PowerShell/data/dicts/general.csv

1	TERM	MEANING
2	e.g.	'exempli gratia' in Latin, meaning: 'for example'
3	0D	obvious deed
4	1AM	Air Mechanic 1st Class
5	1D	One-Dimensional
6	2AM	Air Mechanic 2nd Class
7	2D	Two-dimensional
8	2LA	Two Letter Acronym
9	2Lt	2nd Lieutenant
10	3AM	Air Mechanic 3rd Class
11	3D	Three-Dimensional
12	3G	Third-generation mobile telephone system
13	3i	Investors In Industry (venture capitalists)
14	3M	Minnesota Mining and Manufacturing Company
15	4G	Fourth-generation mobile telephone system
16	4WD	Four-wheel drive
17	5D	Five-Dimensional
18	6D	Six-Dimensional
19	7D	Seven-Dimensional
20	8D	Eight-Dimensional
21	9D	Nine-Dimensional
22	A	Ampere
23	A/C	Air Conditioned/Conditioning
24	A10	Atlantic 10 Conference
25	A1C	Airman First Class
26	A4	European standard office paper size
27	aA	Attoampere
28	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)
29	AAAS	American Association for the Advancement of Science
30	AAAV	Advanced Amphibious Assault Vehicle
31	AADAC	Alberta Alcohol and Drug Abuse Commission
32	AADD	Adult attention deficit disorder
33	AADT	annual average daily traffic
34	AAFES	Army and Air Force Exchange Service
35	AAIS	advanced airborne interceptor simulator
36	AAM	air-to-air missile
37	AAMOF	as a matter of fact
38	AAN	American Academy of Nursing
39	AANEAS	Anglo-Australian Near-Earth Asteroid Survey
40	AAODL	Atmospheric Aerosols and Optics Data Library
41	AAPC	Accounting and Auditing Policy Committee
42	AARP	American Association of Retired Persons (now officially known only by the initials)
43	AASPEM	advanced air-to-air system performance evaluation model
44	AAT	Australian Antarctic Territory
45	AAV	Amphibious Assault Vehicle
46	AAWC	anti-air warfare commander
47	AB	Able Seaman (both the rank and the occupation),Alberta (postal symbol)
48	ABB	ASEA Brown Boveri (Swiss-Swedish multinational company)
49	ABBA	Agnetha,Benny,Björn,Anni-Frid (Swedish pop group)
50	ABC	the first three letters of the Latin script known as the alphabet
51	ABC	abstinence, be faithful, condoms
52	ABC	Active Body Control
53	ABC	airway, breathing, circulation
54	ABC	Alcoholic Beverage Commission
55	ABC	alien big cat
56	ABC	always be careful
57	ABC	American-born Chinese
58	ABC	anti-lock brake controller
59	ABC	atomic, biological, chemical
60	ABCS	(U.S.) Army Battle Command System
61	ABET	Accreditation Board for Engineering and Technology
62	ABFIST	Advanced Bradley Full Crew Interactive Skills Trainer
63	ABGI	Addington-Barker Group International
64	ABIN	Agência Brasileira de Inteligência (Brazilian Intelligence Agency)
65	ABL	American Basketball League
66	ABLE	AirBorne Law Enforcement (police air support unit)
67	ABMC	American Battle Monuments Commission
68	ABN	Australian Business Number (a number issued by the Australian government as registration of a business and used for taxation purposes)
69	ABPI	Association of the British Pharmaceutical Industry
70	ABRSM	Associated Board of the Royal Schools of Music
71	ABS	anti-lock braking system
72	ABSA	Amalgamated Banks of South Africa
73	ABSTRIPS	abstraction-based STRIPS
74	ABV	Alcohol by volume
75	ABW	Aruba (ISO 3166 trigram)
76	Ac	Actinium
77	AC	Adriamycin-Cyclophosphamide (chemotherapy),Air Conditioning,Aircraftman,Alternating Current,Altocumulus,ante Christum (Latin,'before Christ'; see BC),ante cibum (Latin,'before meals'),Associazione Calcio (Italian,'football (soccer) club')
78	aC	Attocoulomb
79	AC1	Aircraftman 1st Class
80	AC2	Aircraftman 2nd Class
81	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
82	ACAB	All cops are bastards
83	ACARS	Aircraft Communications Addressing and Reporting System
84	ACB	Asociación de Clubes de Baloncesto (Spanish for 'Association of Basketball Clubs')
85	ACCAC	Awdurdod Cymwysterau,Cwricwlwm ac Asesu Cymru (Qualifications,Curriculum and Assessment Authority for Wales)
86	ACCD	American Coalition of Citizens with Disabilities
87	ACCS	Air Communications and Control Squadron
88	ACDA	Arms Control & Disarmament Agency
89	ACDC	Alternating Current Direct Current,the name of an Australian rock music band,a term for a bisexual person,A/Cdre,Air Commodore
90	ACDT	Apple Certified Desktop Technician,Australian Central Daylight Time
91	ACES	Aerolíneas Centrales de Colombia (Spanish,'Central Colombian Airlines'),Auxiliary Campus Enterprises and Services of Alfred State College
92	ACF	Administration for Children and Families,American Car and Foundry,American Culinary Federation
93	ACHT	Average Call Hold Time
94	ACINT	Acoustic Intelligence
95	ACK	Acknowledge (telecommunications; cf. NAK)
96	ACL	Access Control List,Anterior cruciate ligament; the initialism can also refer to an injury to this ligament.,Atlantic Coast Line Railroad
97	ACLJ	American Center for Law and Justice
98	ACLOS	Automatic CLOS (missile control system)
99	ACLS	American Council of Learned Societies
100	ACLU	American Civil Liberties Union,American Communist Lawyers Union (pejorative slang for the above)
101	ACM	many,including Association for Computing Machinery; see entry
102	ACMC	(U.S.) Assistant Commandant of the Marine Corps
103	ACN	Airborne Communications Node,Australian Company Number (number issued by the Australian government as registration of a limited liability company)
104	ACNA	Anglican Church in North America
105	ACO	Airspace Control Order
106	ACOBA	Advisory Committee on Business Appointments
107	ACOG	American College of Obstetricians and Gynecologists
108	ACOM	(U.S.) Atlantic Command
109	ACORN	Association of Community Organizations for Reform Now
110	ACP	African,Caribbean and Pacific Group of States,Air Control Point
111	ACR	Advanced Concepts and Requirements
112	ACRI	African Crisis Initiative
113	ACRT	Advanced Concepts Research Tool simulator
114	ACS	Affiliated Computer Services (NYSE ACS),Alaska Communications Service,American Cancer Society,American Chemical Society,Association of Caribbean States,Australian Computer Society
115	ACSC	Army Command and Staff College (various nations)
116	ACST	American Cooperative School of Tunis
117	ACST	Australian Central Standard Time
118	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
119	ACTD	Advanced Concept Technology Demonstration
120	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)
121	ACTU	Australian Council of Trade Unions
122	ACU	American Conservative Union
123	ACUF	Advisory Committee on Undersea Features,American Conservative Union Foundation
124	AD	Anno Domini (Latin for 'In the year of our Lord')
125	ADA	Air Defence Artillery,American Dental Association,Assistant District Attorney,Americans with Disabilities Act (see also the similar but non-acronymic Ada programming language)
126	ADAC	Allgemeiner Deutscher Automobil-Club (German for 'General German Automobile Club')
127	ADAGE	Air Defense Air to Ground Engagement (simulation)
128	ADAP	AIDS Drug Assistance Program
129	ADAS	Asiago-DLR Asteroid Survey
130	ADAT	Alesis Digital Audio Tape (recording format)
131	ADATS	Agricultural Development and Training Society,Air Defence Anti-Tank System,Australian Defence Air Traffic System
132	ADB	Asian Development Bank
133	ADC	Aide De Camp,U.S. Air Defense Command (1946-1992),Apple Display Connector,Program Against Digital Counterfeiting of Currency
134	ADD	Analog Digital Digital (CD quality),Attention-Deficit Disorder,Administration on Developmental Disabilities
135	ADDIE	Analyze Design Develop Implement and Evaluate
136	ADDNS	Advanced Deployable Day/Night Simulation
137	ADGB	Air Defence of Great Britain
138	ADHD	Attention-Deficit Hyperactivity Disorder
139	ADHS	Attention-Deficit Hyperactivity Syndrome
140	ADI	Acceptable/Allowable Daily Intake
141	ADL	Anti-Defamation League
142	ADM	Administrative,,Admiral,and the U.S. Public Health Service Commissioned Corps,Archer Daniels Midland,Assistant Deputy Minister
143	ADOA	Air Defence Operations Area
144	ADP	Adenosine DiPhosphate,Army Doctrine Publication (UK,Canada,Australia),Automatic/Automated Data Processing
145	ADRG	Arc-second Raster Chart (ARC) Digitized Raster Graphics
146	ADS	Active Denial System, Astrophysics Data System, Attention Deficit Syndrome
147	ADSR	Attack,Decay,Sustain,Release (sound envelope specification)
148	ADT	Atlantic Daylight Time (UTC−3 hours)
149	ADTB	Army Doctrine and Training Bulletin
150	ADW	Air Defence Warning
151	AE	Armed Forces Africa/Canada/Europe/Middle East (postal symbol),United Arab Emirates (ISO 3166 digram),Artix Entertainment,American Eagle,A&E, Arts & Entertainment Network,the original name for the U.S. TV channel now known as A&E Network
152	AEDT	Australian Eastern Daylight Time
153	AEF	American Expeditionary Force
154	AEGIS	Airborne Early warning Ground environment Interface Segment (fake etymology)
155	AESR	Aeronautical Equipment Service Record
156	AEST	Australian Eastern Standard Time
157	aet	After extra time (Football)
158	AEW	Airborne Early Warning,Airborne Electronic Warfare
159	AF	Afghanistan (ISO 3166 digram),Air Force,As f*ck
160	aF	Attofarad
161	AFA	U.S. Air Force Academy,Asociación del Fútbol Argentino (Spanish for 'Argentine Football Association')
162	AFAIC	As Far As I'm Concerned
163	AFAICT	As Far As I Can Tell
164	AFAIK	As Far As I Know
165	AFAIR	As Far As I Remember/Recall
166	AFAM	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
167	AFATDS	Advanced Field Artillery Tactical Data System
168	AFCEA	Armed Forces Communications and Electronics Association
169	AFDB	African Development Bank
170	AFES	Automatic Fire Extinguishing System
171	AFG	Afghanistan (ISO 3166 trigram)
172	AFI	French Territory of the Afars and Issas (ISO 3166 trigram; obsolete since 1977),'Agencia Federal de Investigaciónes' (México)
173	AFIST	Abrams Full Crew Interactive Skills Trainer
174	AFJ	April Fool's Joke
175	AFK	Away From Keyboard (Internet chat abbreviation)
176	AFLAC	American Family Life Assurance Company of Columbus
177	AFO	Association of Field Ornithologists
178	AFOSR	U.S. Air Force Office of Scientific Research
179	AFP	Agence France-Presse (French,'French Press Agency'), Australian Federal Police
180	AFQT	Armed Forces Qualification Test
181	AFRC	Air Force Reserve Command
182	AFRL	Air Force Research Laboratory
183	AFROTC	Air Force Reserve Officer Training Corps
184	AFRRI	(U.S.) Armed Forces Radiobiology Research Institute
185	AFRTS	Armed Forces Radio and Television Service
186	AFSC	U.S. Air Force Staff College (obsolete; replaced with JFSC), U.S. Air Force Systems Command
187	AFSCN	U.S. Air Force Satellite Control Network
188	AFSPC	Air Force Space Command
189	AFT	American Farmland Trust
190	AFV	armoured fighting vehicle
191	AG	air gunner,Aktiengesellschaft (German,'incorporated'),Antigua and Barbuda (ISO 3166 digram),Assemblies of God
192	ag	Attogram
193	Ag	Silver (Latin for 'argentum')
194	AGA	AB Gas-accumulator ('ah-gah',Swedish company),Advanced Graphics Architecture
195	AGARD	Advisory Group for Aerospace Research and Development
196	AGARDograph	Advanced Guidance for Alliance Research and Development publication
197	AGASA	Akeno Giant Air Shower Array (cosmic ray detector)
198	AGB	Internal Nintendo initialism (Advanced Game Boy) for Game Boy Advance
199	AGC	Adjutant General's Corps (British Army)
200	AGDC	Australian Game Developers' Conference
201	AGI	Auxiliary Group Intelligence
202	AGM	Annual General Meeting
203	AGN	Active Galactic Nucleus
204	AGO	Angola (ISO 3166 trigram)
205	AGP	Accelerated Graphics Port
206	AGRICOLA	Agriculture Online Access
207	AGS	Alaska Ground Station (LandSat)
208	AGTS	Advanced Gunnery Training System
209	AGU	American Geophysical Union
210	AGW	Autonomous Guided Weapon
211	Ah	Ampere-hour
212	AH	Attack Helicopter
213	aH	Attohenry
214	AHA	American Heart Association
215	AHCPR	Agency for Health Care Policy and Research (obsolete; replaced with AHRQ)
216	AHEC	Australian Health Ethics Committee
217	AHPCRC	Army High Performance Computing Research Center
218	AHQ	Air Headquarters
219	AHRQ	Agency for Healthcare Research and Quality
220	AHS	American Housing Survey
221	AI	Air Interdiction,Amnesty International,Artificial Insemination,Artificial Intelligence,Anguilla (ISO 3166 digram)
222	AIA	Aerospace Industries Association,American Institute of Architects,Anguilla (ISO 3166 trigram)
223	AIAA	American Institute of Aeronautics and Astronautics
224	AIC	African Independent Church,Animal Identification Coordinator
225	AICD	Australian Institute of Company Directors
226	AICMFP	And I Claim My Five Pounds
227	AID	U.S. Agency for International Development
228	AIDS	Acquired Immune Deficiency Syndrome
229	AIM	Australian Institute of Management
230	AIMP	Aurora Incremental Modernization Project
231	AIPAC	American Israel Public Affairs Committee
232	AIR	Aircraft Inventory Record
233	AIRFA	American Indian Religious Freedom Act
234	AIRS	Aerometric Information Retrieval System (obsolete; replaced with AFS)
235	AIS	Australian Institute of Sport,Automatic Identification System
236	AISB	(British Society for the Study of) Artificial Intelligence and the Simulation of Behaviour
237	aJ	Attojoule
238	Ajax	Asynchronous JavaScript And XML
239	AJD	Astronomical Julian day
240	AJP	Allied Joint Publication
241	AJPW	All Japan Pro Wrestling
242	AK	Alaska (postal symbol)
243	aK	Attokelvin
244	AKA	Above knee amputation (orthopaedic usage)
245	AKDT	Alaska Standard Daylight Saving Time (UTC−8 hours)
246	AKP	Adalet ve Kalkınma Partisi (Turkish,'Justice and Development Party')
247	AKST	Alaska Standard Time (UTC−9 hours)
248	AL	Alabama (postal symbol),Albania (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)
249	Al	Aluminium
250	aL	Attolitre
251	ALA	Åland Islands (ISO 3166 trigram)
252	ALAP	As Long/Late As Possible
253	ALARM	Air-Launched Anti-Radar Missile
254	ALB	Albania (ISO 3166 trigram)
255	ALD	Accounting Line Designator (nuclear weapon targeting)
256	ALERT	Advanced Linked Extended Reconnaissance and Targeting,Attack and Launch Early Reporting to Theatre
257	ALF	Africa Leadership Forum,Alien Life Form (cf. ALF (TV series)),Animal Liberation Front
258	ALG	Algeria (IOC and FIFA trigram,but not ISO 3166)
259	ALGOL	ALGOrithmic Language
260	ALPA	Air Line Pilots Association
261	ALS	Amyotrophic Lateral Sclerosis
262	ALSHS	Abraham Low Self-Help Systems
263	ALSP	Aggregate Level Simulation Protocol
264	ALTE	Association of Language Testers in Europe
265	Am	Americium
266	AM	Amplitude Modulation and Ante Meridiem; see entry,Armenia (ISO 3166 digram)
267	AM1	Airman 1st class
268	AMCB	U.S. Army/Marine Corps Board
269	AMFOM	Advanced Missile Fly Out Model
270	AMFR	Age-specific Marital Fertility Rate,Amplitude Modulation Following Response
271	AMFRS	Advanced Multi-Function Radio Frequency System,Automatic Multisensor Feature-based Recognition System
272	AML	Acute Myeloid Leukaemia
273	AMLCD	Active Matrix Liquid Crystal Display
274	AMLO	Andrés Manuel López Obrador (Mexican politician),Anti-Money Laundering Office (Thailand government agency)
275	AMO	Atlantic Multidecadal Oscillation
276	AMOLED	Active-matrix organic light-emitting diode
277	AMOS	Advanced MOrtar System,Air Force Maui Optical and Supercomputing observatory
278	AMP	Adenosine MonoPhosphate,Automated Mission Planner
279	AMRAAM	Advanced Medium-Range Air-to-Air Missile
280	AMRDEC	U.S. Aviation & Missile Research,Development,& Engineering Center
281	AMS	Agriculture Marketing Service,American Mathematical Society
282	AMSAA	U.S. Army Materiel Systems Analysis Activity
283	AMSO	U.S. Army Model and Simulation Office
284	AMSU	Advanced Microwave Sounding Unit
285	AMTE	UK Admiralty Marine Technology Establishment (1977-1984)
286	AN	Netherlands Antilles (ISO 3166 digram)
287	aN	Attonewton
288	ANA	Administration for Native Americans,Afghan National Army,All Nippon Airways,Anti-Nuclear Anti-body,Australian National Airways,Australian Natives' Association
