team
UDTS, Uppsala-DLR Trojan Survey
UE, Unit of Employment
UEFA, Union of European Football Associations
UEFI,(i/a) Unified Extensible Firmware Interface
UESAC, Uppsala-ESO Survey of Asteroids and Comets
UFC, Ultimate Fighting Championship
UFO, Unidentified Flying Object,United Farmers of Ontario
ug, Uyghur language (ISO 639-1 code)
UG, Uganda (ISO 3166 and FIPS 10-4 country code digram)
UGA, Uganda (ISO 3166 trigram)
UGV, Unmanned Ground Vehicle
UGX, Ugandan shilling (ISO 4217 currency code)
UHF, Ultra High Frequency
UHMW, Ultra-High Molecular Weight
UHRB, Ultra-High Resolution Building (simulation)
UIC, University of Illinois at Chicago
UID, User ID
uig, Uyghur language (ISO 639-2 code)
UIL, University Interscholastic League (governing body for most interscholastic activities, notably sports, in Texas public high schools)
UIUC, University of Illinois at Urbana-Champaign
UJTL, Universal Joint Task List
uk, Ukrainian language (ISO 639-1 code)
UK, United Kingdom (also FIPS 10-4 country code),University of Kentucky
UKIP, United Kingdom Independence Party
ukr, Ukrainian language (ISO 639-2 code)
UKR, Ukraine (ISO 3166 trigram)
UL, Underwriters Laboratories
ULEB, Union des ligues européens de basket-ball, French for "Union of European Basketball Leagues"
ULF, Ultra Low Frequency
UM, U.S. Minor Outlying Islands (postal symbol; ISO 3166 digram)
UMBC, University of Maryland, Baltimore County
UMC, United Microelectronics Corporation,University of Missouri-Columbia
UMCP, Unit Maintenance Collection Point
UMES, University of Maryland Eastern Shore
UMI, U.S. Minor Outlying Islands (ISO 3166 trigram)
UMIST, University of Manchester Institute of Science and Technology
UMK, Uniwersytet Mikołaja Kopernika (Polish "Nicolaus Copernicus University")
UML, Unified Marxist-Leninist Communist Party of Nepal,Unified Modeling Language,University of Massachusetts Lowell,User-Mode Linux
UMTS, Universal Mobile Telecommunications System
UN, United Nations
UNABOM, University and airline bomber (FBI case name)
UNAIDS,(i/a) Joint United Nations Programme on HIV/AIDS
UNaM,(p/a) Universidad Nacional de Misiones (Spanish, "National University of Misiones")
UNAM, Universidad Nacional Autónoma de México (Spanish, "National Autonomous University of Mexico")
UNAMSIL, United Nations Mission in Sierra Leone
UNCF, United Negro College Fund
UNCLOS, United Nations Convention on the Law of the Sea
UNCSGN, United Nations Conference on the Standardization of Geographical Names
UNCTAD, United Nations Conference on Trade and Development
UNDCP, United Nations Drug Control Programme
UNDE,(i/a) Union of National Defence Employees (Canada)
UNDP, United Nations Development Programme
UNEP, United Nations Environment Programme
UNESCO, United Nations Educational, Scientific and Cultural Organization
UNFCCC, United Nations Framework Convention on Climate Change
UNFICYP, United Nations Peacekeeping Force in Cyprus
UNGEGN, United Nations Group of Experts on Geographical Names
UNHCR, United Nations High Commission (er) for Refugees
UNICEF, United Nations Children's Fund (originally the United Nations International Children's Emergency Fund)
UNICRI, United Nations Interregional Crime and Justice Research Institute
UNIDO, United Nations Industrial Development Organization
UNIFEM, United Nations Development Fund for Women (from the French Fonds de développement des Nations unies pour la femme)
UNIS, University of Surrey, Guildford, England
UNLV, University of Nevada, Las Vegas
UNMIK, United Nations Interim Administration Mission in Kosovo
UNMOVIC, United Nations Monitoring, Verification and Inspection Commission
UNOSOM, United Nations Operations in Somalia
UNPROFOR, United Nations Protection Force (in former Yugoslavia)
UNRISD, United Nations Research Institute for Social Development
UNSM, Union of Nova Scotian Municipalities
UNTAC, United Nations Transitional Authority in Cambodia
UNTAET,(i/a) United Nations Transitional Administration in East Timor
UPC- United Pentecostal Church, Universal Product Code