289	ANC	African National Congress
290	AND	Andorra (ISO 3166 trigram)
291	ANFO	Ammonium nitrate/fuel oil (explosive)
292	ANGLiCo	Air/Naval Gunfire Liaison Company
293	ANL	Argonne National Laboratory
294	ANM	Acoustic Noise Monitor
295	ANOVA	ANalysis Of VAriance
296	ANS	Applied and Natural Sciences
297	ANSI	American National Standards Institute
298	ANT	Netherlands Antilles (ISO 3166 trigram),Antigua and Barbuda (IOC trigram,but not ISO 3166 or FIFA)
299	ANTM	America's Next Top Model
300	ANTY	Acronyms,No Thank You
301	ANWR	Arctic National Wildlife Refuge /ˈænwɑr/
302	ANZ	Australia and New Zealand Banking Group
303	ANZAC	Australian and New Zealand Army Corps
304	AO	Angola (ISO 3166 digram),Approach Officer (submarine),Area of Operations
305	AOC	Air Operations Centre,Air Officer Commanding
306	AOD	Adrenalin O.D. (punk rock band)
307	AOI	Angle Of Incidence (Arab Organization for Industrialization)
308	AOL	America OnLine
309	AOR	Area of Responsibility
310	AOSTH	Adventures of Sonic the Hedgehog
311	AOTS	Attack of the Show!
312	AOU	American Ornithologists' Union
313	AP	Advanced Placement,Air Publication,Andhra Pradesh (Indian state code),Armed Forces Pacific (postal symbol),Associated Press,Auto Pilot
314	APAC	Asia Pacific
315	APB	All Points Bulletin (police jargon)
316	APC	Armoured Personnel Carrier, Armour Piercing Capped (ammunition)
317	APCNR	Armour-Piercing,Composite Non-Rigid (ammunition)
318	APCR	Armour-Piercing,Composite Rigid (ammunition)
319	APDS	Armour-Piercing,Discarding-Sabot (ammunition)
320	APEC	Asia Pacific Economic Cooperation
321	APEDS	AMSAA Performance Estimates Data System
322	APEX	Applied Physics Express
323	APFSDS	Armour-Piercing,Fin-Stabilised,Discarding Sabot (ammunition)
324	APHA	American Public Health Association
325	APHE	Armour-Piercing, High Explosive (ammunition)
326	APHIS	Animal and Plant Health Inspection Service
327	APL	Acute Promyeloid Leukaemia,Anti-Personnel Landmine,Applied Physics Laboratory (Johns Hopkins University)
328	APOD	Aerial Port (Airport) Of Debarkation
329	APOE	Aerial Port (Airport) Of Embarkation
330	APOLLO	Apache Point Observatory Lunar Laser-ranging Operation
331	APP	Allied Procedural Publication
332	APR	Annual Percentage Rate
333	AQIM	Al-Qaeda in the Islamic Maghreb
334	AR	Argentina (ISO 3166 digram),Arkansas (postal symbol),Armour,Arunachal Pradesh (Indian state code)
335	Ar	Argon
336	ARAG	Advanced Research and Assessment Group
337	ARB	Administrative Review Board
338	ARBA	Army Review Boards Agency
339	ARCA	Automobile Racing Club of America
340	ARCENT	United States Army Central Command
341	ARDA	Advanced Research and Development Activity (became DTO 2006)
342	ARE	UK Admiralty Research Establishment (-1991),United Arab Emirates (ISO 3166 trigram)
343	ARF	ASEAN Regional Forum
344	ARG	Argentina (ISO 3166 trigram)
345	ARH	Armed Reconnaissance Helicopter
346	ARI	Acute Respiratory Infection,U.S. Army Research Institute for the Behavioral and Social Sciences
347	ARL	UK Admiralty Research Laboratory (1921-1977),U.S. Army Research Laboratory,UIUC Aviation Research Laboratory
348	ARM	Anti-Radiation Missile,Adjustable-rate mortgage,Armenia (ISO 3166 trigram)
349	ARNet	Acquisition Reform Network
350	ARP	Applied Research Programme
351	ARPA	Advanced Research Projects Agency
352	ARRC	ACE Rapid Reaction Corps
353	ARRF	Allied Rapid Reaction Force
354	ARRL	American Radio Relay League
355	ARSC	Arctic Region Supercomputing Center
356	ARSPACE	U.S. Army Space Command
357	ART	Adaptive Resonance Theory, Anti-Retroviral Therapy
358	ARTCC	Air Route Traffic Control Center
359	ARWG	Army Research Working Group
360	AS	ActionScript
361	AS	American Samoa (postal symbol; ISO 3166 digram),Assam / Asom (Indian state code)
362	As	Arsenic
363	aS	Attosiemens
364	ASA	AcetylSalicylic Acid,American Standards Association,Army Security Agency,Atlantic Southeast Airlines
365	ASAP	As Soon As Possible
366	ASARS	Advanced Synthetic Aperture Radar System,Airborne Search and Rescue System
367	asbl	association sans but lucratif (French 'Non-profit organisation')
368	ASBO	Anti-Social Behaviour Order
369	ASCAP	American Society of Composers,Authors,and Publishers
370	ASCC	Army Service Component Commander,Automatic Sequence Controlled Calculator,Air Standardization Coordinating Committee
371	ASCII	American Standard Code for Information Interchange
372	ASD	(U.S.) Assistant Secretary of Defense,autism spectrum disorder
373	ASDIC	Allied Submarine Detection Investigation Committee (Sonar)
374	ASEAN	Association of Southeast Asian Nations
375	ASFAR	Americans for a Society Free of Age Restrictions
376	ASG	Area Support Group
377	ASIC	Australian Securities and Investments Commission,Aviation Security Identification Card
378	ASICS	Anima sana in corpore sano (Latin for 'A sound mind in a sound body') (athletic shoe manufacturer)
379	ASIO	Australian Security Intelligence Organisation,Audio stream input output
380	ASIP	Advanced System Improvement Program,Army Stationing and Installation Plan,Application-specific instruction-set processor
381	ASL	Above Sea Level,American Sign Language (also known as Ameslan),'Age,Sex,Location?' (Internet slang)
382	ASM	Air-to-Surface Missile,American Samoa (ISO 3166 trigram),American Society for Metals,American Society for Microbiology
383	ASMB	American Society for Matrix Biology,Adult Swim Message Board
384	ASME	American Society of Mechanical Engineers,American Society of Magazine ors
385	ASMP	Air-Sol Moyenne Portée missile (French 'Medium-range air to surface'),Asymmetric multiprocessing
386	ASN	Associate of Science in Nursing
387	ASOC	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
388	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
389	ASPI	Australian Strategic Policy Institute
390	ASR	Alkali-silica reaction,Anti Slip Regulation
391	ASRAAM	Advanced Short-Range Air-to-Air Missile
392	ASSC	Association for the Scientific Study of Consciousness
393	AST	Atlantic Standard Time (UTC−4 hours)
394	ASTIA	Armed Services Technical Information Agency
395	ASTM	American Society for Testing and Materials
396	ASTREA	Aerial Support To Regional Enforcement Agencies (sheriff's air support unit)
397	ASUW	AntiSUrface Warfare
398	ASVAB	Armed Services Vocational Aptitude Battery(taken by juniors in high school in the USA)
399	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)
400	ASW	AntiSubmarine Warfare
401	ASWORG	(U.S.) AntiSubmarine Warfare Operations Research Group
402	ASX	Advanced Stream Redirector,Australian Securities Exchange
403	AT	Anti-Tank,Austria (ISO 3166 digram),Advanced Technology (IBM Personal Computer/AT)
404	At	Astatine
405	aT	Attotesla
406	ATA	Advanced Technology Attachment (IBM Personal Computer),Afghan Transitional Authority,Allen Telescope Array,Antarctica (ISO 3166 trigram)
407	ATAC	Air Transportable Acoustic Communications
408	ATAPI	Advanced Technology Attachment Packet Interface
409	ATAT	Aiken Tactical Airsoft Team / Star Wars vehicle
410	ATB	Active Time Battle,British Antarctic Territory (ISO 3166 trigram; merged with AQ in 1979)
411	ATC	Air Training Corps, U.S. Air Transport Command (1942-1948), Athletic Trainer,Certified
412	ATESS	Aerospace and Telecommunications Engineering Support Squadron
413	ATF	French Southern Territories (ISO 3166 trigram),(U.S.) Bureau of Alcohol,Tobacco,Firearms and Explosives
414	ATG	Antigua and Barbuda (ISO 3166 and FIFA trigram)
415	ATGM	Anti-Tank Guided Missile
416	ATGW	Anti-Tank Guided Weapon
417	ATK	Attack
418	ATL	Atlanta,Georgia,the largest city and capital of Georgia
419	ATLAS	All-Terrain Lifter Army System,Assessment Tool for LAnd Systems
420	ATM	At The Moment
421	ATN	Dronning Maud Land (ISO 3166 trigram; merged with AQ in 1983)
422	ATO	Air Tasking Order,Australian Taxation Office
423	ATP	Adenosine TriPhosphate,Allied Tactical Publication,Ammunition Transfer Point
424	ATSD	(U.S.) Assistant Secretary of Defense
425	ATSDR	Agency for Toxic Substances and Disease Registry
426	ATV	All-Terrain Vehicle
427	ATWA	Air,Trees,Water,Animals
428	AU	African Union (was OAU before 2000),American University,Astronomical Unit,Australia (ISO 3166 digram)
429	Au	Gold (Latin 'Aurum')
430	AUC	Ab Urbe Condita / Anno Urbis Conditae (Latin for '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)
431	AUS	Australia (ISO 3166 trigram)
432	AUSCANNZUKUS	Australia,Canada,New Zealand,United Kingdom,United States (security designation)
433	Auslan	Australian Sign Language
434	AUT	Austria (ISO 3166 trigram)
435	AUTL	Army Universal Task List
436	AV	Audio-Visual,Aviation
437	Av	Aperture value (photographic mode)
438	aV	Attovolt
439	AVA	American Viticultural Area
440	AVB	Audio Video Bridging
441	AVDLR	Aviation Depot Level Repair
442	AVGP	Armoured Vehicle, General Purpose
443	AVIM	Aviation Intermediate Maintenance
444	AVLB	Armoured Vehicle Launched Body
445	AVM	Air Vice-Marshal, Arteriovenous malformation
446	AVO	Apprehended Violence Order
447	AVP	Arubaanse Volkspartij
448	AVP	Association of Volleyball Professionals
449	AVRE	Armoured Vehicle Royal Engineers
450	AVTB	Armoured Vehicle Test Bed,Aviation Test Bed
451	AVUM	Aviation Unit Maintenance
452	AVVO	Acute Vaginal Venereal Outbreak
453	AW	Aruba (ISO 3166 digram)
454	aW	Attowatt
455	AWA	American Wrestling Association
456	AWC	Air Warfare Centre
457	AWD	All Wheel Drive
458	AWE	Advanced Warfighting Experiment
459	AWP	Awaiting Parts (SM&R code)
460	AWSIM	Air Warfare SIMulation
461	AWST	Australian Western Standard Time
462	AWW	Above Water Warfare
463	AX	Åland Islands (ISO 3166 digram)
464	AXP	Ambulance eXchange Point
465	AYBABTU	All Your Base Are Belong To Us
466	AYU	As Yet Unknown
467	AZ	Arizona (postal symbol),Azerbaijan (ISO 3166 digram),Alkmaar Zaanstreek (Dutch football club)
468	AZE	Azerbaijan (ISO 3166 trigram)
469	AZUR	Actions en zone urbaine (French for: Urban Operations)
470	B2B	Business to Business
471	B2C	Business to Consumer
472	B2G	Business to Government
473	B2E	Business to Employee
474	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 , 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]
475	BB	Barbados (ISO 3166 digram),Boys' Brigade (Christian youth organization),Brigitte Bardot (actress),Bumblebee
476	BBB	Better Business Bureau,Blood-brain barrier
477	BBC	Breeding Bird Census,British Broadcasting Corporation,Bumper to Back of Cab (trucking measurement)
478	BBL	Be Back Later,Bird Banding Laboratory,British Basketball League
479	BBN	Bolt,Beranek and Newman
480	BBQ	Barbecue
481	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)
482	BBYO	B'nai B'rith Youth Organization
483	BC	Before Christ,Blind Copy (in emailers),Boston College,British Columbia (postal symbol)
484	BCA	Bachelor of Computer Application,Black Coaches & Administrators
485	BCC	Blind Carbon Copy
486	BCCI	Bank of Credit and Commerce International,Board of Control for Cricket in India,BCD , Binary-Coded Decimal
487	BEA	Banque extérieure d'Algérie,British European Airways (ancestor of British Airways),British Electricity Authority,bel
488	BEL	Belgium (ISO 3166 trigram)
489	BEN	Benin (ISO 3166 trigram)
490	BEO	Banquet Event Order
491	BERC	Business Environmental Resource Center
492	BER	Bit Error Rate
493	BH	Bahrain (ISO 3166 digram)
494	BHR	Bahrain (ISO 3166 trigram)
495	BNF	Backus-Naur Form (computing), British National Formulary
496	BNICE	Biological,Nuclear,Incendiary,Chemical,and Explosive Agents
497	BNP	British National Party,Banque Nationale de Paris,a predecessor to today's BNP Paribas
498	BNS	Bank of Nova Scotia
499	BNSF	Burlington Northern Santa Fe (also AAR reporting mark)
500	BO	Back Orifice,Biarritz Olympique (French rugby union club),Bolivia (ISO 3166 digram),Body odor
501	BOAC	British Overseas Airways Corporation (predecessor of British Airways)
502	BoAML	Bank of America Merrill Lynch
503	BOC	British Orthodontic Society, British Oxygen Company
504	BÖC	Blue Öyster Cult
505	BODMAS	Brackets,Orders,Division,Multiplication,Addition,Subtraction
506	BOFH	Bastard Operator From Hell
507	BOGA	Bend Over and Grab Ankles
508	BOGOF	Buy One,Get One Free
509	BOGs	Bunch of Guys
510	BOI	Balance Of Investment,Basis Of Issue
511	BOL	Bolivia (ISO 3166 trigram)
512	BOM	Base Object Model,Bill Of Materials,Block of the Month quilting term,Business opportunity meeting
513	BOPD	Barrel of Oil Per Day
514	BOS	Battlefield Operating System
515	BOT	Balance of Trade,Botswana (IOC and FIFA trigram,but not ISO 3166),Build Operate Transfer,Bank of Thailand,BP[edit]
516	BP	Battle Position,British Petroleum (today,BP does not officially stand for anything),Bp , Bishop,BPD , Bipolar Personality Disorder,BPM , Beats Per Minute,BPMo , Business Process Mobility
517	BPV	Battlefield Planning Visualization,Bovine papillomavirus
518	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)
519	BR	Brazil (ISO 3166 digram) ,Bihar (Indian state code),British Rail,Break Ranks (marching band term)
520	BRA	Brazil (ISO 3166 trigram)
521	BRAG	Bicycle Ride Across Georgia
522	BRASS	Breathe,Relax,Aim,Sight,Squeeze (acronym for using a rifle)
523	BRIC	Brazil, Russia, India, and China
524	BRICS	Brazil, Russia, India, China, and South Africa
525	BSA	Birmingham Small Arms (motorcycles company),Boy Scouts of America,Brigade Support Area
526	BSatCoP	Benjamin Sniddlegrass and the Cauldron of Penguins
527	BSE	Bovine Spongiform Encephalopathy (better known as mad cow disease)
528	BSN	Baloncesto Superior Nacional (Spanish,'National Superior Basketball'; top Puerto Rican league),Bank Simpanan Nasional (Malay,'National Savings Bank'; government-owned Malaysian bank)
529	BSNL	Bharat Sanchar Nigam Limited,Bachelor of Science in Nursing
530	BSoD	Blue Screen of Death (distinct from BSD)
531	BSP	Between-Show Promotion,Binary Space Partitioning,Board Support Package,British Standard Pipe (screw thread),Business-sponsored,Bone sialoprotein
532	BST	Binary search tree,Blended Sales Tax,Bovine somatotropin,British Summer Time
533	BSW	British Standard Whitworth (screw thread)
534	BSX	Bendigo Stock Exchange
535	BT	Baal teshuva (Hebrew,'master of repentance') ,used to describe a Jew who adopts Orthodox Judaism as an adult,Bathythermograph,Bhutan (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
536	Bt	Baronet,Bacillus thuringiensis
537	BTO	Built To Order
538	BTP	British Transport Police
539	BTR	Bronetransporter (БТР = Бронетранспортер '(Heavy) Armoured (Personnel) Transporter')
540	BTU	British Thermal Unit
541	BTW	By The Way
542	BU	Burma (ISO 3166 digram; obsolete since 1989)
543	BUAV	British Union for the Abolition of Vivisection
544	BUG-E	Battlefield Universal Gateway Equipment ('buggy')
545	BUNO	Bureau Number (aircraft serial number)
546	BUR	Burma (ISO 3166 trigram; obsolete since 1989)
547	BV	Background Vocals -,Battlefield Visualization ,,Bouvet Island (ISO 3166 digram)
548	BVD	Bradley,Voorhees & Day (underwear manufacturer)
549	BVR	Beyond Visual Range
550	BVT	Bouvet Island (ISO 3166 trigram)
551	B&W	Babcock & Wilcox, Black and White, Bowers & Wilkins
552	BW	Bring Wedges (ISO digram)
553	BW	Botswana (ISO 3166 digram)
554	BWA	Botswana (ISO 3166 trigram)
555	BWARS	Bees,Wasps & Ants Recording Society
556	BWC	Biological and Toxin Weapons Convention
557	BWR	Boiling-Water Reactor
558	BX	Base eXchange
559	BY	Belarus (ISO 3166 digram), Bavaria
560	BYOB	Bring Your Own Bottle (or beer, beverage, or booze) (multiple,but similar,meanings)
561	BYOC	Bring Your Own Computer (play on BYOB)
562	BYOF	Bring Your Own Flask
563	BYS	Byelorussian Soviet Socialist Republic (ISO 3166 trigram; obsolete since 1992)
564	BYU	Brigham Young University
565	BZ	Belize (ISO 3166 digram)
566	BZP	Benzylpiperazine
567	C	Carbon, Coulomb, One Hundred (in Roman numerals)
568	c	Centi
569	C2C	Consumer-To-Consumer electronic commerce, Cam-To-Cam internet chat
570	c2c	the British rail company formerly known as LTS Rail
571	Ca	Calcium
572	CA	California (postal symbol),Canada (ISO 3166 digram),Catalonia,Civil Affairs,Close Armour,Cocaine Anonymous,Computer Associates,Counter-Air,Cricket Australia
573	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
574	CAAT	Campaign Against Arms Trade,Center for Alternatives to Animal Testing
575	CAC	California Association of Criminalists,Chronic Asymptomatic [Disease] Carrier
576	CACM	Central American Common Market
577	CACM	Communications of the ACM
578	CADCAM	Computer-Aided Design/Computer-Aided Manufacturing
579	CADMID	Concept,Assessment,Demonstration,Manufacture,In service,Disposal (life cycle mnemonic)
580	CADPAT	CAnadian Disruptive PATtern
581	CAE	Canadian Aviation Electronics (originally),Certificate in Advanced English
582	CAEn	Close Action Engagement (constructive simulation)
583	CAF	Central African Republic (ISO 3166 trigram),Confederation of African Football (or French Confédération Africaine de Football)
584	CAFAD	Combined Arms For Air Defence
585	CAFDE	Canadian Association of Film Distributors and Exporters,Computer Aided Federation Development Environment
586	CAFE	Corporate Average Fuel Economy standard
587	CAI	Computer Assisted Instruction
588	CAIR	Council on American-Islamic Relations
589	CALABARZON	A region in the Philippines: CAvite,LAguna,BAtangas,Rizal,queZON
590	CALL	Center for Army Lessons Learned
591	CALM	Communications,Air-interface,Long and Medium range
592	CalPERS	California Public Employees' Retirement System
593	Caltrans	California Department of Transpotation
594	CAM	Chemical Agent Monitor,Complementary and alternative medicine,Computer-Aided Manufacturing,Crassulacean acid metabolism (type of photosynthesis)
595	CAMRA	CAMpaign for Real Ale
596	CAN	Canada (ISO 3166 trigram)
597	CANDU	CANada Deuterium Uranium (nuclear reactor design)
598	Canola	Canadian oil,low acid (referring to a specific cultivar of rapeseed bred to have a low erucic acid content)
599	CAPES	CAPability Evaluation System,Combined Arms Planning and Execution System
600	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)
601	CARMONETTE	Computerized Monte Carlo Simulation
602	CARP	Computed Air Release Point
603	CART	Championship Auto Racing Teams (now defunct)
604	CAS	Chemical Abstracts Service,Chief of the Air Staff,Close Air Support
605	CASA	Civil Aviation Safety Authority
606	CASE	Cellular ammunition storage equipment,Computer-Aided Software Engineering
607	CASS	Command Activated Sonobuoy System
608	CASTFOREM	Combined Arms and Support Task FORce Evaluation Model
609	CASTOR	Canadian Automatic Small Telescopes for Orbital Research
610	CAT	Community Acceptance Testing
611	CATK	Counterattack
612	CATS	Computer Active Technology Suspension
613	CATT	Combined Arms Tactical Trainer
614	CAV	Cavalry
615	CAVOK	Ceiling And Visibility OK ('Kav-okay')
616	CAW	Canadian Auto Workers (trade union)
617	CB	Citizens' Band radio
618	CBASSE	Commission on Behavioral And Social Sciences and Education ('sea bass')
619	CBC	Canadian Broadcasting Corporation,Christmas Bird Count,Cipher-Block Chaining,Cornering Brake Control
620	CBE	Commander of the Order of the British Empire,Cab Beside Engine (see truck)
621	CBF	Confederação Brasileira de Futebol (Portuguese,'Brazilian Football Confederation')
622	CBGB	Country,Blue Grass,and Blues (former New York City nightclub)
623	CBLA	Comparative bullet lead analysis
624	CBM	Canadian Baptist Ministries
625	CBM	Commodore Business Machines
626	CBML	Coalition Battle Management Language
627	CBN	CardsApp Brand Number
628	CBOL	Consortium for the Barcode of Life
629	CBOT	Chicago Board of Trade
630	CBP	Customs and Border Protection
631	CBR	Case-Based Reasoning
632	CBRN	Chemical,Biological,Radiological,or Nuclear (weapon or event)
633	CBRNE	Chemical,Biological,Radiological,Nuclear or [high-yield] Explosive (weapon or event)
634	CBS	Columbia Broadcasting System,Corps Battle Simulation
635	CBUS	Columbus,Ohio
636	CC	carbon copy
637	CCA	Counter Command Activity
638	CCC	Canterbury Clothing Company,Civilian Conservation Corps (U.S.,1930s and 1940s),Corpus Christi College,Oxford
639	CCCP	Central Committee of the Communist Party,Cyrillic for SSSR (Soyuz Sovetskikh Sotsialisticheskikh Respublik,Russian Союз Советских Социалистических Республик,Union of Soviet Socialist Republics)
640	CCD	Confraternity of Christian Doctrine (Catechism)
641	CCF	Cartoon Cartoon Fridays
642	CCG	Canadian Coast Guard,Collectible Card Game
643	CCGC	Canadian Coast Guard Cutter,Canadian Coast Guard College
644	CCGH	Canadian Coast Guard Hovercraft
645	CCGS	Canadian Coast Guard Ship,Christ Church Grammar School
646	CCH	Computer-Controlled Hostile
647	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)
648	CCII	Command and Control Information Infrastructure,Community Capital Investment Initiative
649	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
650	CCIT	Comité consultatif international télégraphique (French for International Telegraph Consultative Committee,merged with the CCIF in 1956 to form the CCITT)
651	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)
652	CCK	Cholecystokinin,Cocos (Keeling) Islands (ISO 3166 trigram)
653	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
654	CCOC	Canadian Children's Opera Chorus,Crosley Car Owners Club
655	CCOP	Coalition Common Operating/Operational Picture
656	CCP	Casualty Collection Point,Communications Checkpoint,Contingency Communications Package
657	CCPA	Consumer Credit Protection Act
658	CCR	Creedence Clearwater Revival
659	CCRAp	Canadian Conservative Reform Alliance party
660	CCRP	Command and Control Research Program
661	CCRTS	Command and Control Research and Technology Symposium
662	CCSCS	Consultative Committee for Space Data Systems
663	CCSCS	Coordinadora de Centrales Sindicales del Cono Sur
664	CCSIL	Command and Control Simulation Interface Language ('cecil')
665	CCSK	Cyclic Code Shift Keying
666	CCT	Current Commitments Team
667	Cd	Cadmium
668	cd	Candela
669	CD	Compact Disc
670	CD1	Cluster of Differentiation 1 (a small gene family)
671	CDA	UK Centre for Defence Analysis
672	CDD	Capabilities Development Document
673	CDE	Chemical Defence Equipment
674	CDIAC	Carbon Dioxide Information Analysis Center ('see-dee-ack')
675	CDipAF	Certified Diploma in Accounting and Finance
676	CDL	Commercial driver's license
677	CDM	Clean Development Mechanism (Kyoto protocol), Cold Dark Matter (astronomy)
678	CDMA	Code Division Multiple Access
679	CDMSII	Cryogenic Dark Matter Search II
680	Cdr	Commander
681	CDT	Central Daylight Time (UTC−5 hours)
682	Cdt	Commandant
683	Ce	Cerium
684	CE	Christian/Common Era
685	CEA	Campaign Effectiveness Analysis
686	CECOM	U.S. Army Communications and Electronics Command
687	CEDEX	Courrier d'entreprise à distribution exceptionnelle (French,'Company Mail with Exceptional Distribution'; 'exceptional' refers to the volume of mail)
688	CEGEP	Collège d'enseignement général et professionnel (French,'College of General and Vocational Education')
689	CEI	Competitive Enterprise Institute
690	CENTCOM	United States Central Command
691	CENTO	Central Treaty Organization (Baghdad Pact)
692	CENZUB	Centre d'entraînement aux actions en zone urbaine (French,'Urban Operations Training Centre')
693	CEO	Chief Executive Officer
694	CEP	Circular Error Probable
695	CEPT	Conférence européenne des administrations des postes et des télécommunications (French,'European Conference of Postal and Telecommunications Administrations')
696	CERCLA	U.S. Comprehensive Environmental Response,Compensation,and Liability Act (Superfund)
697	CERDEC	U.S. Communications-Electronics Research,Development and Engineering Center
698	CERGA	Centre de recherches en géodynamique et astrométrie (French,'Astrometry and Geodynamics Research Centre')
699	CERN	Centre européen pour la recherche nucléaire (French,'European Organization for Nuclear Research')
700	CERT	Computer Emergency Response Team
701	CESS	Centre for Earth Science Studies (India)
702	CEST	Central European Summer Time
703	CET	Central European Time
704	CEWC	Council for Education in World Citizenship
705	Cf	Californium
706	CF	Canadian Forces,Central African Republic (ISO 3166 digram)
707	CFA	Cat Fanciers' Association,Chartered Financial Analyst,Colour Filtering Array,County Fire Authority,Covering Force Area
708	CFAR	Christine's,Federal Acquisition Regulation
709	CFC	ChloroFluoroCarbon,Canadian Fish Company
710	CFES	Continuous Flow Electrophoresis System
711	CFFZ	Call For Fire Zone
712	CFG	Context-free grammar,Control flow graph
713	CFHT	Canada-France-Hawaii Telescope
714	CFI	Center for Inquiry (CSICOP)
715	CFL	Canadian Football League,Co-ordinated Fire Line
716	CFLCC	Coalition Forces Land Component Command
717	CFM	Certified Facilities Manager
718	CFO	Chief Financial Officer
719	CFP	Call for papers, College Football Playoff, Common Fisheries Policy (EU)
720	CFR	Code of Federal Regulations,Căile Ferate Române (Romanian,'Romanian Railways')
721	CFRP	Carbon fibre reinforced plastic
722	CFS	Chronic Fatigue Syndrome
723	CFSP	Common Foreign and Security Policy
724	CFU	Colony Forming Unit in Microbiology
725	CFV	Cavalry Fighting Vehicle
726	CFZ	Critical Friendly Zone
727	CG	Client Group,Computer Graphics,Controls Group,Republic of the Congo (ISO 3166 digram)
728	CGH	Comparative Genomic Hybridisation
729	CGIG	Cross-Government Implementation Group
730	CGO	Republic of the Congo (IOC and FIFA trigram,but not ISO 3166)
731	CGS	Chief of the General Staff
732	CGT	Capital Gains Tax
733	ch	ch(L) is used to denote the Chern character of a line bundle
734	CH	Chieftain tank,Switzerland (ISO 3166 digram; from Latin Confoederatio Helvetica)
735	CHAMPUS	(U.S.) Civilian Health and Medical Program of the Uniformed Services (now known as TRICARE)
736	CHAOS	Cambridge Heart Anti-Oxidant Study
737	CHAPS	Clearing House Automated Payment System
738	CHDK	Canon Hack Development Kit (Canon camera firmware hack)
739	CHE	Switzerland (ISO 3166 trigram; from Latin Confoederatio Helvetica)
740	CHI	Columbia Helicopters,Inc
741	CHiP	California Highway Patrol
742	CHIPS	Cosmic Hot Interstellar Plasma Spectrometer
743	CHL	Chile (ISO 3166 trigram)
744	CHLA	Core Historical Literature of Agriculture
745	CHN	China (ISO 3166 trigram)
746	CHOGM	Commonwealth Heads of Government Meeting
747	CHPSO	California Hospital Patient Safety Organization
748	CHRS	Canadian Heart Rhythm Society
749	CHT	Certified Hand Therapist
750	CI	Côte d'Ivoire (ISO 3166 digram),Counter-Intelligence,101 (in Roman numerals)
751	Ci	Curie
752	CIA	Cairo International Airport, Culinary Institute of America
753	CIAO	Critical Infrastructure Assurance Office,Component-Integrated ACE ORB
754	CIB	Complete In Box (Internet auction/trading listings)
755	CIBC	Canadian Imperial Bank of Commerce
756	CICS	Customer Information Control System (IBM mainframe software; 'kicks' or 'C-I-C-S')
757	CID	Certified Interior Designer
758	CIEF	Comité international d'enregistrement des fréquences (International Frequency Registration Board)
759	CIF	Cost,Insurance,and Freight (Paid) (shipping)
760	CIMMYT	Centro Internacional de Mejoramiento de Maíz Y Trigo (Spanish,'International Maize and Wheat Improvement Center')
761	CINC	Commander in Chief
762	CINEOS	Campo Imperatore Near-Earth Object Survey
763	CIO	Chief information officer,Congress of Industrial Organizations
764	CIPE	(European) Centre for International Political Economy
765	CIR	(Commander's) Critical Information Requirements
766	CIR	Corotating Interaction Region
767	CIS	Canadian Interuniversity Sport,Commonwealth of Independent States,Command and Information System,Communication and Information System
768	CISA	(U.S.) C4I Integration Support Activity
769	CISB	Complete In Sealed Box (Internet auction/trading listings)
770	CISPR	Comité international spécial des perturbations radioélectriques (Special International Committee on Radio Interference)
771	CISSP	Certified Information Systems Security Professional
772	CITES	Convention on International Trade in Endangered Species (of Wild Fauna and Flora) ('sigh-tease')
773	CIV	Côte d'Ivoire (ISO 3166 trigram)
774	CIVETS	Colombia,Indonesia,Vietnam,Egypt,Turkey,South Africa (economics)
775	CIVPOP	Civilian Population
776	CIWS	Close-In Weapon System
777	CJ	Criminal Justice
778	CJC	Canadian Jewish Congress,Cold Junction Compensation
779	CJCS	Chairman of the Joint Chiefs of Staff
780	CJD	Chronological Julian Day,Creutzfeldt-Jakob Disease
781	CJO	Chief of Joint Operations
782	CJTF	Combined Joint Task Force
783	CK	Cook Islands (ISO 3166 digram)
784	CKA	commonly known as, Canada Kicks Ass
785	CKND	Codename: Kids Next Door
786	CL	Chile (ISO 3166 digram),Co-ordination Line,One Hundred and Fifty (in Roman numerals)
787	Cl	Chlorine
788	CLA	Clutterers Anonymous
789	CLEC	Competitive Local Exchange Carrier
790	CLEMARS	California Law Enforcement Mutual Aid Radio System
791	CLIC	Compact LInear Collider
792	CLO	Cornell Lab of Ornithology
793	CLOS	Command to Line-Of-Sight (missile control system)
794	CLPFC	CentroLateral PreFrontal Cortex
795	CLRP	College Loan Repayment Program
796	CM	Cameroon (ISO 3166 digram),Cruise Missile,Nine Hundred (in Roman numerals)
797	Cm	Curium
798	CMA	U.S. Chemical Materials Agency,Country Music Association (also used to refer to the organization's annual awards),Crystal Meth Anonymous
799	CMHC	Canada Mortgage and Housing Corporation
800	CMIIAW	Correct me if I am wrong
801	CMIS	Common management information service
802	CMJ	Christopher Martin-Jenkins (BBC sports commentator)
803	CMLL	Consejo Mundial de Lucha Libre (Spanish,'Worldwide Wrestling Council'—Mexican professional wrestling promotion)
804	CMMC	Corps Materiel Management Centre
805	CMML	Chronic MyeloMonocytic Leukemia,Continuous Media Markup Language
806	CMOS	Canadian Meteorological and Oceanographic Society,(The) Chicago Manual of Style,Complementary Metal Oxide Semiconductor
807	CMP	Common [Operating/Operational] Maritime Picture
808	CMPD	Charlotte Mecklenburg Police Department
809	CMPD	Chronic Myeloproliferative Disease
810	CMR	Cameroon (ISO 3166 trigram),Coaxial Main Rotors (helicopter type)
811	CMS	Centers for Medicare and Medicaid Services,The Chicago Manual of Style
812	CMT	Country Music Television
813	CMU	Carnegie Mellon University,Central Michigan University,Concrete Masonry Unit
814	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)
815	CMYK	Cyan Magenta Yellow Key/blacK (colour model)
816	CN	Canadian National (railway; also the AAR reporting mark for said company),China (ISO 3166 digram)
817	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
818	CNBC	Consumer News and Business Channel
819	CND	Campaign for Nuclear Disarmament,Computer Network Defence
820	CNE	Canadian National Exhibition,Computer Network Exploitation,Certified Network Engineer
821	CNF	Cost and Freight
822	CNI	Clinical Nursing Intern
823	CNI	Communications,Navigation and Identification
824	CNN	Cable News Network,Cellular Nonlinear Network
825	CNV	Copy-Number Variable (genetics)
826	Co	Cobalt
827	COB	Close Of Business [day]
828	COBRA	Consolidated Omnibus Budget Reconciliation Act of 1985
829	COD	Cash On Delivery,Democratic Republic of the Congo (ISO 3166 trigram)
830	CoDA	Co-Dependents Anonymous
831	COGENT	Cognitive Objects within a Graphical EnviroNmenT
832	COIL	Chemical Oxygen Iodine Laser
833	COK	Cook Islands (ISO 3166 trigram)
834	COL	Colombia (ISO 3166 trigram)
835	COLA	Cost Of Living Adjustment
836	CONAD	U.S. Continental Air Defense Command
837	CONMEBOL	Confederación Sudamericana de Fútbol or Confederação Sul-Americana de Futebol (respectively Spanish and Portuguese for 'South American Football Confederation')
838	CONUS	Continental United States
839	COO	Chief Operating Officer
840	COPE	U.K. Committee On Publication Ethics
841	COPUS	U.K. Committee on the Public Understanding of Science
842	CORD	Common Operational Requirements Document
843	CORE	Consortium for Oceanographic Research and Education
844	COS	Cooper Ornithological Society
845	COSER	COoperative SERvice
846	CoT	Car of Tomorrow (former NASCAR race car design)
847	COTS	Commercial Off The Shelf
848	CP	Canadian Pacific,Check Point,Command Post,Club Penguin
849	CPA	Certified Public Accountant
850	CPAC	Conservative Political Action Conference,Cable Public Affairs Channel ('see-pack')
851	CPCU	Certified Property Casualty Underwriter
852	CPD	Capabilities Production Document
853	CPE	Certificate of Proficiency in English
854	CPE	Certified Professional Ergonomist
855	CPF	Calibration Parameter File,Canadian Patrol Frigate
856	CPG	Clinical Practice Guideline
857	CPIM	Certification on Production and Inventory Management
858	CPIR	Computationally-Private Information Retrieval
859	CPON	Certified Pediatric Oncology Nurse
860	CPPCC	Chinese People's Political Consultative Conference
861	CPR	Canadian Pacific Railway
862	CPR	Cardiopulmonary resuscitation
863	CPSM	Continuous Phase Shift Modulation
864	CPSU	Communist Party of the Soviet Union
865	CPT	Contingency Planning Team
866	CPU	Contract Postal Unit
867	CPV	Cape Verde (ISO 3166 trigram)
868	CPX	Command Post eXercise
869	CQ	Carrier Qualification,Central Queensland,Charge of Quarters,Congressional Quarterly,Constellation Airlines (IATA airline designator)
870	CQD	Close Quarters Drill (Morse distress code preceding SOS: CQ 'calling all stations',D 'Distress'; often incorrectly interpreted as 'Come Quick,Distress')
871	Cr	Chromium
872	CR	Costa Rica (ISO 3166 digram)
873	CRAM	Combined Radiometric Correction Model
874	CRD	Capstone Requirements Document
875	CREB	Cyclic AMP-response Element Binding (protein)
876	CREEP	Committee for the Re-Election of the President,a pejorative nickname used by opponents
877	CREN	Christian Real Estate Network Real Estate Association
878	CRI	China Radio International,Costa Rica (ISO 3166 trigram)
879	CRIPL	Consolidated Remain-In-Place List
880	CRM	Cardiac Rhythm Management,Customer Relationship Management
881	CRO	Croatia (IOC and FIFA trigram,but not ISO 3166)
882	CRP	Committee for the Re-Election of the President,Control and Reporting Post
883	CRT	Cardiac Resynchronization Therapy,Cathode Ray Tube,Chinese Remainder Theorem
884	CRTC	Canadian Radio-television and Telecommunications Commission
885	Cs	Caesium
886	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
887	CSAM	Child Sexual Abuse Material
888	CSC	Closed Spacelike Curve (relativity),Compact system camera,Computer Sciences Corporation,Computer Security Centre,CSCC Canadian Society of Clinical Chemists
889	CSERIAC	(U.S. DoD) Crew Systems Ergonomics Information Analysis Center
890	CSG	Corps Support Group
891	CSI	see entry
892	CSICOP	Committee for the Scientific Investigation of Claims of the Paranormal (became the Committee for Skeptical Inquiry in 2006)
893	CSIP	Commercial Stable Image Platform (AMD)
894	CSIS	Canadian Security Intelligence Service ('seessiss'),(U.S.) Center for Strategic & International Studies
895	CSK	Czechoslovakia (ISO 3166 trigram; obsolete since 1993)
896	CSL	U.K. Central Science Laboratory
897	CSPI	Center for Science in the Public Interest
898	CSR	Control Supply Rate
899	CSR	Corporate Social Responsibility
900	CSRC	Conflict Studies Research Centre
901	CSRF	Cross-Site Request Forgery
902	CST	Central Standard Time (UTC−6 hours)
903	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)
904	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')
905	CTBT	Comprehensive [Nuclear] Test Ban Treaty
906	CTDB	Compact Terrain Data Base (file format)
907	CTE	Canton and Enderbury Islands (ISO 3166 trigram; obsolete 1984),Chronic traumatic encephalopathy
908	CTGF	connective tissue growth factor
909	CTI	Co-operative Target Identification
910	CTIL	Critical Tracked Items List
911	CTIS	Central Tire Inflation System
912	CTMS	Clinical Trial Management System
913	CTO	Chief Technical Officer,Chief Technology Officer
914	CTS	Clear-To-Send,Collective Training Standards,Communications Technology Service,Contract Technical Services,Conversation Time Sharing,COSMIC Top Secret
915	CTSS	Compatible Time-Sharing System
916	CTU	Counter Terrorist Unit (fictional branch of the Central Intelligence Agency in the television action series 24)
917	CTVT	Canine Transmissible Venereal Tumour
918	CU	Carrie Underwood, Cuba (ISO 3166 digram)
919	Cu	Copper (Latin 'Cuprum')
920	CUB	Cuba (ISO 3166 trigram)
921	CUCV	Commercial Utility Cargo Vehicle
922	CUNY	City University of New York ('CUE-knee')
923	CUPE	Canadian Union of Public Employees ('CUE-pee')
924	CUPS	Common Unix Printing System
925	CUPW	Canadian Union of Postal Workers
926	CUREA	Consortium for Undergraduate Research and Education in Astronomy
927	CuW	Copper-tungsten pseudo-alloy (from the chemical symbols of the two component elements)
928	CUW	Curaçao (ISO 3166 trigram)
929	CV	curriculum vitae (résumé)
930	CVLL	Crypto Variable Logic Label
931	CVSD	Continuous Variable Slope Delta (modulation)
932	CVT	Continuously Variable Transmission
933	CW	Calendar Week, or: Continuous Wave, or: Clothes Washer
934	CWA	Communications Workers of America
935	CWC	Chemical Weapons Convention
936	CWRU	Case Western Reserve University
937	CWS	Canadian Wildlife Service
938	CX	Christmas Island (ISO 3166 digram),or: One Hundred and Ten (in Roman numerals)
939	CXR	Christmas Island (ISO 3166 trigram)
940	CY	Calendar year, or: Cyprus (ISO 3166 country code digram)
941	CYM	Cayman Islands (ISO 3166 trigram)
942	CZE	Czech Republic (ISO 3166 trigram)
943	CZF	(Christian Zombie Fan)
944	CZMA	(US) Coastal Zone Management Act
945	d	Deci
946	D	Deuterium
947	DA	Debtors Anonymous,U.S. Department of the Army,District Attorney
948	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')
949	DAES	Defence Acquisition Executive Summary,(UK MoD) Directorate of Analysis,Experimentation and Simulation
950	DAF	Dissolved Air Flotation,a technique used in water treatment
951	DAFIF	Digital Aeronautical Flight Information File
952	DAK	Disney's Animal Kingdom
953	DAO	Division Ammunition Officer
954	DAQ	Data acquisition,Delivered Audio Quality
955	DARE	Drug Abuse Resistance Education
956	DARO	(U.S.) Defense Airborne Reconnaissance Office
957	DARPA	U.S. Defense Advanced Research Projects Agency
958	DART	Disaster Assistance Response Team,Dublin Area Rapid Transit
959	DAS	Defensive Aids Suite
960	DASD	(U.S.) Deputy Assistant Secretary of Defense
961	DASL	Datapoint's Advanced Systems Language
962	DAU	(U.S.) Defense Acquisition University
963	DAWN	(U.S.) Drug Abuse Warning Network
964	dB	Decibel
965	DB	Deutsche Bahn
966	Db	Dubnium
967	DBA	De Bellis Antiquitatis (miniature wargaming rules)
968	DBBL	(U.S. Army Simulation Center) Dismounted Battlespace Battle Laboratory
969	DBDO	Desert BDO
970	DBE	Dame Commander of the Order of the British Empire
971	DBF	Detection By Fire (weapon launch signature)
972	DBR	De Bellis Renationis (miniature wargaming rules)
973	DBRA	Davis-Bacon Related Acts
974	DBS	Direct Broadcast Services (television)
975	DC	da capo,Italian Democrazia Cristiana,Digital Compass,Direct Current,District of Columbia (postal symbol),Douglas Aircraft Company,Dublin Core,Duty Cycle
976	DCA	Defensive Counter Air,Drum Corps Associates,DiChloroAcetate
977	DCAA	(U.S.) Defense Contract Audit Agency
978	DCAS	Devon and Cornwall Archery Society
979	DCC	Dallas Christian College
980	DCD	[Organ] Donation after Cardiac Death
981	DCE	Data Communication Equipment
982	DCFC	Death Cab for Cutie
983	DCI	Detection,Classification and Identification,Drum Corps International,Duellists' Convocation International,now known simply by the initials
984	DCL	Disney Cruise Line
985	DCN	Deacon
986	DCOM	Disney Channel Original Movie
987	DCSOPS	Deputy Chief of Staff for Operations and plans
988	DCW	Digital Chart of the World
989	DCYSC	Discovery Channel Young Scientist Challenge
990	DD	due diligence and dear daughter (increasingly prevalent on social mailing lists,blogs,and bulletin boards)
991	DDA	Deputy District Attorney
992	DDN	U.S. Defense Data Network
993	DDS	Doctor of Dental Surgery
994	DDT	Dichloro-Diphenyl-Trichloroethane (insecticide),Dynamic Debugging Tool (computing),DE[edit]