UPdM, Università Popolare della Multimedialità
UPDM- Uganda People's Democratic Movement,Unified Modeling Language Profile for DoDAF and MoDAF,Unité de psychiatrie du développement mental,Universal Pattern Decomposition Method,Unix Power Device Management,Unpressurized Docking Mast,Urban Planning, Design and Management
UPS- Uninterruptible Power Supply,United Parcel Service
UPTN- Universal Personal Telecommunications Number,Upper Peninsula Telehealth Network
UPU, Universal Postal Union
ur, Urdu language (ISO 639-1 code)
UR, Soviet Union (NATO country code, obsolete 1992)
URBSFA, Union royale belge des sociétés de football association (French for Royal Belgian Football Association)
urd, Urdu language (ISO 639-2 code)
URD, User Requirements Document
URI- Uniform Resource Identifier,University of Rhode Island
URL,(a/i) Uniform Resource Locator ("earl")
URU, Uruguay (IOC and FIFA trigram, but not ISO 3166)
URY, Uruguay (ISO 3166 trigram)
US, United States (also ISO 3166 and FIPS 10-4 country code digram)
USA- United States of America (also ISO 3166 trigram),United States Army
USAADAC, U.S. Army Air Defense Artillery Center, Fort Bliss, Texas
USAARMC, U.S. Army ARMor Center, Fort Knox, Kentucky
USAAVNC, U.S. Army AViatioN Center, Fort Rucker, Alabama
USAF, United States Air Force
USAFSPC, U.S. Air Force Space Command
USAIC- U.S. Army Infantry Center,U.S. Army Intelligence Center
USAID,(a/i) United States Agency for International Development
USAP- Union Sportive des Arlequins Perpignanais, United States Antarctic Program
USAPATRIOT, Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism
USAREUR, United States Army Europe
USB, Universal Serial Bus
USC- United States Code,University of South Carolina,University of Southern California
USCG, United States Coast Guard
USCINCSPACE, United States Commander in Chief, Space Command
USD- (U.S.) Under-Secretary of Defense* USD(A&T), (U.S.) Under-Secretary of Defense (Acquisition and Technology), United States dollar (ISO 4217 currency code),USD(AT&L), (U.S.) Under-Secretary of Defense for Acquisition, Technology, and Logistics,USD(C), (U.S.) Under-Secretary of Defense (Comptroller)
USDA, United States Department of Agriculture
USDI, United States Department of the Interior
USDOE, United States Department of Energy
USDRE, (U.S.) Under-Secretary of Defense for Research and Engineering (1978-1986)
USEC, United States Enrichment Corporation
USFL, United States Football League
USFWS, United States Fish and Wildlife Service
USGS, United States Geological Survey
USIA, United States Information Agency
USJFCOM, United States Joint Forces Command
USL- United Soccer League, a third-level U.S. league. Not to be confused with an earlier league of the same name.,United Soccer Leagues, the organization that operates the above league, plus several other lower-level leagues,University of Southwestern Louisiana, a former name for the school now known as the University of Louisiana at Lafayette
USMC, United States Marine Corps
USMNT, United States men's national (soccer) team
USN, United States Navy
USNA, United States National Arboretum,United States Naval Academy
USNB, United States Naval Base
USNG, United States National Grid
USNH, United States Naval Hospital
USNI, United States Naval Institute
USNO, U.S. Naval Observatory
USNOFS, United States Naval Observatory Flagstaff Station
USNP, United States Newspaper Program
USNR, United States Navy Reserve
USNS, United States Naval Ship
USNY, University of the State of New York (usually pronounced "use-knee")
USNZ, University Sport New Zealand
USPS, United States Postal Service
USPTO, United States Patent and Trademark Office
USR- Universal System Resources (/usr, directory in a *NIX filesystem), User
USS, United States ship (sometimes meaningless; see Star Trek)
USSPACECOM, United States Space Command
USSR, Union of Soviet Socialist Republics
UST, Underground Storage Tank
USTRANSCOM, United States Transportation Command