995	DE	Delaware (postal symbol),Germany (ISO 3166 digram)
996	DEA	Drug Enforcement Administration
997	DEA	Drug Enforcement Agency
998	DEC	Department of Environmental Conservation,Digital Equipment Corporation,Disasters Emergency Committee
999	DeCA	(U.S.) Defense Commissary Agency
1000	DEFCON	Defence readiness condition
1001	DEFRA	(UK) Department for Environment,Food and Rural Affairs
1002	DELT	Dual Ended Line Test (ing)
1003	DEM	Data Exchange Mechanism,Digital Elevation Model
1004	DEN	Denmark (IOC and FIFA trigram,but not ISO 3166)
1005	DEPSECDEF	(U.S.) Deputy Secretary of Defense
1006	DERA	British Defence Evaluation and Research Agency (1995-2001)
1007	DES	Deep Ecliptic Survey
1008	DEU	Germany (ISO 3166 trigram)
1009	DF	Direct Fire,Direction Finding,Distrito Federal (Spanish and Portuguese for 'federal district')
1010	DFAS	(U.S.) Defense Finance and Accounting Service
1011	DFB	Deutscher Fußball-Bund (German for 'German Football Association')
1012	DFCB	Data Format Control Book
1013	DfID	UK Department for International Development
1014	DFM	Discrete Field Model see Superluminal motion
1015	DFM	Dynamic Flowgraph Methodology
1016	DFSP	Dermatofibrosarcoma protuberans
1017	DfT	UK Department for Transport
1018	DFTBA	Don't Forget To Be Awesome,a term commonly used by the Vlogbrothers
1019	DG	Dei gratia (Latin,'by the grace of God'),Director-General,Data General
1020	DGA	Direction générale des armées (French 'Armed Forces General Directorate')
1021	DGPS	Differential GPS
1022	DGZ	Desired Ground Zero
1023	DHA	DocosaHexaenoic Acid
1024	DHHS	(U.S.) Department of Health and Human Services
1025	DHRA	(U.S.) DoD Human Resources Activity
1026	DHS	U.S. Department of Homeland Security
1027	DHSS	UK Department of Health and Social Security
1028	DHTFYSS	U.S. Don't Have Time For You Silly S****
1029	DHY	Dahomey (ISO 3166 trigram; became BEN for Benin in 1977)
1030	DIA	U.S. Defense Intelligence Agency
1031	DIAC	Department of Immigration and Citizenship (Australia) [1]
1032	DiC	Design Island Centre (computing usually used in a teaching situation)
1033	DICASS	DIrectional Command Activated Sonobuoy System
1034	DIFAR	DIrectional Frequency Analysis and Recording
1035	DIME	Dense Inert Metal Explosive
1036	DIP	Dual In-line Package (electronics)
1037	DIPS	Defense independent pitching statistics
1038	DIR	Defence Industrial Research
1039	DISCOM	Division Support Command
1040	DISE	Deployable Intelligence Support Element
1041	DISSTAF	DIS Search and Target Acquisition Fidelity experiment
1042	DITY	Do-It-Yourself
1043	DIVAD	Division Air Defence
1044	DIY	Do It Yourself
1045	DJI	Djibouti (ISO 3166 trigram)
1046	DK	Denmark (ISO 3166 digram)
1047	DL	Dexter's Laboratory
1048	DLIC	Detachment Left-In-Contact
1049	DLIR	Depot-Level Inspection and Repair
1050	DLPMC	DorsoLateral PreMotor Cortex
1051	DLRP	Data Link Reference Point
1052	DLS	Deep Lens Survey
1053	DLSA	(U.S.) Defense Legal Services Agency
1054	DLSc	Diploma in Library Science
1055	DLTBGYD	Don't let the bastards grind you down
1056	DMC	(U.S.) Defense Management Council
1057	DMCA	Digital Millennium Copyright Act
1058	DMM	Digital Multimeter
1059	DMOC	Distributed Mission Operations Centre
1060	DMPA	(U.S.) Defense Medical Programs Activity
1061	DMPFC	DorsoMedial PreFrontal Cortex
1062	DMPK	Drug Metabolism and Pharmacokinetics
1063	DMRB	Design Manual for Roads and Bridges
1064	DMS	U.S. Defense Message System
1065	DMSP	U.S. Defense Meteorological Satellite Program
1066	DMT	Dimethyltryptamine
1067	DMV	Department of Motor Vehicles
1068	DMZ	DeMilitarized Zone
1069	DN	Deacon
1070	DNAW	Day Night All Weather
1071	DNDi	Drugs for Neglected Diseases initiative
1072	DNDO	U.S. Domestic Nuclear Detection Office
1073	DNK	Denmark (ISO 3166 trigram)
1074	DNM	Defence Nuclear Material
1075	DNR	Do Not Resuscitate
1076	DNS	Domain Name System
1077	DO	Dominican Republic (ISO 3166 digram),Doctor of Osteopathic Medicine
1078	DOA	Dead On Arrival,Dead or Alive
1079	DOB	Date Of Birth
1080	DOD	U.S. Department of Defense
1081	DODAF	U.S. Department of Defense Architectural Framework
1082	DoDD	U.S. Department of Defense Directive
1083	DoDEA	(U.S.) Department of Defense Education Activity
1084	DOE	U.S. Department of Energy
1085	DOHC	Dual-OverHead-Cam engine
1086	DOI	U.S. Department of the Interior
1087	DORA	Defence of the Realm Act
1088	DOS	Density of State
1089	DOTA	short-form for DEFENSE OF THE ANCIENTS a popular online epic game
1090	DotD	Deal of the Day (marketing gimmick)
1091	DOW	Died of Wounds
1092	DP	Division de production (Algerian petroleum company)
1093	DPA	UK Defence Procurement Agency
1094	DPCO	Double-Pole Change Over
1095	DPDT	Double-Pole Double-Throw
1096	DPI	Dots Per Inch
1097	DPICM	Dual-Purpose Improved Conventional Munition
1098	DPKO	UN Department for Peacekeeping Operations
1099	DPMO	(U.S.) Defense Prisoner of War/Missing Personnel Office
1100	DPPDB	Digital Point Positioning Database
1101	DPRK	Democratic People's Republic of Korea
1102	DPST	Double-Pole Single-Throw
1103	DQ	Dairy Queen
1104	DR	Dead Reckoning,Danmarks Radio (Danish Broadcasting Corporation)
1105	DRC	Democratic Republic of the Congo
1106	DRDC	Defence Research & Development Canada
1107	DREA	Defence Research Establishment Atlantic (obsolete 2002)
1108	DRES	Defence Research Establishment Suffield (obsolete 2002)
1109	DRET	Defence Research Establishment Toronto (obsolete 2002)
1110	DREV	Defence Research Establishment Valcartier (obsolete 2002)
1111	DRIC	(U.S.) Defense Research Information Center
1112	DRMS	(U.S.) Defense Revitalization and Marketing Service
1113	DRPR	Drawing Practices
1114	DRT	Document Related Technologies
1115	Ds	Darmstadtium
1116	DSAS	Disney Sing Along Songs
1117	DSB	(U.S.) Defense Science Board
1118	DSCS	U.S. Defense Satellite Communications System
1119	DSCSOC	DSCS Operations Center
1120	DSE	Dry Sheep Equivalent
1121	DSG	Direct-Shift Gearbox
1122	DSID	Dismounted Soldier Identification System
1123	DSL	Digital Subscriber Line
1124	DSLR	Digital single-lens reflex (camera)
1125	DSM	Diagnostic and Statistical Manual of Mental Disorders
1126	DSN	Deep Space Network
1127	DSPL	Design Specialists and Plans Language
1128	DSR	Deformed Special Relativity
1129	DST	Daylight Saving Time
1130	DSTL	British Defence Science and Technology Laboratory
1131	DSWA	(U.S.) Defense Special Weapons Agency
1132	DTA	Dental Technologists Association
1133	DTD	Digital Terrain Data
1134	DTG	Date-Time Group
1135	DTH	Direct To Home (television)
1136	DTI	UK Department of Trade and Industry
1137	DTIC	(U.S.) Defense Technical Information Center
1138	DTL	Diode-Transistor Logic (electronics)
1139	DTMF	Dual-tone multi-frequency signaling
1140	DTO	Disruptive Technology Office (was ARDA)
1141	DTR	Determine The Relationship
1142	DTSA	(U.S.) Defense Technology Security Administration
1143	DUMBO	Down Under the Manhattan Bridge Overpass (Brooklyn neighborhood)
1144	DUSD	(U.S.) Deputy Under-Secretary of Defense
1145	DVLC	UK Driver and Vehicle Licencing Centre
1146	DVM	Doctor of Veterinary Medicine
1147	DVO	Direct View Optics
1148	DVOM	Digital Volt-Ohm Meter
1149	DVP	various meanings (disambiguation page)
1150	DW	Drum Workshop
1151	DWIM	Do What I Mean
1152	DWM	Doctor Who Magazine
1153	DWTS	Dancing with the Stars
1154	DWW	Down with Webster
1155	DXA	Dual-energy X-ray Absorptiometry
1156	DXM	DeXtroMethorphan
1157	DY	Dahomey (ISO 3166 digram; obsolete since 1977)
1158	Dy	Dysprosium
1159	DZA	Algeria (ISO 3166 trigram)
1160	E	East
1161	EABU	Explain Acronyms Before Use
1162	EAC	Echelons Above Corps
1163	EAPC	Euro-Atlantic Partnership Council
1164	EAST	Experimental Advanced Superconducting Tokamak
1165	EBD	Electronic Brake Distribution
1166	EBE	Extraterrestrial Biological Entity
1167	EBSA	Employee Benefits Security Administration
1168	EBW	Electron Beam Welding
1169	EBW	Exploding BridgeWire
1170	ECASS	European Centre for Analysis in the Social Sciences [1]
1171	ECBR	European Coalition for Biomedical Research
1172	ECCM	Electronic Counter-Counter-Measures
1173	ECFS	Electronic Case Filing System
1174	ECG	Electrocardiogram
1175	ECHR	European Court on Human Rights
1176	ECJ	European Court of Justice
1177	ECL	Emitter Coupled Logic (electronics)
1178	ECommHR	European Commission on Human Rights
1179	ECSC	European Coal and Steel Community (distant ancestor of the EU)
1180	ECT	ElectroConvulsive Therapy
1181	ECtHR	European Court of Human Rights
1182	EDA	European Defence Agency
1183	EDAC	Error Detection And Correction
1184	EDCS	Environmental Data Coding Specification
1185	EDH	Eastman Dental Hospital
1186	EDSA	Epifanio de los Santos Avenue (a major thoroughfare in Manila with great significance to post-1980 Philippines history)
1187	EDT	Eastern Daylight Saving Time (UTC−4 hours)
1188	EEC	European Economic Community (predecessor of the EU)
1189	EEG	ElectroEncephaloGram
1190	EENT	End Evening Nautical Twilight
1191	EEO	Equal Employment Opportunity
1192	EEOC	(U.S.) Equal Employment Opportunity Commission
1193	EEZ	Economic Exclusion Zone or Exclusive Economic Zone
1194	EFF	Electronic Frontier Foundation
1195	EFL	English as a Foreign Language
1196	EFM	Enterprise Feedback Management
1197	EFOA	European Fuel Oxygenates Association
1198	EFSA	European Food Safety Authority
1199	EFT	Electronic Fund Transfer
1200	EFV	Expeditionary Fighting Vehicle
1201	EG	Egypt (ISO 3166 digram)
1202	EGCG	EpiGalloCatechin-3-Gallate
1203	EGIS	Erieye Ground Interface Segment
1204	EGRET	Energetic Gamma-Ray Experiment Telescope
1205	EGY	Egypt (ISO 3166 trigram)
1206	EHF	Extremely High Frequency
1207	EHR	Equipment History Record
1208	Ei	Exbi
1209	EIA	Environmental Impact Assessment
1210	EIAH	Encyclopedia of Iranian Architectural History
1211	EIAH	Environnements Informatiques pour l'Apprentissage Humain
1212	EIC	East India Company
1213	EICS	East India Company's Service
1214	eID	electronic ID
1215	EIRP	Effective Isotropic Radiated Power
1216	EIS	Environmental Impact Statement
1217	EJ	Exajoule
1218	EK	Exakelvin
1219	EKG	Electrocardiogram (from German Elektrokardiogramm)
1220	EKMS	Electronic Key Management System
1221	EL	Exalitre
1222	ELINT	Electronic Intelligence
1223	ELL	English Language Learner
1224	ELM	Edge-Localised Mode (plasma physics)
1225	ELO	Electric Light Orchestra
1226	ELSS	Emergency Life Support Stores
1227	EM	ElectroMagnetism/ElectroMagnetic
1228	Em	Exametre
1229	EMA	European Medicines Agency
1230	EMCON	(Electromagnetic) Emissions Control
1231	EMDG	Euro-Missile Dynamics Group
1232	EMDR	Eye Movement Desensitisation and Reprocessing
1233	EMEA	Europe,Middle East and Africa
1234	EMG	ElectroMyoGraph
1235	EMP	ElectroMagnetic Pulse
1236	EMS	Emergency Medical Services
1237	EMT	Emergency Medical Technician
1238	EN	Corps of Engineers,Exanewton
1239	ENCODE	Encyclopedia of DNA Elements (human genome data project)
1240	ENE	East North-East
1241	ENG	England (FIFA trigram; not eligible for an ISO 3166 or IOC trigram)
1242	ENTEC	Euro NATO Training Engineer Centre
1243	ENVL	Envelope
1244	ENY	Enemy
1245	EOD	Explosive Ordnance Disposal
1246	EOG	ElectroOculoGraphy
1247	EOM	End of Message
1248	EOSAT	Earth Observation Satellite
1249	EOSDIS	Earth Observation Satellite Data and Information System
1250	EP	European Parliament
1251	EP	Extended play
1252	EPCOT	Experimental Prototype Community Of Tomorrow
1253	EPGS	EOS Polar Ground Sites
1254	EPIRB	Emergency Position Indicating Radio Beacon
1255	EPL	English Premier League
1256	EPOS	Electronic Point Of Sale
1257	EPPA	Employee Polygraph Protection Act
1258	EPR	European Pressurised [Nuclear] Reactor
1259	EQ	Emotional Quotient
1260	Er	Erbium
1261	ERCIM	European Research Consortium for Informatics and Mathematics
1262	ERI	Eritrea (ISO 3166 trigram)
1263	ERLAWS	Eastern Ruapehu Lahar Alarm and Warning System
1264	EROS	Earth Resources Observation System
1265	ERP	Engineer Regulating Point
1266	ERR	Eesti Rahvusringhääling
1267	ERS	Earth Resources Survey
1268	ERTS	Earth Resources Technology Satellite (became Landsat)
1269	ERV	Endogenous RetroVirus
1270	ES	Electronic warfare Support,Exasiemens,Spain (ISO 3166 digram; from the country's native name of España)
1271	ESA	Electro-Spark Alloying, Endangered Species Act, European Space Agency
1272	ESC	Embryonic Stem Cell, Electronic Stability Control
1273	ESDP	European Security and Defence Policy
1274	ESE	East South-East
1275	ESH	Western Sahara (ISO 3166 trigram)
1276	ESL	English as a Second Language
1277	ESM	Electronic warfare Support Measures
1278	ESO	European Southern Observatory
1279	ESOL	English for Speakers of Other Languages
1280	ESPN	Entertainment and Sports Programming Network
1281	EST	Eastern Standard Time (UTC−5 hours), Estonia (ISO 3166 trigram)
1282	ESU	Emergency Services Unit
1283	ESV	Engineer Support Vehicle
1284	ET	Ethiopia (ISO 3166 digram)
1285	ETH	Ethiopia (ISO 3166 trigram)
1286	ETI	Extra-Terrestrial Intelligence
1287	ETLA	Extended TLA
1288	ETM	Electronic Technical Manual, Enhanced Thematic Mapper
1289	ETT	Embedded Training Team
1290	EU	European Union
1291	Eu	Europium
1292	EUCOM	(U.S.) European Command
1293	EUUSA	European Union and United States of America
1294	EV	Exavolt
1295	EVA	Earned Value Analysis, Economic value added, Ethylene-Vinyl Acetate, Extra-Vehicular Activity
1296	EVIL	Electronic viewfinder (with) interchangeable lens (a type of digital camera)
1297	EWSD	Elektronisches Wählsystem Digital (German,'Electronic Digital Switching System')
1298	EWTN	Eternal Word Television Network
1299	Exatesla	Extra Terrestrial
1300	EXREP	Expeditious Repair (SM&R code)
1301	EZ	Extraction Zone
1302	f	Femto
1303	fA	Femtoampere
1304	FA	Food Addicts in Recovery Anonymous
1305	FAA	Financial Aid Administrator,Fleet Air Arm,Functional Area Analysis
1306	FAAD	Forward Area Air Defence
1307	FAADEZ	Forward Area Air Defence Engagement Zone
1308	FAAFP	Fellow of the American Academy of Family Physicians
1309	FAAN	Fellow of the American Academy of Neurology
1310	FAAN	Fellow of the American Academy of Nursing
1311	FAAQ	Frequently Asked and Anticipated Questions
1312	FAASV	Field Artillery Ammunition Supply Vehicle
1313	FAB	Feline Advisory Bureau (UK feline charity)
1314	FACA	(US) Federal Advisory Committee Act
1315	FACH	Fuerza Aérea de Chile
1316	FACN	Fellow of the American College of Nutrition
1317	FACP	Fellow of the American College of Physicians
1318	FACTS	Flexible Alternating Current Transmission System
1319	FAM	Foreign Affairs Manual
1320	FAO	Food and Agriculture Organization
1321	FAPA	Fellow of the American Psychological Association
1322	FAPHA	Fellow of the American Public Health Association
1323	FARP	Forward Arming and Refuelling Point / Forward Area Rearm/refuel Point
1324	FASCAM	Family of Scatterable Mines[1]
1325	FASD	Fetal Alcohol Spectrum Disorder
1326	FASEB	Federation of American Societies for Experimental Biology
1327	FAT	Field Artillery Tractor
1328	FAVS	Future Armoured Vehicle System
1329	FAW	Football Association of Wales
1330	FBCS	Fellow of the British Computer Society
1331	FBIDST	Fellow of the British Institute of Dental and Surgical Technologists
1332	FBIS	Foreign Broadcast Information Service
1333	FBM	Board foot
1334	fC	Femtocoulomb
1335	FCC	U.S. Federal Communications Commission
1336	FCE	First Certificate in English
1337	FCF	Financial Free Cash Flow
1338	FCLA	Fraud Claims Law Associate
1339	FCO	UK Foreign and Commonwealth Office
1340	FCW	Florida Championship Wrestling
1341	FD	Falun Dafa
1342	FDA	Food and Drug Administration (U.S.)
1343	FDBK	(I) Feedback
1344	Fe	Iron (Latin Ferrum)
1345	FEAST	Forum for European-Australian Science and Technology Cooperation
1346	FEATS	Festival of European Anglophone Theatrical Societies link title
1347	FEBA	Forward Edge of the Battle Area
1348	FED	Field Emission Display
1349	FEDEP	Federation Development Process (Simulation)
1350	FEF	Frontal Eye Field (neurophysiology)
1351	FEMA	Farm Equipment Manufacturers Association, U.S. Federal Emergency Management Agency,Fire Equipment Manufacturers' Association
1352	FENS	Federation of European Neuroscience Societies
1353	FES	Flywheel Energy Storage
1354	FEST	Frankfurt English Speaking Theatre link title
1355	FET	Field-effect transistor
1356	FEZ	Fighter Engagement Zone
1357	fF	Femtofarad
1358	FF	Final Fantasy
1359	FFB	Frum From Birth (referring to an observant Jew born into a religiously observant family)
1360	FFC	Free For Chat
1361	FFE	Fukuoka Futures Exchange
1362	FFF	Fédération française de football (French for: French Football Federation)
1363	FFG	Guided Missile Frigate (hull classification symbol)
1364	FFOV	Forward Field Of View
1365	FFR	Fédération française de rugby (French for: French Rugby (Union) Federation)
1366	FFS	For Fuck's Sake
1367	FFT	Final Fantasy Tactics
1368	FG	Falun Gong
1369	fg	Femtogram
1370	FG	Fog (METAR Code)
1371	FGOTUS	First Gentleman of the United States
1372	FGR	Flickr Group Roulette
1373	fH	Femtohenry
1374	FHFIF	Foster's Home for Imaginary Friends
1375	FHI	Family Health International, Fuji Heavy Industries,Ltd.
1376	FI	Finland (ISO 3166 digram)
1377	FIAT	Fabbrica Italiana Automobili Torino (Italian for: Italian Car Factory of Turin)
1378	FIB	Fucking Illinois Bastard (Wisconsin slang, variants exist)
1379	FIBUA	Fighting In Built-Up Areas
1380	FIC	Fellowship for Intentional Community
1381	FID	Foreign Internal Defence
1382	FIE	Fly-In Echelon
1383	FIFA	Fédération internationale de football association (French for: International Association Football Federation)
1384	FIFe	Fédération internationale féline (French for: International Feline Federation)
1385	FIFO	First In, First Out
1386	FIFRA	Federal Insecticide, Fungicide, and Rodenticide Act
1387	FIGJAM	Fuck I'm Good, Just Ask Me
1388	FIMPT	Fellow of the Institute of Maxillofacial Prosthetists and Technologists
1389	FIN	Finland (ISO 3166 trigram)
1390	FINA	Fédération internationale de natation (French for: International Swimming Federation)
1391	FIRES	Fever Induced Refractory Epilepsy Syndrome or Febrile Infection-Related Epilepsy Syndrome
1392	FIS	Fédération internationale de ski (French for: International Ski Federation)
1393	FISA	Fédération Internationale des Sociétés d'Aviron (French for: International Federation of Rowing Associations)
1394	FISH	Fluorescence In-Situ Hybridisation
1395	FiST	Fire Support Team
1396	FITS	Flexible Image Transport System
1397	FIU	Florida International University
1398	fJ	Femtojoule
1399	FJ	Fiji (ISO 3166 digram)
1400	FJI	Fiji (ISO 3166 trigram)
1401	FJN	Financial Job Network
1402	FK	Falkland Islands (ISO 3166 digram)
1403	fK	Femtokelvin
1404	FKSM	Fort Knox Supplemental Manual
1405	FKT	Fastest Known Time
1406	fL	Femtolitre
1407	FL	Florida (postal symbol)
1408	fl	floruit (Latin for: living) (genealogy)
1409	FLA	Florida,Front Line Assembly,Future Large Aircraft
1410	FLAB	Four-letter abbreviation
1411	FLAC	Free Legal Advice Centres
1412	FLAC	Free Lossless Audio Codec
1413	FLAK	Flug-Abwehr-Kanone (German for: Anti-Aircraft Guns)
1414	FLB	Forward Logistics Base
1415	FLET	Forward Line of Enemy Troops
1416	FLG	Falun Gong
1417	FLIP	Flight Information Publication
1418	FLIR	Forward Looking InfraRed (sensor)
1419	FLK	Falkland Islands (ISO 3166 trigram)
1420	FLOT	Forward Line of Own Troops
1421	FLOTUS	First Lady of the United States (the wife of the President of the United States)
1422	FLQ	Free Legal Questions
1423	FLQ	Front de libération du Québec (French for: Québec Liberation Front)
1424	FLSA	Fair Labor Standards Act
1425	FLTSAT	Fleet Satellite
1426	FLTSATCOM	Fleet Satellite Communication System
1427	FLUBOS	Fat, Lazy, Useless, Bag Of Shit
1428	FM	Factory Mutual
1429	FM	Federal Magistrate (Australian post-nominal),Federated States of Micronesia (postal symbol; ISO 3166 digram),Field Manual,Flight Manager,Frequency Modulation (electronics)
1430	fm	Femtometre
1431	Fm	Fermium
1432	FMC	Federal Magistrates' Court (an Australian federal court,formerly FMS),Food Machinery Corporation (original name of the company now known as FMC Corporation)