USWNT, United States women's national (soccer) team
UT, Universal Time
UTEP,(a/i) University of Texas at El Paso (pronounced you-tep)
UU, Unitarian Universalism,University of Utah,Unseen University
UUA, Unitarian Universalist Association
UUID, Universally Unique Identifier (see also GUID)
UUV, Unmanned Underwater Vehicle
UV, Burkina Faso (FIPS 10-4 country code; from Upper Volta), ultraviolet
UVM- Universal Verification Methodology, Universidad del Valle de México, University of Vermont, from its Latin name of Universitas Viridis Montis ("University of the Green Mountains"), UV mapping,UW[edit]
UW, University of Washington
UWO, University of Western Ontario
UWT, Under Water Telephone
UWTG, Under Water Tug
UWW, United World Wrestling
UXO, Unexploded Ordnance
UY, Uruguay (ISO 3166 and FIPS 10-4 country code digram)
UYU, Uruguayan peso uruguayo (ISO 4217 currency code)
uz, Uzbek language (ISO 639-1 code)
UZ, Uzbekistan (ISO 3166 and FIPS 10-4 country code digram)
uzb, Uzbek language (ISO 639-2 code)
UZB, Uzbekistan (ISO 3166 trigram)
UZS, Uzbek som (ISO 4217 currency code)
V, 5 (in Roman numerals),Vanadium,Volt
VA, Vatican City-State (ISO 3166 digram), Veterans Affairs (U.S. Department of), Virginia (postal symbol), Various Artists
VACIS, Vehicle And Container Inspection System
VACIS, Victorian Ambulance Clinical Information System
VANOS, Variable Nockenwelle System
VAO, Vienna Art Orchestra
VASIS, Visual Approach Slope Indicator System (aviation)
VAT, Value-Added Tax, Vatican City-State (ISO 3166 trigram)
VB, Victoria Bitter (beer),Visual Basic
VBA, Visual Basic for Applications
VC, Saint Vincent and the Grenadines (FIPS 10-4 country code; ISO 3166 digram), Victoria Cross
VCDS, (Canada) Vice-Chief of the Defence Staff, VAG-COM Diagnostic System
vCJD, Variant Creutzfeldt-Jakob Disease
VCJCS, Vice Chairman, Joint Chiefs of Staff
VCNO, (U.S.) Vice Chief of Naval Operations
VCR, Video cassette recorder
VCofS, Vice Chief of Staff
VCT, Saint Vincent and the Grenadines (ISO 3166 trigram)
VD, North Vietnam (ISO 3166 digram, obsolete 1977), Venereal Disease
VDFS, VisualSVN Distributed File System (VDFS)
VDMOS,(i/a) Vertical Double-diffused MOS transistor ("vee-dee-moss")
VDOT,(i/a) Virginia Department of Transportation ("vee-dot")
VDR, North Vietnam (ISO 3166 trigram, obsolete 1977)
ve, Venda language (ISO 639-1 code)
VE, Venezuela (FIPS 10-4 country code; ISO 3166 digram)
VEB, Venezuelan bolívar (ISO 4217 currency code)
VEEGA, Venus Earth Earth Gravity Assist manœuvre
ven, Venda language (ISO 639-2 code)
VEN, Venezuela (ISO 3166 trigram)
VERDI, Vittorio Emanuele Re D'Italia (Victor Emmanuel, King of Italy)
VERITAS, Very Energetic Radiation Imaging Telescope Array System
VFA- Victorian Football Association (historic Australian rules football league), Volatile Fatty Acid
VfD, s for deletion (used in Wikipedia)
VFL, Victorian Football League, the name of two distinct Australian rules football leagues:
VFM, Value For Money
VFMO, Very Fast Moving Object (astronomy)
VFR, Visual Flight Rules
VFT, Virtual Function Table
VFW, Veterans of Foreign Wars
VG, British Virgin Islands (ISO 3166 digram)
VGB, British Virgin Islands (ISO 3166 trigram)
VH1,(a/i) Video Hits One
VHF, Very High Frequency
vi, Vietnamese language (ISO 639-1 code)
VI, 6 (in Roman numerals),British Virgin Islands (FIPS 10-4 territory code),U.S. Virgin Islands (postal symbol; ISO 3166 digram), vide infra (Latin, "see below"),Virtual Instrument (LabVIEW)
VIA, Versatile Interface Adapter
VIC, Victoria, Australia (postal symbol), Video Interface Chip,Virginia Intermont College
VIDS, Visual Information Display System
vie, Vietnamese language (ISO 639-2 code)
VII, 7 (in Roman numerals)
VIII, 8 (in Roman numerals)
VIN,(i/a) Vehicle Identification Number (ISO 3779)
VIP, see entry
VIR, U.S. Virgin Islands (ISO 3166 trigram),Virgin Atlantic Airways (ICAO code)
VIS, Vavoua International School,Vienna Independent Shorts,Viewable Image Size,Visual Instruction Set
VISCII, VIetnamese Standard Code for Information Interchange
VIT, Vellore Institute of Technology
VIVO, Video In Video Out
VJ, Video Jockey
VK, Australia (ham radio code), Västerbottens-Kuriren, a Swedish daily newspaper
VLA, Very Large Array,(UK) Veterinary Laboratories Agency
VLAD,(a/i) Vertical Line Array DIFAR
VLBA, Very Long Baseline Array
VLF, Very Low Frequency
VLIW, Very Long Instruction Word
VLPFC, VentroLateral PreFrontal Cortex
VLPMC, VentroLateral PreMotor Cortex
VLSF, Very Loud, Stink-Free
VLSI, Very-large-scale integration
VLVS, Very Loud, Very Stinky
VM, Vietnam (FIPS 10-4 country code)
VMASC,(i/a) Virginia Modeling Analysis & Simulation Center ("vee-mask")
VMF, Variable Message Format
VMF,Marine Fighting Squadron of the United States Marine Corps
VMN, VentroMedial Nucleus (neurophysiology)
VN, Vietnam (ISO 3166 digram)
VND, Vietnamese đồng (ISO 4217 currency code)
VNIR, Visible and Near InfraRed
VNM, Vietnam (ISO 3166 trigram)
VNS,see entry
VOA, Voice of America
vo, Volapük language (ISO 639-1 code)
VOC, Vereenigde Oostindische Compagnie (Dutch East India Company),Volatile organic compounds
VOIP, Voice Over Internet Protocol
vol, Volapük language (ISO 639-2 code)
VOLT, Visual OpenType Layout Tool
Volvo, Swedish supplier of commercial vehicles owned by Ford Motor Company. "Volvo" means "I roll" in Latin.
VON, Victorian Order of Nurses
VOR, VHF Omnidirectional Ranging
VOR, Voice of Russia
VOX, Voice Operated oscillator
VP,(a/i) Vice-President ("veep")
VPN, Virtual Private Network
VQ, Vector Quantization, U.S. Virgin Islands (FIPS 10-4 territory code)
VR, Virtual Reality
VRSG, Virtual Reality Scene Generator
VS, Very Special (brandy grade),vide supra (Latin, "see above")
VSAT, Very Small Aperture Terminal ("vee-satt")
VSHORAD, Very Short Range Air Defence
VSO, Voluntary Services Overseas
VSOP, Variations séculaires des orbites planétaires (French, "Planetary Orbit Secular Variations"),Very Small Outline Package (integrated circuit),Very Superior Old Pale (brandy grade),VLBI Space Observatory Programme
VSR, Very Special Relativity
VT- Vatican City-State (FIPS 10-4 country code),Vermont (postal symbol), Video tape,Virginia Tech
VTC, Video Tele-Conference
VTEC, Variable valve Timing and Electronic lift Control
WRT,Third party firmware for the Linksys WRT routers and compatible models from other vendors.
WRT,Web Runtime (WRT) is a portable application framework developed by Nokia that allows the creation of widgets on the S60 Platform.
WS- Samoa (ISO 3166 and FIPS 10-4 country code digram; from the country's former name of Western Samoa), Writer to the Signet (a Scottish solicitor)
WSC, Weapon System Catalogue
WSDL, Web Services Description Language
WSJ, (The) Wall Street Journal
WSL- White Star Line (shipping company),Women's Super League, used to describe England's top women's association football league and top women's rugby union competition,Workers' Socialist League (UK political party)
WSM- Samoa (ISO 3166 trigram; from Western Samoa), Winchester Short Magnum (family of rifle cartridges)
WSMR,(a/i) White Sands Missile Range ("whiz-murr")
WSROC, Western Sydney Regional Organisation of Councils
WSSM, Winchester Super Short Magnum (family of rifle cartridges)
WST- Water Soluble Tetrazolium (assay), Samoan tālā (ISO 4217 currency code)
WSTC, Women Signallers Territorial Corps (World WarII UK)
WSW, West South-West
WTB, Wales Tourism Board,Warenterminbörse Hannover
WTB, Want to Buy (a commonly used phrase in the online game "World of Warcraft")
WTC, World Trade Center
WTF, What the fuck?; also What a Terrible Failure (android)
WTFH, What The Fucking Hell
WTH, What the Hell
WTO, World Trade Organization
WTS, Want to Sell (a commonly used phrase in the online game "World of Warcraft")
WU, Wabash University,Washington University in St. Louis,Western Union,Windows Update,Work unit,WU Wien (German Wirtschaftsuniversität Wien, Vienna University of Economics and Business Administration)
WUU2,What you up to,Internet slang popular with teenagers.