1433	FMCA	Federal Magistrates' Court of Australia (used for citing decisions of the FMC other than family law decisions)
1434	FMCAfam	Federal Magistrates' Court of Australia: family (used for citing family law decisions of the FMC)
1435	FMCG	Fast Moving Consumer Goods
1436	FME	Formal Methods Europe
1437	FMECA	Failure Modes and Effect Criticality Analysis
1438	FMJD	Fédération Mondiale du Jeu de Dames
1439	FMLA	Family Medical Leave Act
1440	FoE	Friends of the Earth
1441	FOGC	Federal Oil and Gas Council
1442	FOH	Front Of House
1443	FOIA	Freedom of Information Act
1444	FOM	Federation Object Model
1445	FONSI	Finding of No Significant Impact
1446	FOO	Forward Observation Officer
1447	FOOP	Friends Of Organ Pipes (Volunteer group)
1448	FoS	Family of Systems
1449	FOSE	Fallout 3 Script Extender
1450	FOSE	Federal Office Systems Expo
1451	FOT	Free on truck
1452	FOTA	Fellow of the Orthodontic Technicians Association
1453	FOTC	Flight of the Conchords
1454	FOUO	For Official Use Only
1455	FPF	Federação Portuguesa de Futebol (Portuguese for: Portuguese Football Federation), Final Protective Fire
1456	FPS	Fire Prevention System
1457	FQ	French Southern and Antarctic Territories (ISO 3166 digram; obsolete 1979)
1458	FR	France (ISO 3166 digram)
1459	Fr	Francium
1460	FRA	Federal Railroad Administration, France (ISO 3166 trigram)
1461	FRAND	Fair,reasonable,and non-discriminatory (concept in standards-setting and intellectual property law)
1462	FRCP	Federal Rules of Civil Procedure,Fellow of the Royal College of Physicians
1463	FRICBM	Full Range ICBM
1464	FRO	Faroe Islands (ISO 3166 trigram)
1465	FRS	Fellow of the Royal Society, U.S. Federal Reserve System
1466	FRSA	Fellow of the Royal Society of Art
1467	FRY	Federal Republic of Yugoslavia
1468	fs	Femtosecond
1469	fS	Femtosiemens
1470	FSA	Fire Support Area, UK Food Standards Agency, Functional Solution Analysis
1471	FSC	Federal Supply Classification, Forest Stewardship Council (ecological pressure group)
1472	FSCL	Fire Support Co-ordination Line
1473	FSE	Fire Support Element
1474	FSF	Free Software Foundation
1475	FSH	Follicle Stimulating Hormone
1476	FSI	Fuel Stratified Injection
1477	FSS	Fire Support Station
1478	FSSP	Families of Structurally Similar Proteins
1479	FSTC	Foreign Science Technology Center (now NGIC)
1480	fT	Femtotesla
1481	FTC	Federal Trade Commission
1482	FTE	Full Time Equivalent
1483	FTL	Faster Than Light
1484	FTS	Flight Termination System used during some rocket launches
1485	FTS	Fuck That Shit
1486	FU	Smoke (METAR Code)
1487	FUBAR	Fucked/Fouled Up Beyond All Recognition/Repair
1488	fV	Femtovolt
1489	fW	Femtowatt
1490	FW	Forward
1491	FWC	Football World Cup
1492	FWF	Fixed Word Format
1493	FWI	French West Indies
1494	FWIW	For What It's Worth
1495	FWS	U.S. Fish and Wildlife Service
1496	FWT	Fresh Water Tank
1497	FXX	Metropolitan France (ISO 3166 trigram; obsolete 1997)
1498	FYA	For Your Agenda
1499	FYDP	Five-Year Defense Plan (U.S.)
1500	FYI	For Your Information
1501	FYROM	Former Yugoslav Republic of Macedonia
1502	FZDZ	Freezing Drizzle (METAR Code)
1503	FZFG	Freezing Fog (METAR Code)
1504	FZRA	Freezing Rain (METAR Code)
1505	g	Gram
1506	G3	Heckler & Koch G3
1507	GAAR	General Anti-Avoidance Rule (tax evasion)
1508	GAB	Gabon (ISO 3166 trigram)
1509	GABA	Gamma-AminoButyric Acid
1510	GAD	Generalized Anxiety Disorder
1511	GAF	Garfield and Friends
1512	GAO	U.S. Government Accountability Office
1513	GAW	Global Atmospheric Watch
1514	GB	United Kingdom of Great Britain and Northern Ireland (ISO 3166 digram) [glamour boy 7-9/10]
1515	GBBC	Great (Global) Backyard Bird Count
1516	GBE	Knight/Dame Grand Cross of the Order of the British Empire
1517	GBR	United Kingdom of Great Britain and Northern Ireland (ISO 3166 trigram)
1518	GCA	Graduate in Claims Administration
1519	GCD	see entry
1520	GCF	Greatest Common Factor
1521	GCI	Ground-controlled interception
1522	GCN	Gamma-ray burst Coordination Network
1523	GCS	Global Coordinate System
1524	GCSE	General Certificate of Secondary Education (UK)
1525	Gd	Gadolinium
1526	GD	Grenada (ISO 3166 digram)
1527	GDL	Game Definition Language
1528	GDR	General Distribution Release (Microsoft Term for a software service release; between Hotfix and Service Pack)
1529	GDR	German Democratic Republic (cf. DDR)
1530	GDW	Game Designers Workshop
1531	Ge	Germanium
1532	GEBCO	General Bathymetric Chart of the Oceans
1533	GEC	Great Engineering Challenge
1534	GED	General Educational Development (high school equivalency credential in the U.S. and Canada)
1535	GEEP	Geophysical Equipment Exploration Platform
1536	GEN	Full General (four stars) in the U.S. Army
1537	GeV	Gigaelectron-volt
1538	GEV	Ground Effect Vehicle
1539	GFCI	Ground Fault Circuit Interruptor (aka GFI)
1540	GFI	Ground Fault Interruptor (aka GFCI)
1541	GFL	German Football League (Germany's Bundesliga for American football; the English-language name is used in German without translation)
1542	GFN	Global Footprint Network
1543	GFY	'good for you' or 'go fuck yourself', depending on the context (Internet chat)
1544	GGK	Good God Karma
1545	GHA	Ghana (ISO 3166 trigram)
1546	GHB	gamma-Hydroxybutyric acid
1547	Gi	Gibi
1548	GIB	Gibraltar (ISO 3166 trigram)
1549	GIG	Global Information Grid
1550	GINO	Godzilla In Name Only
1551	GISS	General Impression of Size and Shape,Goddard Institute for Space Studies
1552	GJ	Gigajoule,Gujarat (Indian state code)
1553	GJD	Geocentric Julian Day
1554	GK	Gigakelvin
1555	GLAAD	Gay and Lesbian Alliance Against Defamation
1556	GLAC	General Ledger Accounting Code
1557	GLAST	Gamma-ray Large Area Space Telescope
1558	GLBA	Gramm-Leach-Bliley Act
1559	GLC	Gas-liquid chromatography
1560	GLP	Guadeloupe (ISO 3166 trigram)
1561	GLV	Gained Life Value
1562	Gm	Gigametre
1563	GM	The Gambia (ISO 3166 digram),GameMaster (role-playing),General Motors,Genetically Modified,Guru Meditation (computing)
1564	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
1565	GMB	The Gambia (ISO 3166 trigram),General,Municipal,Boilermakers (and Allied Trade Union)
1566	GMFSC	Ground Mobile Forces Satellite Communications
1567	GMO	Genetically Modified Organism
1568	GMPCS	Global Mobile Personal Communications by Satellite
1569	GNAS	Grand National Archery Society
1570	GNB	Guinea-Bissau (ISO 3166 trigram)
1571	GNP	Gross National Product
1572	GNQ	Equatorial Guinea (ISO 3166 trigram)
1573	GnRH	Gonadotropin-Releasing Hormone
1574	GOA	General of the Army (United States only)
1575	GOAT	Greatest Of All Time
1576	GOC	General Officer Commanding
1577	GOES	Geostationary Operational Environmental Satellite
1578	GOP	Grand Old Party
1579	gorp	granola,oats,raisins,peanuts (another name for trail mix),probably a backronym
1580	GOSC	General Officer Steering Committee
1581	GOSH	Great Ormond Street Hospital
1582	GOSP	Gas/Oil Separation Plant
1583	GOTS	Government off-the-shelf
1584	GOYADIN	Get Off Your Arse,Do It Now (anti-procrastination mantra)
1585	GP	General Practitioner,General Purpose,Grand Prix,Guadeloupe (ISO 3166 digram)
1586	GPA	Grade Point Average
1587	GPC	Global Path Cache
1588	GPIB	General-Purpose Instrumentation/Interface Bus
1589	GPO	General Post Office
1590	GPPC	Genetics and Public Policy Center
1591	GPR	Ground-Penetrating Radar
1592	GPS	General Problem Solver,Global Positioning System
1593	GPT	General Purpose Technology, Get paid to surf (an online business model)
1594	GQ	Equatorial Guinea (ISO 3166 digram),Gentlemen's Quarterly (the original name of the magazine now known simply as GQ),GR[edit]
1595	GR	Greece (ISO 3166 digram),Hail (METAR Code)
1596	GRAIL	Gravity Recovery and Interior Laboratory
1597	GRAS	Generally recognized as safe (FDA list)
1598	GRB	Gamma-Ray Burst
1599	GRC	Greece (ISO 3166 trigram)
1600	GRD	Grenada (ISO 3166 trigram)
1601	GRE	Graduate Record Examination,Greece (IOC and FIFA trigram,but not ISO 3166)
1602	grep	[search] Globally for Regular Expression,Print [lines]
1603	GRID	Gay-Related Immune Deficiency (original name of AIDS)
1604	GRid	Global Release Identifier,a music industry identifier from the RIAA and IFPI
1605	GriT	Girl raised in Texas (Woman presenting firm southern traits/beliefs)
1606	GRL	Greenland (ISO 3166 trigram)
1607	GRN	Grenada (IOC and FIFA trigram,but not ISO 3166),Goods Received Note
1608	Gs	Gigasecond
1609	GSA	U.S. General Services Administration
1610	GSD	Graphical Situation Display
1611	GSGB	(God send glamour boy 9-10/10)
1612	GSK	GlaxoSmithKline [good sexual karma]
1613	GSN	Game Show Network
1614	GSO	General Services Officer (U.S. Department of State)
1615	GSOH	Good Sense Of Humour
1616	GSP	Georges St-Pierre (Canadian MMA fighter)
1617	GSR	Gun Shot Residue
1618	GSS	Generic Security Services
1619	GSW	Gunshot wound
1620	GTD	Getting Things Done
1621	GTG	Got To Go (Internet chat)
1622	GTGN	Getty Thesaurus of Geographic Names
1623	GTK	Good To Know (Internet chat)
1624	GTM	Guatemala (ISO 3166 trigram)
1625	GU	Guam (postal symbol; ISO 3166 digram)
1626	GUF	French Guiana (ISO 3166 trigram)
1627	GUILT	Gangliated Utrophin Immuno Latency Toxin
1628	GULCR	Grupo de Usuarios de Linux de Costa Rica
1629	GUT	Grand Unification Theory
1630	GV	Gigavolt
1631	GWARS	Ground Warfare System (simulation)
1632	GWAS	Grand Western Archery Society
1633	GWOT	Global War on Terrorism
1634	GXE	Gene-enivronment interaction
1635	GXM	Matrox Graphics eXpansion Module
1636	GY	Guyana (ISO 3166 digram)
1637	GZ	Ground Zero
1638	GZK	Greisen-Zatsepin-Kuzmin cut-off (cosmic ray energies)
1639	h	Hecto
1640	H	Henry
1641	H1	First half of the year
1642	H2	Second half of the year
1643	HA	High Availability
1644	HAARP	High Frequency Active Auroral Research Program
1645	HAART	Highly Active Anti-Retroviral Therapy
1646	HAI	Human Awareness Institute
1647	HAL	Hardware Abstraction Layer
1648	HALO	High Altitude Low Opening (parachute jump)
1649	HAM	Amateur radio operator
1650	HANS	Head And Neck Support (device used in many race cars)
1651	HARM	High-speed Anti-Radiation Missile
1652	HAW	Heavy Antitank Weapon
1653	HAWK	Homing All the Way Killer (air defence system)
1654	HAZ	Heat-Affected Zone
1655	HAZMAT	Hazardous Materials
1656	HBCD	HexaBromoCycloDodecane
1657	HBO	Home Box Office
1658	HBR	Harvard Business Review
1659	HBT	Heterojunction Bipolar Transistor
1660	HBV	Hepatitis B Virus
1661	HCCI	Homogeneous Charge Compression Ignition
1662	HCF	Highest Common Factor
1663	HCSC	Higher Command and Staff Course
1664	HDL	High-Density Lipoprotein
1665	HDM	Human Decision-Making
1666	HDRA	Henry Doubleday Research Association
1667	He	Helium
1668	HE	High Explosive
1669	HEAT	High Explosive Anti-Tank (ammunition)
1670	HEBA	Hellenic Basketball Clubs Association
1671	HEER	High-Explosive Extended Range (ammunition)
1672	HEIC	Honourable East India Company
1673	HEMP	High-Altitude Electromagnetic Pulse
1674	HEOSS	High Earth Orbit Space Surveillance
1675	HEP	High-Explosive Plastic (ammunition)
1676	HEPA	High-Efficiency Particulate Air (filter)
1677	HESV	Heavy Engineering Support Vehicle
1678	HETT	Heavy Equipment Transporting Truck / Heavy Equipment Truck Tractor
1679	HEU	Highly Enriched Uranium
1680	Hf	Hafnium
1681	HF	High Frequency
1682	HFE	Human Fertilisation and Embryology (UK Act)
1683	HFE	The common-emitter current gain in a BJT transistor (also represented by βF). See: BJT
1684	HFEA	Human Fertilisation and Embryology Authority (UK)
1685	Hg	Mercury (Latin Hydrargyrum)
1686	HGC	UK Human Genetics Commission
1687	HGF	Human Growth Factor
1688	HGTV	Home & Garden Television
1689	HI	Hawaii (postal symbol)
1690	HIH	His (or Her) Imperial Highness
1691	HIM	His (or Her) Imperial Majesty
1692	HIMAD	High to Medium Altitude Air Defence (see also H/MAD)
1693	HIMEZ	High Altitude Missile Engagement Zone
1694	HIMYM	How I Met Your Mother
1695	HIPAA	U.S. Health Insurance Portability and Accountability Act
1696	Hipparcos	HIgh Precision Parallax COllecting Satellite
1697	Hird	Hurd of interfaces representing depth (cf. HURD)
1698	HiRISE	High Resolution Imaging Science Experiment
1699	HIT	Health Information Technology
1700	HIV	Human Immunodeficiency Virus
1701	HIWT	Hobart Institute of Welding Technology
1702	HJD	Heliocentric Julian Day
1703	HK	Hong Kong (ISO 3166 digram)
1704	HKG	Hong Kong (ISO 3166 trigram)
1705	HKS	HyperKinetic Syndrome
1706	hL	Hectolitre
1707	HL	Holding Line
1708	HLL	High-Level Language
1709	HLN	Headline News
1710	HLOS	High Level Output Specification
1711	HM	Heard Island and McDonald Islands (ISO 3166 digram)
1712	HMCE	Her/His Majesty's Customs and Excise (former UK government department; succeeded by HM Revenue and Customs)
1713	HMD	Heard and McDonald Islands (ISO 3166 trigram)
1714	HMF	HydroxyMethyl Furfural
1715	HMO	Health maintenance organization
1716	HMP	Her Majesty's Prison
1717	HMRC	Her/His Majesty's Revenue and Customs
1718	HMSO	Her Majesty's Stationery Office
1719	HMV	His Master's Voice
1720	HN	Honduras (ISO 3166 digram)
1721	HND	Honduras (ISO 3166 trigram)
1722	Ho	Holmium
1723	HOLLAND	Hope Our Love Lasts And Never Dies
1724	HOSTAC	Helicopter Operations from Ships Other Than Aircraft Carriers
1725	HOT	Highly Optimised Tolerance
1726	HOTAS	Hands on throttle-and-stick
1727	HOV	High Occupancy Vehicle
1728	hp	horse power
1729	HPA	UK Health Protection Agency
1730	HPCL	Hindustan Petroleum Corporation Limited
1731	HPLC	High Performance Liquid Chromatography
1732	HPT	High[er] Payoff Target
1733	HPV	Human Papilloma Virus
1734	HQ	HeadQuarters
1735	HRBL	High-level Representation of Behavior Language (original name of the Herbal language)
1736	HRD	Human Resource Development
1737	HRF	High iness Forces
1738	HRH	His (or Her) Royal Highness
1739	HRM	His (or Her) Royal Majesty
1740	HRM	Human Resource Management
1741	HRT	Hormone Replacement Therapy
1742	Hs	Hassium
1743	HSBC	The Hong Kong and Shanghai Banking Corporation
1744	HSC	Higher School Certificate
1745	HSM	High School Musical
1746	HSMAD	Human Science/Modeling and Analysis Data
1747	HSN	Home Shopping Network
1748	HSPH	Harvard School of Public Health
1749	HSSI	High-Speed Serial Interface
1750	HST	see entry
1751	HTA	HyperText Application
1752	HTFU	Harden The Fuck Up
1753	HTH	Hope That Helps
1754	HTI	Haiti (ISO 3166 trigram)
1755	HTR	Heated Towel Rail
1756	HTS	High-Temperature Superconducting wire
1757	HTTP	HyperText Transfer Protocol
1758	HU	Hungary (ISO 3166 digram)
1759	HUHA	Head up his/her ass (Marine salute; probably a backcronym)
1760	HUN	Hungary (ISO 3166 trigram)
1761	HURD	Hird of Unix-Replacing Daemons (cf. Hird)
1762	HV	Upper Volta (ISO 3166 digram; obsolete 1984)
1763	HVAP	High Velocity Armour Piercing (ammunition)
1764	HVHF	High velocity human factors
1765	HVM	High Velocity Missile
1766	HVO	Upper Volta (ISO 3166 trigram; obsolete 1984)
1767	HWM	Hardware morphing (computer graphics rendering)
1768	HXB	The glycoprotein Tenascian C
1769	HZ	Haze (METAR Code)
1770	Hz	Hertz
1771	IA	Iowa (postal symbol)
1772	IAAL	I Am A Lawyer
1773	IAB	International Association for Biologicals
1774	IAD	Ion Assisted Deposition
1775	IADS	Integrated Air Defence System
1776	IAEA	International Atomic Energy Agency
1777	IAF	{i} Industrial Areas Foundation
1778	IAFG	Information Assurance Focus Group
1779	IANA	Internet Assigned Numbers Authority
1780	IANAL	I Am Not A Lawyer
1781	IAS	Image Assessment System
1782	IASIP	It's Always Sunny in Philadelphia
1783	IATA	International Air Transport Association
1784	IATF	International Automotive Task Force
1785	IATSE	International Alliance of Theatrical Stage Employees
1786	IAUC	International Astronomical Union Circular
1787	IAW	In Accordance With
1788	IB	International Baccalaureate
1789	IBA	Important Bird Area
1790	IBD	Inflammatory Bowel Disease
1791	IBDM	Information Based Decision Making
1792	IBM	International Business Machines
1793	IBRD	International Bank for Reconstruction and Development (part of the World Bank)
1794	IBS	Irritable Bowel Syndrome
1795	IC	Ice Crystals (METAR Code),Integrated Circuit,[inner circle]
1796	ICANN	Internet Corporation for Assigned Names and Numbers
1797	ICAO	International Civil Aviation Organization
1798	ICBM	Intercontinental Ballistic Missile
1799	ICBN	International Code of Botanical Nomenclature
1800	ICE	In case of emergency, Immigration and Customs Enforcement
1801	ICES	International Council for the Exploration of the Sea
1802	ICF	Intelligent Community Forum
1803	ICMP	Internet Control Message Protocol
1804	ICNAF	International Commission for the Northwest Atlantic Fisheries (became NAFO in 1978)
1805	ICO	Intermediate Circular Orbit
1806	ICPE	International Conference on Pharmacoepidemiology,the annual conference of the International Society for Pharmacoepidemiology
1807	ICRAF	International Centre for Research in Agroforestry (a.k.a. World Agroforestry Centre since 2002)
1808	ICRISAT	International Crops Research Institute for the Semi-Arid Tropics
1809	ICRL	Individual Component Repair List
1810	ICRS	International Celestial Reference System
1811	ICSI	Intracytoplasmic Sperm Injection
1812	ICT	Information and communication technologies
1813	ICTH	Island Closest to Heaven/Hell Final Fantasy VIII
1814	ICV	Infantry Carrier Vehicle
1815	ICYMI	In Case You Missed It
1816	ID	Idaho (postal symbol),Identity,Indonesia (ISO 3166 digram),Infantry Division,Intelligent Design,ID10T Error,Idiot User Error (IT help desk inside joke)
1817	IDC	International Data Corporation
1818	IDDI	I don't do initialisms (see irony)
1819	IDGAF	I don't give a fuck
1820	IDK	I don't know
1821	IDL	Interface Definition Language
1822	IDN	Indonesia (ISO 3166 trigram)
1823	IEA	International Energy Agency
1824	IEC	International Electrotechnical Commission
1825	IED	Improvised Explosive Device
1826	IELTS	International English Language Testing System
1827	IER	Information Exchange Requirement
1828	IET	Initial Entry Training
1829	IET	Institution of Engineering and Technology
1830	IETF	Internet Engineering Task Force
1831	IEW	Intelligence and Electronic Warfare
1832	IFAB	International Football Association Board
1833	IFAH	International Federation for Animal Health
1834	IFAP	International Federation of Agricultural Producers
1835	IFO	Identified Flying Object (see also UFO)
1836	IFOV	Instantaneous Field of View
1837	IFPI	International Federation of Phonographic Industries
1838	IFRB	International Frequency Registration Board
1839	IFV	Infantry Fighting Vehicle
1840	IG	Inspector General
1841	IGNOU	Indira Gandhi National Open University
1842	IGS	International Ground Station
1843	IHH	Idiopathic Hypogonadotropic Hypogonadism
1844	IHO	International Hydrographic Organization
1845	IHR	Institute for Historical Review
1846	IHSI	Institutum Historicum Societatis Iesu (Jesuit Historical Institute)
1847	II	Two (in Roman numerals)
1848	IICA	Inter-American Institute for Cooperation on Agriculture
1849	IIE	Innovative Interstellar Explorer
1850	III	Three (in Roman numerals)
1851	IIRC	If I Recall/Remember Correctly
1852	IISS	International Institute for Strategic Studies
1853	IJN	Imperial Japanese Navy (World War II)
1854	IJWP	Interim Joint Warfare Publication
1855	ILDS	Improved Landmine Detection System
1856	ILO	International Labour Organization
1857	ILRI	International Livestock Research Institute
1858	ILY	I Love You [pronounced ILL-LEE]
1859	IM	Instant Message (internet speech)
1860	IMBD	International Migratory Bird Day
1861	IMDb	Internet Movie Database
1862	IME	In My Experience
1863	IMHO	In My Humble/Honest Opinion
1864	IML	International Mister Leather
1865	IMNSHO	In My Not So Humble Opinion
1866	IMPAC	International Merchant Purchase Authorization Card
1867	IMPACT	International Medical Products Anti-Counterfeiting Taskforce
1868	IMPATT	IMPact Avalanche Transit Time diode
1869	IMPT	Institute of Maxillofacial Prosthetists and Technologists
1870	IMRL	Individual Material iness List
1871	IMRO-Internal Macedonian Revolutionary Organization	Irish Music Rights Organisation
1872	IMsL	International Ms. Leather
1873	IMT	Integrated Management Tool
1874	IMU	International Mathematical Union
1875	IN	India (ISO 3166 digram),Indiana (postal symbol),Infantry
1876	In	Indium
1877	INA	Immigration and Nationality Act
1878	INAS	International Near-Earth Asteroid Survey
1879	INCITS	InterNational Committee for Information Technology Standards
1880	IND	India (ISO 3166 trigram)
1881	INDIGO	(U.S.) INtelligence DIvision Gaming Operation
1882	inet	the Internet
1883	INFORMS	(U.S.) Institute for Operations Research and the Management Sciences
1884	INFOSEC	Information Security
1885	INLA	Irish National Liberation Army
1886	INMARSAT	International Maritime Satellite organization
1887	INRIA	Institut national de recherche en informatique et en automatique
1888	INS	Immigration and Naturalization Service
1889	InSAR	Interferometric synthetic aperture radar
1890	INST	Information Standards and Technology
1891	INTERFET	International Force for East Timor
1892	INTSUM	Intelligence Summary
1893	IO	British Indian Ocean Territory (ISO 3166 digram)
1894	IOT	British Indian Ocean Territory (ISO 3166 trigram)
1895	IPB	Intelligence Preparation of the Battlefield
1896	IPL	Inferior Parietal Lobule
1897	IPO	Initial Public Offering
1898	IPT	Integrated Product/Project Team
1899	IPTS	Institute for Prospective Technological Studies
1900	IPTV	Internet Protocol TeleVision
1901	IPW	Interrogation of Prisoners of War
1902	Ir	Iridium
1903	IRAD	Internal Research and Development
1904	IRAN	(I) Inspect and Repair As Necessary
1905	IRAS	Infrared Astronomical Satellite
1906	IRB	International Rugby Board
1907	IRBM	Intermediate Range Ballistic Missile
1908	IREA	Intermountain Rural Electric Association
1909	IRINN	Islamic Republic of Iran News Network
1910	IRL	Ireland (ISO 3166 trigram),Industrial Research Limited,Indy Racing League,In real life
1911	IRN	Iran (ISO 3166 trigram)
1912	IRO	International Refugee Organisation
1913	IRQ	Iraq (ISO 3166 trigram)
1914	IRS	U.S. Internal Revenue Service
1915	IRST	Infra-red Search and Track
1916	IS	Islamic State, or: Iceland (ISO 3166 digram)
1917	ISAAA	International Service for the Acquisition of Agri-biotech Applications
1918	ISAR	Inverse SAR (Synthetic Aperture Radar)
1919	ISB	Intermediate Staging Base
1920	ISBN	International Standard Book Number (ISO 2108)
1921	ISCCP	International Satellite Cloud Climatology Project
1922	ISCII	Indian Standard Code for Information Interchange
1923	ISDN	Integrated Services Digital Network
1924	ISEF	Intel International Science and Engineering Fair
1925	ISEN	Internet Search Environment Number
1926	ISF	Internal Security Force
1927	ISIL	Islamic State of Iraq and the Levant
1928	ISIS	Islamic State of Iraq and Syria, or: Institute for Science and International Security
1929	ISL	Iceland (ISO 3166 trigram)
1930	ISLN	International Standard Lawyer Number (used initially by LexisNexis Martindale-Hubbell)
1931	ISMB	International Society of Matrix Biologists
1932	ISMC	Intelligent Sounding Meaningless Conversation
1933	ISOGP	Indian Society of Orthodontics for General Practitioners [2]
1934	ISPE	International Society for Pharmacoepidemiology
1935	ISR	Intelligence,Surveillance and Reconnaissance, or: Israel (ISO 3166 trigram)
1936	ISRO	Indian Space Research Organisation
1937	ISSCR	International Society for Stem Cell Research
1938	ISSN	International standard serial number (ISO 3297)
1939	ISTC	Institute of Scientific and Technical Communications (UK)
1940	ISTS	Intel Science Talent Search
1941	ITA	Italy (ISO 3166 trigram)
1942	ITAG	Inertial Terrain-Aided Guidance
1943	ITALY	I'll Truly Always Love You
1944	ITAS	Improved Target Acquisition Sight
1945	ITC	InferoTemporal Cortex (neurophysiology)
1946	ITCZ	Intertropical Convergence Zone
1947	ITEC	Information Technology Exposition & Conference
1948	ITEMS	Interactive Tactical Environment Management System
1949	ITER	International Thermonuclear Experimental Reactor
1950	ITF	International Tennis Federation
1951	ITK	In The Know
1952	ITN	Independent Television News (British)
1953	ITT	International Telephone and Telegraph (U.S.)
1954	ITTO	International Tropical Timber Organization
1955	IUCN	International Union for the Conservation of Nature and Natural Resources (World Conservation Union)
1956	IV	Four (in Roman numerals),IntraVenous (as in intravenous drip or intravenous therapy)
1957	Iveco	Industrial Vehicles Corporation
1958	IVF	In Vitro Fertilisation
1959	IVI	Interchangeable Virtual Instrument
1960	IVIS	Inter-Vehicle Information System
1961	IVL	Inter-Visibility Line
1962	IVM	In Vitro [Oocyte] Maturation
1963	IVO	In Vicinity Of
1964	IW	Information Warfare
1965	IWARS	Infantry Warrior Simulation
1966	IWC	International Whaling Commission
1967	IWW	Industrial Workers of the World
1968	IX	Nine (in Roman numerals)
1969	IXT	IntraText digital library; IntraText lexical hypertext
1970	J	Joule
1971	J1	Joint [Manpower &] Personnel Directorate
1972	J2	Joint Intelligence Directorate
1973	J3	Joint Operations Directorate
1974	J4	Joint Logistics Directorate
1975	J5	Joint Strategic Plans & Policy Directorate
1976	J7	Joint Operational Plans & Interoperability Directorate
1977	JAFT	Just A Field Test
1978	JAL	Japan Airlines
1979	JALLC	Joint Analysis and Lessons Learned Centre (NATO)
1980	JAM	Jamaica (ISO 3166 trigram)
1981	JAMA	Journal of the American Medical Association
1982	JANET	Joint Academic Network
1983	JATO	Jet-Assisted Take-Off
1984	JB	Jail Bait
1985	JB	Junior Branch
1986	JBFSA	Joint Blue Force Situational Awareness
1987	JCDB	Joint Common Data Base
1988	JCDS	Joint Chiefs of the Defence Staff
1989	JCIDS	Joint Capabilities Integration and Development System
1990	JCL	Job Control Language
1991	JCP	Java Community Process
1992	JCS	Joint Chiefs of Staff
1993	JCW	Juggalo Championship Wrestling
1994	JDBC	Java Data Base Connectivity
1995	JDEM	Joint Dark Energy Mission
1996	JDL	Jewish Defense League
1997	JEFX	Joint Expeditionary Force eXperiment
1998	JET	Joint European Torus
1999	JEZ	Joint Engagement Zone
2000	JFACC	Joint Force Air Component Commander
2001	JFACTSU	U.S. Joint Forward Air Control Training and Standards Unit
2002	JFC	Joint Force Commander
2003	JFK	John Fitzgerald Kennedy or the airport named after him.
2004	JFLCC	Joint Force Land Component Commander
2005	JFMCC	Joint Force Maritime Component Commander
2006	JFO	Journal of Field Ornithology
2007	JFSOCC	Joint Force Special Operations Component Commander
2008	JFTX	Joint Field Training Exercise
2009	JH	Japan Highway Public Corporation
2010	JH	Jharkhand (Indian state code)
2011	JI	Joint Implementation
2012	JIB	Joint Information Bureau
2013	JIC	Joint Intelligence Centre
2014	JINI	Java Intelligent Network Infrastructure
2015	JITC	Joint Interoperability Test Command
2016	JIVE	Joint Institute for VLBI (Very Long Baseline Interferometry) in Europe
2017	JJAP	Japanese Journal of Applied Physics
2018	JL	Japan Airlines (IATA airline designator)
2019	JLA	Justice League of America
2020	JM	Jamaica (ISO 3166 digram)
2021	JMS	Java Message Service
2022	JO	Jordan (ISO 3166 digram)
2023	JOA	Joint Operations Area
2024	JOPES	Joint Operations Planning and Execution System
2025	JOR	Jordan (ISO 3166 trigram)
2026	JOTS	Joint Operations Tactical System
2027	JPL	Jet Propulsion Laboratory
2028	JPN	Japan (ISO 3166 trigram)
2029	JPOW	Joint Project Optic Windmill
2030	JRDF	Joint Rapid Deployment Forces
2031	JRE	Java Runtime Environment
2032	JREF	James Randi Educational Foundation
2033	JROC	Joint Requirements Oversight Council
2034	JROCM	JROC Memorandum
2035	JRRF	Joint Rapid Reaction Force
2036	JRSAI	Journal of the Royal Society of Antiquaries of Ireland
2037	JSAP	Japan Society of Applied Physics
2038	JSCSC	Joint Services Command and Staff College
2039	JSEAD	Joint Suppression of Enemy Air Defence (see SEAD)
2040	JSF	Joint Strike Fighter
2041	JSIMS	Joint Simulation System
2042	JSOA	Joint Special Operations Area
2043	JSOTF	Joint Special Operations Task Force
2044	JSP	JavaServer Page
2045	JSP	Joint Services Publication
2046	JSR	Java Specification Request
2047	JSS	Joint Support Ship Project
2048	JTC	Joint Training Confederation
2049	JTF	Joint Task Force
2050	JTFEX	Joint Task Force Exercise
2051	JTLS	Joint Theater Level Simulation
2052	JTMD	Joint Theatre Missile Defence
2053	JTN	Johnston Atoll (ISO 3166 trigram; obsolete 1986)
2054	JUGFET	JUnction Gate Field-Effect Transistor
2055	JUICE	JUpiter ICy Moon Explorer
2056	JUO	Joint Urban Operations
2057	JV	Joint Venture,Junior Varsity
2058	JW	Jehovah's Witnesses
2059	JWARS	Joint Warfare System (simulation)
2060	JWP	Joint Warfare Publication
2061	JY	Japanese Yen
2062	JZ	Joint Zone
2063	K	Kelvin,Potassium (Latin Kalium),Tanker (aircraft designation code)
2064	k	Kilo-
2065	K	picokelvin
2066	K9	Canine Police Unit
2067	Ka	Kamov Design Bureau
2068	kA	Kiloampere
2069	KA	Knowledge Acquisition,Karnataka (Indian state code)
2070	KAF	Kandahar Air Field
2071	KANUKOKA	Kalaallit Nunaanni Kommunit Kattuffiannit (Kalaallisut, Greenlandic Communities Association
2072	KARNAC	Knowledge Aided Retrieval in Activity Context
2073	KARR	Knight Automated Roving Robot (Knight Rider character)
2074	KATUSA	Korean Augmentation To United States Army
2075	KAZ	Kazakhstan (ISO 3166 trigram)
2076	KBE	Knight Commander of the Order of the British Empire
2077	KBO	Kuiper Belt Object
2078	KBVB	Koninklijke Belgische Voetbalbond (Dutch for Royal Belgian Football Association)
2079	kC	Kilocoulomb
2080	KCK	Kansas City,Kansas,Koma Civakên Kurdistan (Kurdish, Union of Communities in Kurdistan)
2081	KCL	King's College London
2082	KCMO	Kansas City,Missouri (pronounced: K-C-Moe)
2083	KCS	Kansas City Southern Railway (AAR reporting mark)
2084	KD	Kawasaki Disease,Kraft Dinner
2085	KE	Kenya (ISO 3166 digram),Kinetic Energy,Knowledge Engineering
2086	KEDO	Korean Peninsula Energy Development Organization
2087	KEN	Kenya (ISO 3166 trigram)
2088	KERA	Kentucky Education Reform Act (of 1990)
2089	kerma	Kinetic Energy Released in MAterial / in MAtter / per unit MAss
2090	KESR	Kent and East Sussex Railway.
2091	KET	Kentucky Educational Television,Key English Test
2092	kF	Kilofarad
2093	KFC	Kentucky Fried Chicken
2094	KFOR	UN Kosovo Force
2095	KFUPM	King Fahd University of Petroleum & Minerals
2096	KG	Kyrgyzstan (ISO 3166 digram)
2097	KGO	Knight of the Guelphic Order of Hanover
2098	KGZ	Kyrgyzstan (ISO 3166 trigram)
2099	KH	Cambodia (ISO 3166 digram)
2100	kH	Kilohenry
2101	KHL	Kontinental Hockey League
2102	KHM	Cambodia (ISO 3166 trigram)
2103	KHz	Kilohertz
2104	Ki	Kibi
2105	KI	Kiribati (ISO 3166 digram)
2106	KIA	Killed In Action
2107	KIDS	Knowledge-based Integrated Design System
2108	KIR	Kiribati (ISO 3166 trigram)
2109	KISS	Keep It Simple,Stupid / Keep It Short and Simple,Korean Intelligence Support System
2110	KIT	Keep In Touch
2111	KITECH	Korean Institute of Industrial Technology
2112	KITT	Knight Industries Two Thousand, Knight Industries Three Thousand
2113	kJ	Kilojoule
2114	kK	Kilokelvin
2115	KKK	Ku Klux Klan
2116	kL	Kilolitre
2117	KLENOT	KLEť Observatory Near Earth and Other unusual objects observations Team and Telescope
2118	KLOC	Kilo Lines Of Code
2119	KM	Comoros,Knowledge Management
2120	kN	Kilonewton
2121	KNA	Saint Kitts and Nevis (ISO 3166 trigram)
2122	KNVB	Koninklijke Nederlandse Voetbal Bond (Dutch for Royal Dutch Football Association)
2123	KO	Knocked Out
2124	KOR	Republic of Korea (ISO 3166 trigram)
2125	KP	Kim Possible
2126	KPMG	Klynveld,Peat,Marwick,Goerdeler
2127	KPNO	Kitt Peak National Observatory
2128	KQ	Kenya Airways (IATA airline designator)
2129	KR	Kiribati (FIPS 10-4 country code), Republic of Korea (ISO 3166 digram)
2130	Kr	Krypton
2131	KS	Kansas (postal symbol)
2132	kS	Kilosiemens
2133	KSC	Kennedy Space Center
2134	KSI	Killed or Seriously Injured
2135	KSU	Kansas State University
2136	KT	Knight of the Order of the Thistle, Knights Templar
2137	kT	Kilotesla
2138	KTS	Knight of the Tower and Sword (of Portugal)
2139	KUW	Kuwait (UNDP country code,IOC and FIFA trigram,but not ISO 3166)
2140	kV	Kilovolt
2141	KV	Kosovo
2142	kW	Kilowatt
2143	KW	Kuwait (ISO 3166 digram)
2144	KWB	Kids' WB!
2145	KWT	Kuwait (ISO 3166 trigram)
2146	KX	Cayman Airways (IATA airline designator)
2147	KY	Cayman Islands (ISO 3166 digram), Kentucky (postal symbol)
2148	KZ	Kazakhstan (ISO 3166 digram)
2149	KZN	KwaZulu-Natal
2150	La	Lanthanum
2151	LA	Laos (ISO 3166 digram), Louisiana (postal symbol), Los Angeles
2152	LAAS	Local Area Augmentation System, Los Angeles Astronomical Society
2153	LAB	Logistics Assault Base
2154	LabVIEW	Laboratory Virtual Instrumentation Engineering Workbench
2155	LACMA	Los Angeles County Museum of Art
2156	LAD	Laser Aiming Device
2157	LADW	Local Air Defence Warning
2158	LAESI	Local Authority & Emergency Service Information
2159	LANL	Los Alamos National Laboratory
2160	LAO	Laos (ISO 3166 trigram)
2161	LAR	Light Armoured Reconnaissance, Logistics Assistance Representative
2162	LARC	Livermore Advanced Research Computer (cf. LLNL)
2163	LARP	Live-Action Role-Playing
2164	Laser	Light Amplification by Stimulated Emission of Radiation (cf. Maser)
2165	LAT	Lowest Astronomical Tide (nautical charts),Licensed Athletic Trainer (used in many of the United States; see www.oata.org)
2166	LATA	Local Access Transport Area
2167	LATCH	Lower Anchors and Tethers for Children (U.S. standard for attachment points for child safety seats in passenger cars)
2168	LAV	Land Assault Vehicle, Light Armoured Vehicle, Lymphadenopathy-Associated Virus
2169	LAW	Light Antitank Weapon
2170	LAX	Los Angeles International Airport, The Latin American Xchange (professional wrestling)
2171	LB	Lebanon (ISO 3166 digram)
2172	LBH	Light Battlefield Helicopter, Lyman-Birge-Hopfield bands
2173	LBJ	Lady Bird Johnson,LeBron James,Light Bulb Joke,Little Beagle Johnson (the dog owned by Lyndon and Lady Bird Johnson),Lyndon Baines Johnson
2174	LBN	Lebanon (ISO 3166 trigram)
2175	LBNL	Lawrence Berkeley National Laboratory
2176	LBR	Liberia (ISO 3166 trigram)
2177	LBS	Location-Based Services
2178	LBT	Large Binocular Telescope
2179	LBW	Leg Before Wicket
2180	LBY	Libya (ISO 3166 trigram)
2181	LCA	Saint Lucia (ISO 3166 trigram)
2182	LCC	Land Component Commander
2183	LCCP	Light Contingency Communications Package
2184	LCD	Liquid Crystal Display
2185	LCM	Least/Lowest Common Multiple
2186	LCS	League of Legends Championship Series
2187	LDA	Lateral Drift Apparatus (paratroops)
2188	LDC	Lesser Developing/Developed Country
2189	LDL	Low-Density Lipoprotein
2190	LDV	Local Defence Volunteers (British Home Guard)
2191	LDW	Lane Departure Warning (ADAS)
2192	LEC	Local Exchange Carrier
2193	LED	Light-Emitting Diode
2194	LEGAD	Legal Advice
2195	Legs	level emotion gad speed
2196	LEMOSS	Long-Endurance MObile Submarine Simulator
2197	LEN	Large Extension Node
2198	LEP	Large Electron-Positron collider
2199	LER	Loss-Exchange Ratio
2200	LEU	Low-Enriched Uranium
2201	LF	Low Frequency
2202	LFO	Low Frequency Oscillation / Oscillator
2203	LFTR	Liquid fluoride thorium reactor
2204	LGB	Lesbian,Gay,Bisexual
2205	LGBT	Lesbian,Gay,Bisexual,Transgender
2206	LGBTQ	Lesbian,Gay,Bisexual,Transgender,Queer
2207	LGLO	Love God,Love Others
2208	LGM	Little Green Men
2209	LGS	Landsat Ground Station
2210	LH	Luteinising Hormone
2211	LHC	Large Hadron Collider
2212	LHS	Left Hand Side
2213	LI	Fifty-one (in Roman numerals),Liechtenstein (ISO 3166 digram)
2214	Li	Lithium
2215	LIBOR	London Interbank Offered Rate
2216	LIBS	Laser Induced Breakdown Spectroscopy
2217	LIE	Liechtenstein (ISO 3166 trigram)
2218	LIGO	Laser Interferometer Gravitational-Wave Observatory
2219	LINEAR	Lincoln Near-Earth Asteroid Research
2220	LISA	Laser Interferometer Space Antenna
2221	LIVE	Liquid Inertial Vibration Eliminator
2222	LJJ	Lord Justices of Appeal
2223	LK	Sri Lanka (ISO 3166 digram)
2224	LKA	Sri Lanka (ISO 3166 trigram)
2225	LKR4	Linkwitz-Riley 4th order (audio crossover type)
2226	LLAD	Low Level Air Defence
2227	LLB	Legum Baccalaureus (Latin: Bachelor of Laws)
2228	LLC	Limited Liability Company
2229	LLLTV	Low-Light Level Television
2230	LLNL	Lawrence Livermore National Laboratory
2231	LLP	Limited Liability Partnership
2232	LLTR	Low-Level Transit Route
2233	LMAO	Laughing My Ass Off (Internet shorthand)
2234	LMB	Lick My Balls
2235	LMFAO	Laughing My F**king Ass Off (Internet shorthand,electro-hop duo)
2236	LMN	Lifetime Movie Network
2237	LMS	Like My Status (Internet shorthand)
2238	LMV	() Light Motor Vehicle
2239	LNER	London and North Eastern Railway
2240	LNG	Liquefied Natural Gas
2241	LNO	Liaison Officer
2242	LNR	Ligue Nationale de Rugby (French for: 'National Rugby League')
2243	LOA	Limit Of Advance
2244	LOC	Level of Operational Capability, Limited Operational Capability
2245	LOD	Limit of Detection,see Detection limit
2246	LoD	Lines of Development (UK)
2247	LOE	Level of Effort
2248	LOFAR	Low Frequency Analysis and Recording
2249	LOGPAC	Logistics Package
2250	LOL	Laughing Out Loud (Internet shorthand)
2251	LOMEZ	Low Altitude Missile Engagement Zone
2252	LONEOS	Lowell Observatory Near-Earth-Object Search
2253	LOOGY	Lefty One-Out GuY,a sometimes pejorative nickname for the left-handed specialist in baseball
2254	LORTID	LOng Range Target IDentification
2255	LOS	Line Of Sight
2256	LOSAT	Line-Of-Sight Anti-Tank (missile)
2257	LOTA	Licentiate of the Orthodontic Technicians Association
2258	LOTIS	Livermore Optical Transient Imaging System
2259	LOTS	Logistics Over-The-Shore
2260	LP	Linkin Park,Linkup Point,Listening Post,Long Playing record,Louisiana Pacific (cf. LP Field)
2261	LPC	Linear Predictive Coding
2262	LPD	Landing Platform Dock (Navy hull classification),Low Probability of Detection
2263	LPG	Liquefied Petroleum Gas (cf. LNG)
2264	LPI	Low Probability of Intercept
2265	LPS	Landsat Processing System,LipoPolySaccharide
2266	Lr	Lawrencium
2267	LR	Liberia (ISO 3166 digram)
2268	LRC	Logistics iness Center
2269	LRGW	Long-Range Guided Weapon
2270	LRICBM	Limited Range ICBM
2271	LRIP	Low Rate Initial Production
2272	LRP	Logistics Release Point
2273	LRPE	Long-Range Planning Element
2274	LRS	Long Range Surveillance
2275	LRU	Line-Replaceable Unit
2276	LSAT	Law School Admission Test (often pronounced as 'el-SAT')
2277	LSI	Large-Scale Integration
2278	LSIF	Labour Sponsored Investment Fund
2279	LSND	Liquid Scintillator Neutrino Detector
2280	LSO	Lesotho (ISO 3166 trigram)
2281	LSST	Large Synoptic Survey Telescope
2282	LST	Landing Ship,Tank (World War II; also known,not entirely affectionately,as 'Large Slow Target')
2283	LSVW	Light Support Vehicle,Wheeled
2284	LT	Lithuania (ISO 3166 digram)
2285	Lt	Lieutenant
2286	LtC	Lieutenant-Colonel (U.S.)
2287	LTC	Long-Term Costing
2288	Ltd	Limited
2289	LTDP	Long-Term Defence Plan
2290	LTG	Lieutenant General,Lightning (METAR Code)
2291	LTI	Linear Time-Invariant
2292	LTM	Acronym for Laughing To Myself
2293	LTP	Long-Term Potentiation
2294	LTU	Lithuania (ISO 3166 trigram)
2295	LU	Acronym Love You
2296	LU	Loonatics Unleashed
2297	Lu	Lutetium
2298	LUCA	Last Universal Common Ancestor
2299	LUG	Linux User Group
2300	LULU	Locally Unwanted Land Use (urbanism)
2301	LUT	Limited User Test (ing),Local User Terminal
2302	LUVW	Light Utility Vehicle,Wheeled
2303	LUX	Luxembourg (ISO 3166 trigram)
2304	LV	Las Vegas,Latvia (ISO 3166 digram),Launch Vehicle,Leading Vehicle,Leave,Left Ventricle,Level Valve,Linking Verb,Liverpool Victoria