WUBU2,What you been up to
WV, West Virginia (postal symbol)
WVA, World Veterinary Association
WVIAC, West Virginia Intercollegiate Athletic Conference
WVR, Women's Volunteer Reserve (World WarII UK)
WVSC, Women's Volunteer Service Corps (World WarII Canada)
WVU, West Virginia University
WVUIT, West Virginia University Institute of Technology (note, however, that the initialism is almost never used; the popular name of the school is "WVU Tech")
WW,see entry
WWE, World Wrestling Entertainment
WWF- World Wide Fund for Nature, from its original name of World Wildlife Fund, which remains the legal name in the U.S. and Canada,World Wrestling Federation
WWI, World WarI
WWII, World WarII
WWIII, World WarIII
WWJD, "What would Jesus do?"
WWS, Wheaton Warrenville South High School
WWV, Wagner-Werk-Verzeichnis (catalog of the works of Richard Wagner, and callsign of NIST's shortwave radio station in Fort Collins, Colorado)
WWW, World Wide Web
WWWF, World Wide Wrestling Federation
WXO, Weather [Executive] Officer
WY, Wyoming (postal symbol)
WYSIWYG, What You See Is What You Get (pronounced "wizzy-wig". See entry for derived acronyms)
WYSIWYP, What You See Is What You Print / What You See Is What You Pay ("wizzy-whip")
WZ, Swaziland (FIPS 10-4 country code)
XAF, BEAC (Banque des états de l'Afrique centrale) Central Africa CFA (Coopération financière en Afrique centrale) franc (ISO 4217 currency code)
XAG, Silver Troy ounce (ISO 4217 currency code)
XAU, Gold Troy ounce (ISO 4217 currency code)
XBA, European Composite Unit (EURCO; Bonds market unit) (ISO 4217 currency code)
XBB, European Monetary Unit (E.M.U.; Bonds market unit) (ISO 4217 currency code)
XBML, eXtended Business Modelling Language
XC, Ninety (in Roman numerals)
XCBL, XML Common Business Library
XCD, East Caribbean dollar (ISO 4217 currency code)
XD,Used in chatrooms or email for smiley face. X is the eyes; squinted D is the mouth; XD.
Xe, Xenon
XF, Automobile made by Jaguar, Truck made by DAF Trucks, IATA code for Vladivostok Air
XFA, XML Forms Architecture
XFC, Xtreme Fighting Championships
XFD, Fighter aircraft made by Douglas
Xfe, X File Explorer
XFF, X-Forwarded-For
XFG, Exfoliation glaucoma
XFH, 1932 rototype U.S. Navy fighter aircraft made by Hall, X-ray fluorescence holography
XFN, XHTML Friends Network, IATA code for Xiangyang Liuji Airport
XFR, Automobile made by Jaguar
XFT, X FreeType interface library
XFW, IATA code for Hamburg Finkenwerder Airport
XG, Automobile made by Hyundai
XGA, Extended Graphics Array
XGE, Xoreax Grid Engine, Signal for "I Surrender"
XGG, IATA code for Gorom Gorom Airport
XGN, IATA code for Xangongo Airport
XGP, Extreme Game Player
XGR, IATA code for Kangiqsualujjuag (Georges River) Airport
xh, Xhosa language (ISO 639-1 code)
xho, Xhosa language (ISO 639-2 code)
XHTML, eXtensible Hypertext Markup Language
XHR, eXtra high Image resolution,XMLHTTPRequest
XI, Eleven (in Roman numerals)
XII, Twelve (in Roman numerals)
XIII, Thirteen (in Roman numerals)
XIV, Fourteen (in Roman numerals)
XIX, Nineteen (in Roman numerals)
XJ, Automobile made by Jaguar, Automobile made by Jeep
XJL, Amphibian aircraft made by Columbia, Automobile made by Jaguar
XJS, Automobile made by Jaguar
XK, Automobile made by Jaguar, Automobile made by Jeep, Kell blood group precursor
XKA, IATA code for Kantchari Airport
XKB, X keyboard extension
XKE, Automobile made by Jaguar
XKH, IATA code for Xieng Khouang Airport
XKR, Automobile made by Jaguar
XKS, IATA code for Kasabonika Airport
XKY, IATA code for Kaya Airport
XL, eXtra Large, Forty (in Roman numerals)
XML, eXtensible Markup Language
XMSF, eXtensible Modelling and Simulation Framework