2305	LVA	Latvia (ISO 3166 trigram)
2306	LVAD	Left Ventricular Assist Device,Low-Velocity Airdrop
2307	LVEF	Left Ventricular Ejection Fraction
2308	LW	Land Warrior,Low Water (nautical charts)
2309	Lw	Lawrencium (obsolete 1963)
2310	LWR	Laser warning receiver
2311	LWRC	Land Warfare Resources Corporation
2312	LWS	Land Warrior System
2313	LX	Electrics (theatrical term)
2314	LX	Luxembourg (amateur radio ITU prefix),Swiss International Air Lines (IATA code)
2315	LY	Libya (ISO 3166 digram),Lithuania (amateur radio ITU prefix)
2316	LYAO	Laugh Your Ass Off
2317	LYLAS	Love You Like A Sister
2318	LZ	Bulgaria (amateur radio ITU prefix),Landing Zone
2319	M	Mega-,One thousand (in Roman numerals)
2320	m	Metre,Milli
2321	MA	Marijuana Anonymous,Master of Arts,Massachusetts (postal symbol),Megaampere,Morocco (ISO 3166 digram)
2322	Ma	Megaannum
2323	mA	Milliampere
2324	MAA	Mathematical Association of America
2325	MAAC	Metro Atlantic Athletic Conference
2326	MACE	Multi-Agent Computing Environment
2327	MACHO	MAssive Compact Halo Object
2328	MADD	Mothers Against Drunk Driving,MyoAdenylate Deaminase Deficiency,Multiply-Add
2329	MAF	Maintenance Action Form
2330	MAGA	Make America Great Again
2331	MAGIC	Major Atmospheric Gamma-ray Imaging Cherenkov (telescope)
2332	MAGNETAR	Metaprogrammable AGent NETwork ARchitecture
2333	MAGTF	Marine Air-Ground Task Force
2334	Mahasz	Magyar Hanglemezkiadók Szövetsége (Hungarian for: 'Association of Hungarian Record Companies')
2335	MALD	Miniature Air-Launched Decoy
2336	MANPADS	MAN-Portable Air Defence System
2337	MANPRINT	MANpower and PeRsonnel INTegration
2338	MAO	Molėtų astronomijos observatorija (Moletai Astronomical Observatory),MonoAmine Oxidase
2339	MAOI	Monoamine oxidase inhibitor
2340	MAPS	Monitoring Avian Productivity and Survivorship
2341	MAR	Morocco (ISO 3166 trigram)
2342	MarBEF	Marine Biodiversity and Ecosystem Functioning
2343	MARCENT	United States Marine Forces Central Command
2344	MARFORCC	Marine Force Component Commander
2345	MASAS	Monte Agliale Supernovae and Asteroid Survey
2346	Maser	Microwave Amplification by Stimulated Emission of Radiation
2347	MASH	Mobile Army Surgical Hospital
2348	MASINT	Measurement And Signature Intelligence
2349	MAVS	Mobile Artillery Vehicle System
2350	MB	Manitoba (postal symbol),Medal of Bravery (Canada)
2351	MBA	Main Battle Area,Main Belt Asteroid,Masters of Business Administration
2352	MBBL	(U.S. Armor Center) Mounted Battlespace Battle Laboratory
2353	MBCC	Migratory Bird Conservation Commission (U.S.)
2354	MBCS	Multi-Byte Character Set
2355	MBI	Moody Bible Institute
2356	MBIDST	Member of the British Institute of Dental and Surgical Technologists
2357	MBM	Meat and Bone Meal
2358	MBT	Main Battle Tank
2359	MBTI	Myers-Briggs Type Indicator
2360	mC	Millicoulomb
2361	MCDL	Model Composition Definition Language
2362	MCFT	Modified Compression Field Theory
2363	MCG	Melbourne Cricket Ground
2364	MCIS	Mellon Collie and the Infinite Sadness
2365	MCM	Mine Counter-Measures
2366	MCMV	Mine Counter-Measure Vessel
2367	MCR	My Chemical Romance
2368	MCSF	Marine Corps Security Forces
2369	MCT	Movement Control Team
2370	MCTIS	Mounted Co-operative Target Identification System
2371	Md	Mendelevium
2372	MDNA	Madonna's 12th studio album title (2012)
2373	MDO	Membership Driven Organisation
2374	MDP	Markov Decision Process
2375	MDT	Mountain Daylight Time (UTC-6 hours)
2376	MDV	Maldives (ISO 3166 trigram)
2377	Me	Messerschmitt
2378	MEAC	Mid-Eastern Athletic Conference (ME-ac)
2379	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)
2380	MEDEVAC	Medical evacuation
2381	MEDS	Mission Essential Data Set
2382	MEG	MagnetoEncephaloGraphy
2383	MELT	Metallic Line/Loop Test (ing)
2384	MEMS	Microelectromechanical System
2385	MER	Mars Exploration Rover
2386	MERL	Mitsubishi Electric Research Laboratories
2387	MES	Manufacturing Execution Systems
2388	METAR	[Meteorological] Aviation Routine weather report
2389	METOC	Meteorological and Oceanographic
2390	MeV	Megaelectronvolt
2391	MEX	Mexico (ISO 3166 trigram)
2392	MEZ	Missile Engagement Zone
2393	MF	Megafarad
2394	mF	Millifarad
2395	MG	Machine Gun,Madagascar (ISO 3166 digram),Major General,Morris Garage
2396	MGPAM	My Gym Partner's a Monkey
2397	MGS	Mobile Gun System
2398	mH	Millihenry
2399	MHC	Major Histocompatibility Complex
2400	MHHW	Mean Higher High Water (nautical charts)
2401	MHL	Marshall Islands (ISO 3166 trigram)
2402	MHLW	Mean Higher Low Water (nautical charts)
2403	MHRA	(UK) Medicines and Healthcare products Regulatory Agency
2404	MHW	Mean High Water (nautical charts)
2405	MHWN	Mean High Water Neaps (nautical charts)
2406	MHWS	Mean High Water Springs (nautical charts)
2407	MHz	Megahertz
2408	Mi	Mebi
2409	MIA	Missing In Action
2410	MICLIC	Mine Clearing Line Charge
2411	MICOM	Missile Command
2412	MID	Midway Islands (ISO 3166 trigram; obsolete 1986)
2413	MIDAS	Man-machine Integration Design and Analysis System
2414	MIDI	Musical Instrument Digital Interface
2415	MIDS	Multi-Function Information Distribution System
2416	MIFG	Shallow Fog (METAR Code)
2417	MIKE	Monitoring of Illegal Killing of Elephants
2418	MIL	Man-In-the-Loop
2419	MILC	Mirrorless interchangeable-lens camera
2420	MILF	Mother I'd Like to Fuck
2421	MIMOSA	MIcroMeasurements Of Satellite Acceleration
2422	MIMPT	Member of the Institute of Maxillofacial Prosthetists and Technologists
2423	MIRA	MILAN Infra-Red Acquisition (thermal sight)
2424	MIRV	Multiple Independent Reentry Vehicle
2425	MISREP	Mission Report
2426	MISSI	Multilevel Information System Security Initiative
2427	MITL	Man-In-The-Loop
2428	MITS	see entry
2429	mJ	Millijoule
2430	MJD	Modified Julian Day
2431	mK	Millikelvin
2432	MKG	Michael Kidd-Gilchrist (American basketball player)
2433	MKSA	Metre-Kilogram-Second-Ampere (system of units)
2434	mL	Millilitre
2435	MLB	Major League Baseball
2436	MLC	Member of the Legislative Council (in India)
2437	MLE	Maximum likelihood estimation
2438	MLHW	Mean Lower High Water (nautical charts)
2439	MLI	Mali (ISO 3166 trigram)
2440	MLL	Major League Lacrosse
2441	MLLW	Mean Lower Low Water (nautical charts)
2442	MLP	My Little Pony
2443	MLT	Malta (ISO 3166 trigram)
2444	MLW	Mean Low Water (nautical charts)
2445	MLWN	Mean Low Water Neaps (nautical charts)
2446	MLWS	Mean Low Water Springs (nautical charts)
2447	Mm	Megametre
2448	mm	Millimetre
2449	MMEV	Multi-Mission Effects Vehicle
2450	MMI	Magical MonkeyZ Inc.
2451	MMI	Man-Machine Interface
2452	MMI	McLean Meditation Institute
2453	MMIC	McLean Meditation Institute Certified
2454	MMO	Massively Multiplayer Online (computer game)
2455	MMOR	Master of Management in Operations Research
2456	MMORPG	Massively multiplayer online role-playing game
2457	MMPR	Mighty Morphin Power Rangers
2458	MMS	Multimission Modular Spacecraft
2459	Mn	Manganese
2460	mN	Millinewton
2461	MNB	Multinational Brigade
2462	MNE	Montenegro (ISO 3166 trigram)
2463	MNMF	Multi-National Maritime Force
2464	MNP	Northern Mariana Islands (ISO 3166 trigram)
2465	MNS	Mission Needs Statement
2466	Mo	Molybdenum
2467	MOA	Museum of Art (Brigham Young University)
2468	MOCAS	Mechanization Of Contract Administration Services
2469	MoD	Ministry of Defence (United Kingdom) and various other countries
2470	modem	Modulator-Demodulator
2471	Moe	Marvel of entertainment
2472	MOE	Measure Of Effectiveness
2473	MOF	Ministry of Finance (Japan)
2474	MOFA	Ministry of Foreign Affairs (Japan)
2475	MOID	Minimum Orbital Intersection Distance
2476	MOJWA	Movement for Oneness and Jihad in West Africa
2477	MOLO	Mobile Other Licensed Operator (UK)
2478	MOM	Master's Degree in Oriental medicine
2479	MOM	Message Oriented Middleware
2480	MoM	Multiple of the median
2481	MoMA	Museum of Modern Art (NYC)
2482	MOND	Modified Newtonian Dynamics
2483	MOO	Measure Of Outcome
2484	MOPP	Mission-Oriented Protective Posture
2485	MORP	Meteorite Observation and Recovery Project
2486	MOSFET	Metal-Oxide-Semiconductor Field-Effect Transistor
2487	MOT	Ministry of Transport (UK)
2488	MOTA	Member of the Orthodontic Technicians Association
2489	MOTESS	Moving Object and Transient Event Search System
2490	MOU	Memorandum Of Understanding
2491	MOW	Maintenance of way (also MW)
2492	MOZ	Mozambique (ISO 3166 trigram)
2493	MPa	Megapascal
2494	mPa	Millipascal
2495	MPAA	Motion Picture Association of America
2496	MPEC	Minor Planet Electronic Circular
2497	MPEG	Motion Pictures (Coding) Experts Group
2498	MPEV	Multi-Purpose Engineering Vehicle
2499	MPF	Maritime Prepositioning Force
2500	MPFC	Medial PreFrontal Cortex
2501	MPG	Miles Per Gallon
2502	MPMC	Medial PreMotor Cortex
2503	MPSI	Member of the Pharmaceutical Society of Ireland
2504	MPSoC	MultiProcessor System-on-Chip
2505	MPSRON	Maritime Propositioning Ship Squadron
2506	MR	Mauritania (ISO 3166 digram)
2507	MRAV	Multi-Role Armoured Vehicle
2508	MRBM	Medium Range Ballistic Missile
2509	MRC	Maintenance Requirements Card
2510	MRD	Motorized Rifle Division
2511	MRGW	Medium-Range Guided Weapon
2512	MRI	Magnetic Resonance Imaging
2513	MRL	Multiple Rocket Launcher
2514	MRPharmS	Member of the Royal Pharmaceutical Society (Great Britain)
2515	MRS	Magnetic Resonance Spectroscopy
2516	MRSA	Methicillin-resistant Staphylococcus aureus
2517	MRTFB	U.S. Major Range and Test Facility Base
2518	Ms	Megasecond
2519	mS	Millisiemens
2520	MSD	Minimum Safe Distance
2521	MSDB	Multi Source Data Base
2522	MSE	Multiple Subscriber Element
2523	MSG	Message
2524	MSLP	Mean Sea Level Pressure
2525	MSNBC	Microsoft National Broadcasting Company Cable news channel (see also msnbc.com)
2526	MSO	Multiple System Operator
2527	MSPB	Merit Systems Protection Board
2528	MSSA	Methicillin-susceptible Staphylococcus aureus
2529	Mt	Meitnerium
2530	mT	Millitesla
2531	MTBF	Mean Time Between Failures
2532	MtF	Male-to-female transsexual
2533	MTG	Magic: The Gathering
2534	MTQ	Martinique (ISO 3166 trigram)
2535	MTT	Methylthiazol tetrazolium (assay)
2536	MTTF	Mean Time To Failure
2537	MTTR	Mean Time To Recover
2538	MTWS	MAGTF Tactical Warfare System
2539	MUS	Mauritius (ISO 3166 trigram)
2540	mV	Millivolt
2541	MVC	Missouri Valley Conference
2542	MVFC	Missouri Valley Football Conference
2543	MVNO	Mobile virtual network operator
2544	mW	Milliwatt
2545	MWESH	Machismo Wizards Extended SHelter (operating system)
2546	MWI	Malawi (ISO 3166 trigram)
2547	MWOA	Mount Wilson Observatory Association
2548	MWTB	Mounted Warfare Test Bed
2549	MY	Malaysia (ISO 3166 digram)
2550	MYOB	Mind Your Own Business
2551	MYS	Malaysia (ISO 3166 trigram)
2552	MYT	Mayotte (ISO 3166 trigram)
2553	n	Nano
2554	N/A	Not Available, Not Applicable, or: No Answer
2555	N3F	National Fantasy Fan Federation
2556	nA	Nanoampere
2557	Na	Sodium (Latin Natrium)
2558	NAA	N-Acetylaspartate
2559	NAAD	North American Air Defense
2560	NAAQS	National Ambient Air Quality Standards
2561	NAAWS	NATO Anti-Air Warfare System
2562	NAC	National Agency Check,U.S. Naval Avionics Center,U.S. Navy Advanced Concepts,North Atlantic Council,Northern Area Command
2563	NACC	North Atlantic Cooperation Council
2564	NACISA	NATO Communications and Information Systems Agency
2565	NACMA	NATO Air Command and Control System Management Agency
2566	NACRA	North America Caribbean Rugby Association (more specifically rugby union)
2567	NAEC	U.S. Naval Air Engineering Center
2568	NAFERA	Native American Free Exercise of Religion Act
2569	NAFLD	NonAlcoholic Fatty Liver Disease
2570	NAFO	Northwest Atlantic Fisheries Organization
2571	NAFTA	North American Free Trade Agreement
2572	NAGPRA	Native American Graves Protection and Repatriation Act
2573	NAICS	North American Industry Classification System
2574	NAIL	Neurotics Anonymous
2575	NAILS	National Airspace Integrated Logistics System
2576	NAIRU	Non Accelerating Inflation Rate of Unemployment
2577	NAK	Negative Acknowledge
2578	NAM	Namibia (ISO 3166 trigram)
2579	NAMBLA	North American Man-Boy Love Association
2580	NAMRL	Naval Aerospace Medical Research Laboratory
2581	NaN	Not A Number (computing)
2582	NAO	UK National Audit Office
2583	NAPS	Navy Acquisition Procedures Supplement
2584	NARA	(U.S.) National Archives and Records Administration
2585	NARAL	National Abortion Rights Action League
2586	NARDAC	Naval Regional Data Automation Center
2587	NARDIC	U.S. Navy Acquisition Research and Development Information Center
2588	NARPV	National Association for Remotely Piloted Vehicles
2589	NASCAR	National Association for Stock Car Auto Racing
2590	NASDAQ	National Association of Securities Dealers Automated Quotations
2591	NASED	National Association of State Election Directors [1][2]
2592	NASH	Non-Alcoholic Steatohepatitis
2593	NASP	National Aerospace Plane
2594	NASS	National Association of Secretaries of State [3]
2595	NatGeo	National Geographic
2596	NaUKMA	National University of Kyiv-Mohyla Academy
2597	NAV	Navigation[al]
2598	NAVCAMS	Naval Communications Area Master Station
2599	NAVCC	National Audio-Visual Conservation Center
2600	NAVCENT	Naval Forces U.S. Central Command
2601	NAVDAC	Naval Data Automation Command
2602	NAVEUR	Naval Forces U.S. European Command
2603	NAVFOR	Naval Force
2604	NAVMACS	Naval Modular Automatic Communication Subsystem
2605	NAVNET	Navy Network
2606	NAVS	Non-Cooperative Airborne Vector Scoring
2607	NAVSAT	Navigation Satellite
2608	NAVSPACECOM	U.S. Navy Space Command
2609	NAVSPASUR	U.S. Naval Space Surveillance System
2610	NAVSTAR	Navigation Satellite Timing And Ranging
2611	NAVTACNET	Navy Tactical Network
2612	NAWC	U.S. Naval Air Warfare Center
2613	Nb	Niobium
2614	NBA	National Basketball Association
2615	NBL	National Basketball League (Australia)
2616	NBT	Nitroblue tetrazolium (assay)
2617	nC	Nanocoulomb
2618	NCA	National Command Authority
2619	NCAR	U.S. National Center for Atmospheric Research
2620	NCB	National Codification Bureau
2621	NCCAM	U.S. National Center for Complementary and Alternative Medicine
2622	NCCUSL	National Conference of Commissioners on Uniform State Laws (U.S.)
2623	NCDDR	U.S. National Center for the Dissemination of Disability Research
2624	NCI	U.S. National Cancer Institute
2625	NCL	New Caledonia (ISO 3166 trigram)
2626	NCLR	National Council of La Raza
2627	NCMO	No Commitment Make Out
2628	NCO	Non-Commissioned Officer
2629	NCP	Net Contracted Purchases
2630	NCR	National Cash Register Co.
2631	NCTR	Non-Co-operative Target Recognition
2632	NCW	Network Centric Warfare
2633	Nd	Neodymium
2634	NDAA	U.S. National Defense Authorization Act
2635	NDBP	Non-Departmental Public Body (Scotland)
2636	NDP	New Democratic Party (Canada)
2637	NDS	Nintendo DS
2638	Ne	Neon
2639	NECTEC	National Electronics and Computer Technology Center (Thailand)
2640	NEMS	National Energy Modeling System (USDOE-EIA)
2641	NEPA	National Environmental Policy Act
2642	NER	Niger (ISO 3166 trigram)
2643	NERICA	New Rice for Africa
2644	NESP	NSA/CSS Enterprise Standards Program
2645	NET	National Educational Television
2646	NETCU	(UK) National Extremism Tactical Co-ordination Unit
2647	NETL	(US) National Energy Technology Laboratory
2648	NETWARS	Network Warfare Simulation
2649	NEX	Navy EXchange
2650	nF	Nanofarad
2651	NF	Norfolk Island (ISO 3166 digram)
2652	NFER	National Foundation for Educational Research
2653	NFG	No Fucking Good
2654	NFHS	National Federation of State High School Associations
2655	NFI	Not F****** Interested
2656	NFK	Norfolk Island (ISO 3166 trigram)
2657	Nfld	Newfoundland
2658	NFPA	National Fluid Power Association (United States)
2659	NFT	No Further Text
2660	NGA	U.S. National Geospatial-Intelligence Agency, Nigeria (ISO 3166 trigram)
2661	NGATS	New Generation Army Targetry System
2662	NGH	Northern General Hospital
2663	NGO	non-governmental organization
2664	NGS	Naval Gunfire Support
2665	nH	Nanohenry
2666	NHANES	National Health and Nutrition Examination Survey
2667	NHB	New Hebrides (ISO 3166 trigram; obsolete 1980)
2668	NHB	No Holds Barred radio (Link)
2669	NHL	National Hockey League
2670	NHRA	National Hot Rod Association
2671	NHS	National Health Service (UK)
2672	Ni	Nickel
2673	NIAAA	U.S. National Institute on Alcohol Abuse and Alcoholism
2674	NIAG	NATO Industrial Advisory Group
2675	NIAID	National Institute of Allergies and Infectious Disease
2676	NIAMD	National Institute of Arthritis and Musculoskeletal Diseases
2677	NIB	New In Box (Internet auction/trading listings)
2678	NIBP	Non-invasive blood pressure monitor
2679	NicA	Nicotine Anonymous
2680	NICAP	National Investigations Committee on Aerial Phenomena
2681	NICE	UK. National Institute for Health and Clinical Excellence
2682	NICHD	National Institute of Child Health and Human Development [4]
2683	NICP	National Inventory Control Point
2684	NIDDK	National Institute of Diabetes and Digestive and Kidney Diseases
2685	NIDRR	National Institute on Disability Research and Rehabilitation
2686	NIEHS	National Institute of Environmental Health Sciences
2687	NIIN	National Item Identification Number
2688	NIMA	National Imagery and Mapping Agency (became NGA)
2689	NIMBY	Not In My Back Yard (See NOME)
2690	NIMG	Not In My Generation
2691	NIN	Nine Inch Nails (band)
2692	NIPR	National Institute of Polar Research (Japan)
2693	NIR	Northern Ireland (FIFA trigram; not eligible for an ISO 3166 or IOC trigram)
2694	NISAC	U.S. National Infrastructure Simulation and Analysis Center
2695	NISCAP	NSA Information System Certification and Accreditation Program
2696	NISER	National Institute of Science Education and Research
2697	NIST	National Institute of Standards and Technology
2698	NITFS	National Imagery Transmission Format Standard
2699	NIU	Niue (ISO 3166 trigram)
2700	nJ	Nanojoule
2701	NJ	New Jersey (postal symbol)
2702	NJHS	National Junior Honor Society
2703	NJPW	New Japan Pro Wrestling
2704	nK	Nanokelvin
2705	NKA	No Known Allergies
2706	nL	Nanolitre
2707	NLB	Non-Linear Battlefield
2708	NLD	Netherlands (ISO 3166 trigram)
2709	NLF	National Liberation Front (disambiguation)
2710	NLL	National Lacrosse League
2711	NLP	Natural Language Processing,Neuro-Linguistic Programming (pseudoscience)
2712	NLRB	National Labor Relations Board
2713	NLW	Non-Lethal Weapon
2714	nm	Nanometre
2715	NM	New Mexico (postal symbol)
2716	NMCI	Navy Marine Corps Intranet
2717	NMCS	Not Mission Capable Supply (SM&R code)
2718	NMD	U.S. National Missile Defense
2719	NMHNFG	Not Made Here,No Fucking Good
2720	NMN	No middle name
2721	NMR	Nuclear Magnetic Resonance
2722	NMSG	NATO Modelling and Simulation Group
2723	nN	Nanonewton
2724	NNE	North North-East
2725	NNSA	U.S. National Nuclear Security Administration
2726	NNW	North North-West
2727	NO	Nitric Oxide,Normally Open,Norway (ISO 3166 and FIPS 10-4 country code digram)
2728	No	Nobelium
2729	NOAA	U.S. National Oceanic and Atmospheric Administration
2730	NOAF	Norwegian Air Force
2731	NOAO	National Optical Astronomy Observatory
2732	NOC	UK. National Oceanography Centre
2733	NODEF	NATO Oceanographic Data Exchange Format
2734	NOGI	New Orleans Grande Isle (award for diving)
2735	NOLA	New Orleans,Louisiana (LA is the official postal code for Louisiana)
2736	NOLF	Navy OutLying Field
2737	NoMBO	Non-mine,Mine-like Bottom Object
2738	NOME	Not on Mars Either
2739	NOME	Not on Mars Either (see NIMBY)
2740	NOPA	National Office Products Alliance,National Office Products Association
2741	NOR	Norway (ISO 3166 trigram)
2742	NORELPREF	No religious preference
2743	NORTHAG	Northern Army Group
2744	NOS	Network Operating System,New Old Stock (Internet auction/trading listings),Nitric Oxide Synthase (enzyme)
2745	NOSA	NATO OSI Security Architecture
2746	NOTAFLOF	No One Turned Away For Lack Of Funds
2747	NOW	National Organization for Women
2748	NP	National Permit,A permit in India for trucks so they can go anywhere in the nation
2749	Np	Neap tide (nautical charts),Neptunium
2750	NP	Nepal (ISO 3166 and FIPS 10-4 country code digram)
2751	NPB	Nippon Professional Baseball
2752	NPC	National Postgraduate Committee,National Provincial Championship (New Zealand rugby competition,now defunct),Navigation Planning Chart
2753	NPCS	Non-Passenger Coaching stock (in Railways)
2754	NPD	Nationaldemokratische Partei Deutschlands (German)
2755	NPDI	New Product Development and Introduction
2756	NPG	Needline/Network Participation Group
2757	NPH	Normal Pressure Hydrocephalus
2758	NPL	National Priorities List,Nepal (ISO 3166 trigram)
2759	NPO	nothing by mouth
2760	NPOV	Neutral Point Of View
2761	NQ	Dronning Maud Land (ISO 3166 digram; obsolete 1983)
2762	NQOCD	Not Quite Our Class,Dear (or Darling). (Upper-class English slang)
2763	NR	Nauru (ISO 3166 and FIPS 10-4 country code digram)
2764	NRA	National Rifle Association
2765	NRAO	National Radio Astronomy Observatory
2766	NRC	(U.S.) National Research Council,Nuclear Regulatory Commission (U.S.)
2767	NRDC	(U.S.) Natural Resources Defense Council
2768	NREL	(U.S.) National Renewable Energy Laboratory
2769	NRK	Norsk Rikskringkasting (Norwegian Broadcasting Corporation)
2770	NRMP	National Resident Matching Program (U.S. medicine)
2771	NRO	(U.S.) National Reconnaissance Office
2772	NRT	Near Real Time
2773	NRTA	National Rat Terrier Association,National Retail Tenants Association,National Retired Teachers Association,Northwest Regional Transmission Association
2774	NRU	Nauru (ISO 3166 trigram)
2775	ns	Nanosecond
2776	nS	Nanosiemens
2777	NS	Norfolk Southern Railway (AAR reporting mark),Nova Scotia (postal symbol),Suriname (FIPS 10-4 country code)
2778	NSA	Naval Support Activity,No Strings Attached
2779	NSABB	National Science Advisory Board for Biosecurity
2780	NSAID	Non-Steroidal Anti-Inflammatory Drug
2781	NSB	Norges Statsbaner (Norwegian State Railways)
2782	NSC	National Security Council
2783	NSDAP	Nationalsozialistische Deutsche Arbeiterpartei (German: 'German National Socialist Workers Party',the formal name of the Nazi Party)
2784	NSDL	National Science Digital Library (US)
2785	NSG	National System for Geospatial-Intelligence
2786	NSN	National Stock Number
2787	NSNA	National Student Nurses' Association
2788	NSO	National Standardization Office (ABCA)
2789	NSS	(U.S.) Naval Simulation System
2790	NST	(UK) Nimrod Software Team
2791	NSTAC	National Security Telecommunications Advisory Committee
2792	NSV	Nikitin-Sokolov-Volkov heavy machine gun (Russian НСВ Никитина-Соколова-Волкова) ru:ПулеметНСВ-12,7 'Утес'
2793	NSW	New South Wales (postal symbol)
2794	nT	Nanotesla
2795	NT	National Trust (UK),Saudi-Iraqi neutral zone (ISO 3166 digram; obsolete 1993),New Technology (Windows NT),Northern Territory (Australia) (postal symbol),Northwest Territories (Canada) (postal symbol)
2796	NTC	National Training Center,Negative Temperature Coefficient (thermistor)
2797	NTDS	Naval Tactical Data System
2798	NTP	Network Time Protocol
2799	NTR	Network Time Reference
2800	NTRA	National Thoroughbred Racing Association
2801	NTSB	National Transportation Safety Board
2802	NTSC	National Television Standards Committee (colloquially,Never Twice the Same Color)
2803	NTV	Non-Tactical Vehicle
2804	NTY	(Internet Abbreviations:) Not Tested Yet; (Alternatively) No Thank You
2805	NTZ	Iraq-Saudi Arabia Neutral Zone (ISO 3166 trigram; obsolete 1993)
2806	NU	Nicaragua (FIPS 10-4 country code),Niue (ISO 3166 digram),Nunavut (postal symbol)
2807	NUL	Null character (ASCII code of control character),National Urban League
2808	NUTS	Nuclear Utilization Target Selection
2809	NUWC	U.S. Naval Undersea Warfare Center
2810	nV	Nanovolt
2811	NVEOL	Night Vision and Electro-Optics Laboratory
2812	NVESD	CERDEC Night Vision and Electronic Sensors Directorate,Fort Belvoir,Virginia
2813	NVG	Night Vision Goggles
2814	NVL	Night Vision Laboratory
2815	nW	Nanowatt
2816	NW	North-West
2817	NW	Nuclear Weapon
2818	NWA	National Wrestling Alliance
2819	NWF	National Wildlife Federation
2820	NWFZ	Nuclear-Weapon-Free Zone
2821	NWHN	U.S. National Women's Health Network
2822	nWo	New World Order (see article for explanation of idiosyncratic capitalization)
2823	NWOAHM	New Wave of American Heavy Metal
2824	NWOBHM	New Wave of British Heavy Metal (sometimes pronounced /n.ˈwɒbm/ as if it were an acronym)
2825	NWRA	National Wildlife Rehabilitators Association
2826	NWSL	National Women's Soccer League (U.S.)
2827	NWT	North-West Territories
2828	NXA	21st arcade game in the Pump It Up series
2829	NXD	Native XML
2830	NXE	New Xbox Experience
2831	NXG	New Cross Gate station
2832	NXL	National XBall League
2833	NXN	Nike Cross Nationals
2834	NY	New York (postal symbol)
2835	NYC	New York City
2836	NYT	New York Times
2837	NYHA	New York Heart Association
2838	NYO	National Youth Orchestra of Great Britain
2839	NYSE	New York Stock Exchange
2840	NZ	New Zealand (ISO 3166 and FIPS 10-4 country code digram)
2841	NZC	New Zealand Cricket
2842	NZL	New Zealand (ISO 3166 trigram)
2843	NzL	Noze looan (online/event listings)
2844	NZOSS	New Zealand Open Source Society
2845	NZRU	New Zealand Rugby Union
2846	OAC	On Approved Credit
2847	OAP	Old Age Pensioner (UK)
2848	OARSI	Osteoarthritis Research Society International
2849	OAS	Organization of American States
2850	OASIS	Ontario Agencies Supporting Individuals with Special Needs
2851	OASIS	Ontario Association of Sewage Industry Services
2852	OASP	Operational Analysis Support Paper/Plan
2853	OAU	Organization for African Unity
2854	OBE	Officer of the Order of the British Empire
2855	OBX	Outer Banks (North Carolina)
2856	OC	Officer Commanding
2857	OCD	Obsessive-Compulsive Disorder
2858	OCFS	Oracle Cluster File System
2859	OCFS2	Oracle Cluster File System Release 2
2860	OCMCC	[2] Orchard County MCC
2861	OCN	Oncology Certified Nurse
2862	OCO	Oort Cloud Object
2863	OCR	Optical Character Recognition
2864	OCS	see entry
2865	ODAS	OCA-DLR Asteroid Survey
2866	ODBC	Open DataBase Connectivity
2867	OEA	(U.S.) Office of Economic Adjustment
2868	OECD	Organisation for Economic Co-operation and Development (international)
2869	OED	Oxford English Dictionary
2870	OEG	Operation Exposure Guidance
2871	OEIS	On-Line Encyclopedia of Integer Sequences
2872	OEM	Original Equipment Manufacturer
2873	OFA	Occipital Face Area
2874	OFDA	U.S Agency for International Development's Office of Foreign Disaster Assistance
2875	OGC	Open Geospatial Consortium
2876	OGD	Other Government Department
2877	OGO	Other Government Organization
2878	OH	Ohio (postal symbol)
2879	OHC	OverHead-Cam engine
2880	OHHLA	Original Hip-Hop Lyrics Archive
2881	OHIP	Ontario Health Insurance Plan
2882	OHMS	On Her (or His) Majesty's Service (also written: O.H.M.S.)
2883	OHP	Observatoire de Haute-Provence
2884	OHSS	Ovarian Hyperstimulation Syndrome
2885	OIC	Officer In Charge
2886	OIF	Operation Iraqi Freedom
2887	OIOC	Oriental & India Office Collections (in the British Library)
2888	OJT	On-the-Job Training
2889	OKC	Oklahoma City
2890	OLED	Organic Light-Emitting Diode
2891	OLS	Operational Linescan System
2892	OMD	Orchestral Manoeuvres in the Dark (1980s pop group)
2893	OME	Osaka Mercantile Exchange
2894	OMFG	Oh My Fucking God
2895	OMG	Oh My God or Or My Gosh
2896	OMGW	Oh My Gosh it's Windy
2897	OMN	Oman (ISO 3166 trigram)
2898	OMNCS	U.S. Office of the Manager for the National Communications System
2899	OMP	Order of Mapungubwe in Platinum
2900	OMS	Order of Mapungubwe in Silver
2901	OMT	Object Model Template
2902	ON	Ontario (postal symbol)
2903	ONC	Orthopaedic Nurse Certified
2904	ONG	Orthodontic National Group
2905	ONI	(U.S.) Office of Naval Intelligence
2906	ONS	Operational Needs Statement
2907	OOAD	Object Oriented Analysis and Design
2908	OOBE	Out-of-body experience
2909	OOCL	Orient Overseas Container Line
2910	OODA	Observation,Orientation,Decision,Action loop (a.k.a. Boyd's Loop)
2911	OOF	Out of Facility
2912	OOMF	One Of My Followers
2913	OOO	Out Of the Office
2914	OOTW	Operations Other Than War
2915	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
2916	OPAC	Online Public Access Catalogue
2917	OPCON	Operational control
2918	OPCW	Organisation for the Prohibition of Chemical Weapons
2919	OPEC	Organization of the Petroleum Exporting Countries
2920	OPFOR	Opposing force
2921	OPINTEL	Operational Intelligence
2922	OPLAN	Operation plan (also OpPlan)
2923	OPORD	Operation order
2924	OPSEC	Operations security,Open Platform for Security
2925	OPSI	Overwhelming post splenectomy infection,UK Office of Public Sector Information
2926	OPTAR	Operational target
2927	OPV	Offshore Patrol Vessel
2928	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)
2929	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
2930	ORAU	Oak Ridge Associated Universities
2931	ORB	Object Request Broker
2932	ORBAT	Order of Battle
2933	ORD	Office of Research and Development,Operational Requirements Document
2934	ORF	Operational iness Float
2935	ORISE	Oak Ridge Institute for Science and Education
2936	ORNL	Oak Ridge National Laboratory
2937	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
2938	ORSA	Oxacillin-resistant Staphylococcus aureus,Operations Research Society of America
2939	OS	Operating System
2940	Os	Osmium
2941	OSA	Order of St. Augustine
2942	OSCE	Organisation for Security and Cooperation in Europe
2943	OSD	U.S. Office of the Secretary of Defense,On-screen Display
2944	OSDL	Open Source Development Labs
2945	OSE	Own Separate Entrance
2946	OSERS	U.S. Department of Education Office of Special Education and Rehabilitative Services
2947	OSETI	Optical SETI also Optical SETI
2948	OSHA	Occupational Safety and Health Administration
2949	OSI	Office of Strategic Influence,Ontario Swine Improvement,Open Source Initiative,Open Systems Interconnection
2950	OSIA	(U.S.) On-Site Inspection Agency
2951	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)
2952	OSL	Open Source License, Optically Stimulated Luminescence, Orbiting Solar Laboratory
2953	OSM	One Saturday Morning
2954	OSOTPBOIAS	One Sec,On The Phone,Be Off In A Sec
2955	OSPA	Operations Security Professional's Association site of OSPA
2956	OSPA	Oregon School Psychologists Association [3]
2957	OSRH	Oružane Snage Republike Hrvatske (en: Armed forces of the Republic of Croatia)
2958	OSS	Office of Strategic Services (1942-1945, forerunner of CIA)
2959	OSU	Ohio State University,Oklahoma State University
2960	OTA	Office of Technology Assessment, Orthodontic Technicians Association
2961	OTAC	Orthodontic Technicians Association Conference,Orthodontic Technicians Association Council
2962	OTC	Over-The-Counter (drugs)
2963	OTD	Off the derech (referring to an Orthodox Jew who has stopped practicing the tenets of his or her faith)
2964	OTEA	(U.S. Army) Operational Test Evaluation Agency
2965	OTI	Office of Transition Initiatives (United States Agency for International Development)
2966	OTOH	On The Other Hand
2967	OTS	Off the scale,sexually untouchable except for a lot of money
2968	OTSBH	Over The Shoulder Boulder Holder
2969	OTW	On The Way
2970	OTYBL	Over To You Blue Leader
2971	OTYRL	Over To You Red Leader
2972	OU	University of Oklahoma
2973	OW	Old Wykehamist
2974	OWN	Oprah Winfrey Network
2975	OX	IATA code for Orient Thai Airlines
2976	OXC	Optical cross-connect
2977	OXM	Official Xbox Magazine
2978	OXT	Oxytocin
2979	OZ	(?) Australia
2980	p	pico
2981	P2P	Peer-to-peer (networking)
2982	pA	picoampere
2983	PAA	Position Area for Artillery
2984	PABX	Private Automated Branch eXchange (company phone system)
2985	PACOM	(U.S.) Pacific Command
2986	PADI	Professional Association of Diving Instructors
2987	PAEK	PolyArylEtherKetone
2988	PAFC	Plymouth Argyle Football Club
2989	PAH	Polycyclic aromatic hydrocarbon
2990	PAHO	Pan American Health Organization
2991	PAK	Pakistan (ISO 3166 trigram)
2992	PAM	Precision Attack Missile
2993	PANS	Pretty Advanced/Awesome Network Services (cf. POTS)
2994	PARC	Palo Alto Research Center
2995	PAROS	Prevention of an Arms Race in Outer Space (treaty)
2996	PARP	(NATO Partnership for Peace) Planning And Review Process
2997	PARWIG	Power Augmented Ram Wing In Ground (aeroplane wing shape)
2998	PAS	See entry
2999	PASR	Personnel Accounting and Strength Reporting
3000	PATH	Port Authority Trans-Hudson
3001	PAYD	Pay As You Drive
3002	PAYE	Pay As You Earn
3003	Pb	Lead (Latin Plumbum)
3004	PB	PolyButylene
3005	PBB	PolyBrominated Biphenyl
3006	PBCK	Problem Between Chair and Keyboard (computer help desk in-joke)
3007	PBD	PolyButaDiene
3008	PBDE	PolyBrominated Diphenyl Ether
3009	PBI	PolyBenzImidazole
3010	PBN	PolyButylene Naphthalate
3011	PBOH	Please Become Old History
3012	PBT	PolyButylene Terephthalate
3013	PBX	Private Branch eXchange (company phone system)
3014	pC	picocoulomb
3015	PCAS	Planet-Crossing Asteroid Survey
3016	PCB	see entry
3017	PCCB	Porsche Ceramic Composite Brake
3018	PCCIP	President's Commission on Critical Infrastructure Protection
3019	PCE	PerChlorEthylene
3020	PCIe	Peripheral Component Interconnect Express (computer bus)
3021	PCL	Passive Coherent Location
3022	PCMCIA	Personal Computer Memory Card International Association (People Can't Memorise Computer-Industry Acronyms)
3023	PCN	Pitcairn Islands (ISO 3166 trigram)
3024	PCPI	Physician Consortium for Performance Improvement (AMA)
3025	PCR	Polymerase chain reaction
3026	PCSSD	Pulaski County Special School District
3027	PCZ	Panama Canal Zone (ISO 3166 trigram; obsolete 1980)
3028	Pd	Palladium
3029	PD	Product Director—Example: CERDEC Product Director C4ISR and Network Modernization
3030	PDL	Pure Dumb Luck (Texan punk band)
3031	PDN	Pull-Down Network
3032	PDRY	People's Democratic Republic of Yemen (obsolete since 1990)
3033	PDT	Pacific Daylight [Saving] Time (UTC-7 hours)
3034	PE	Professional Engineer
3035	PEBCAC	Problem Exists Between Chair and Computer (IT help desk in-joke)
3036	PEBKAC	Problem Exists Between Keyboard and Chair (ditto)
3037	PEEK	PolyEtherEtherKetone
3038	PEET	Partnerships for Enhancing Expertise in Taxonomy
3039	PEK	PolyEtherKetone
3040	PEPFAR	President's Emergency Plan For AIDS Relief
3041	PER	Peru (ISO 3166 trigram)
3042	perl	usually lower case Practical Extraction and Report Language
3043	PES	PolyEtherSulfone
3044	PEST	UK Public Engagement with Science and Technology
3045	PETE	PolyEthyleneTErephthalate
3046	PETP	PolyEthyleneTerePhthalate
3047	pF	picofarad
3048	PFD	Permanent Fund Dividend = personal flotation device
3049	PFE	Permanent Forest Estate
3050	PfP	Partnership for Peace
3051	Pg	petagram
3052	pg	picogram
3053	PGCE	Postgraduate Certificate in Education
3054	PGD	Pre-implantation Genetic Diagnosis
3055	PGENI	Pharmaco-Genetics for Every Nation Initiative
3056	PGH	Pre-implantation Genetic Haplotyping
3057	PGM	Precision-Guided Munition
3058	PGP	Pretty Good Privacy
3059	PHL	Philippines (ISO 3166 trigram)
3060	PHQ	Patient Health Questionnaire
3061	Pi	Pebi
3062	PIB	PolyIsoButylene
3063	PIC	Person In Charge
3064	PICNIC	Problem In Chair Not In Computer
3065	PICS	Private Investment Capital Subscription
3066	PIF	Partners in Flight
3067	PIG	Pipeline Inspection Gauge
3068	PIN	Personal Identification Number
3069	PINF	People In Need Foundation (Czech charitable organisation)
3070	PIPA	Program on International Policy Attitudes
3071	PIR	Priority Intelligence Requirement
3072	PIRA	Provisional Irish Republican Army
3073	PIREPS	Pilot Reports
3074	PITA	Pain In The Ass
3075	PJ	petajoule
3076	pJ	picojoule
3077	PJHQ	Permanent Joint Headquarters
3078	PKE	Partnership of Kindermusik Educators [1] &[2] & [2]
3079	PKI	Public Key Infrastructure (cryptography)
3080	PKU	Phenylketonuria
3081	pL	picolitre
3082	PLAID	Precision Location and Identification
3083	PLB	Personal Locator Beacon
3084	PLC	Public Limited Company (British)
3085	PLCC	Plastic Leaded Chip Carrier (electronics)
3086	PLD	Probable Line of Deployment
3087	PLEBS	People Lacking Everyday Basic Skills
3088	PLF	Parachute Landing Fall
3089	PLIF	Planar Laser-Induced Fluorescence
3090	PLL	Phase-Locked Loop (electronics)
3091	PLM	Polarized Light Microscope/Microscopy
3092	PLMBA	Phospholipid Bilayer Microarray
3093	Pln	Platoon
3094	PLO	Palestine Liberation Organization
3095	PLOKTA	Press Lots Of Keys To Abort
3096	PLP	Platonic Life Partner
3097	PLUTO	Pipe Line Under The Ocean
3098	PLW	Palau (ISO 3166 trigram)
3099	pm	picometre
3100	PMC	Primary Motor Cortex
3101	PMI	Positive Material Identification
3102	PMID	PubMed Identifier
3103	PMMA	PolyMethylMethAcrylate
3104	PMS	Premenstrual Syndrome
3105	PMSL	Piss Myself Laughing (Internet shorthand)
3106	PMT	Premenstrual Tension (UK) (see Premenstrual Syndrome)
3107	pN	piconewton
3108	PNAC	Project for the New American Century
3109	PNVS	Pilot Night Vision Sensor
3110	Po	Polonium
3111	PO	Post Office
3112	PO	Purchase Order
3113	POCD	Post-Operative Cognitive Dysfunction
3114	pod	Plain Old Documentation
3115	POFF	Plain Old Flat File
3116	POGO	Project On Government Oversight
3117	POI	Program Of Instruction
3118	POK	Plane Of Knowledge
3119	POLAD	Political Advice
3120	POMDP	Partially observable Markov decision process
3121	PooS	Poo Sniffer (Internet shorthand)
3122	POS- Point Of Sale terminal (retail industry transaction computers)	Piece Of S**t
3123	POSH	Port Outbound Starboard Home (alleged)
3124	POSSLQ	Person of the Opposite Sex Sharing Living Quarters
3125	POT	Plane Of Tranquility
3126	POTS	Plain Old Telephone Service (cf. PANS),Postural Orthostatic Tachycardia Syndrome
3127	POTUS	President of the United States
3128	POV	Point of view
3129	POW	Prisoner of war
3130	PPASC	(U.S.) Plans and Program Analysis Support Center
3131	PPCLI	Princess Patricia's Canadian Light Infantry (regiment)
3132	PPLI	Precise Participant Location & Identification
3133	PPM	Project Planning and Management
3134	PPO	PolyPhenylene Oxide
3135	PPQN	Pulses Per Quarter Note (ditto)
3136	PPQT	Pre-Production Qualification Test
3137	PPV	Pay-per-view
3138	Pr	Pastor, Priest
3139	PR	Public Relations, Personal Record
3140	Prb	Presbyter
3141	PRBO	Point Reyes Bird Observatory
3142	PRC	People's Republic of China
3143	PRD	CERDEC Product Realization Directorate
3144	PRFG	Partial Fog (METAR Code)
3145	PRI	Puerto Rico (ISO 3166 trigram)
3146	PRK	Democratic People's Republic of Korea (ISO 3166 trigram)
3147	PRM	Personnel iness Management
3148	PRY	Paraguay (ISO 3166 trigram)
3149	Ps	petasecond
3150	pS	picosiemens
3151	PSG	Pacific Seabird Group
3152	PSI	Portable Source Initiative
3153	PSI	Pounds per square inch
3154	PSS	Personnel System Support
3155	PST	Pacific Standard Time (UTC-8 hours)
3156	PSU	Pennsylvania State University
3157	PsyOp	Psychological Operations
3158	pT	picotesla
3159	Pt	Platinum
3160	PTA	Parent-Teacher Association
3161	PTAL	Public Transport Accessibility Level
3162	PTES	People's Trust for Endangered Species
3163	PTFE	PolyTetraFluoroEthylene
3164	PTI	Pardon the Interruption
3165	PTSD	Post-Traumatic Stress Disorder
3166	Pu	Plutonium
3167	Pub	Publication
3168	PUG	PET Users Group
3169	PUN	Pull-Up Network
3170	PUP	Pull-Up Point
3171	PUS	United States Miscellaneous Pacific Islands (ISO 3166 trigram; obsolete 1986)
3172	PV	petavolt
3173	pV	picovolt
3174	PvE	Player versus Environment
3175	PvP	Player versus Player
3176	PVR	Personal Video Recorder
3177	PvZ	Plants vs. Zombies
3178	PW	Palau (postal symbol; ISO 3166 digram)
3179	pW	picowatt
3180	PWA	Pirates With Attitude
3181	PWBA	Pension and Welfare Benefits Administration
3182	PWC	PieceWise Constant (describing a mathematical function)
3183	PwC	PricewaterhouseCoopers (international accounting firm)
3184	PWL	PieceWise Linear (describing a mathematical function)
3185	PWLC	PieceWise Linear and Concave/Convex (describing a mathematical function)
3186	PWR	Pressurized Water Reactor
3187	PX	Post eXchange
3188	PYF	French Polynesia (ISO 3166 trigram)
3189	PYMWYMI	Put Your Money Where Your Mouth Is
3190	Q1	First quarter of the year
3191	Q2	Second quarter of the year
3192	Q3	Third quarter of the year
3193	Q4	Fourth quarter of the year
3194	QA	Qatar (ISO 3166 digram)
3195	Qantas	Queensland And Northern Territory Aerial Services
3196	QAT	Qatar (ISO 3166 trigram)
3197	QB	Quarterback (football)
3198	QCD	Quantum ChromoDynamics
3199	QD	quaque die (Latin for 'daily')
3200	QDR	Quadrennial Defense Review
3201	QEH	Queen Elizabeth's Hospital
3202	QK	Air Canada Jazz (IATA airline designator)
3203	QNH	Regional mean sea level atmospheric pressure (aeronautical Q code)
3204	QPS	Quark Publishing System
3205	QS	quantum sufficit (Latin, 'as much as suffices')
3206	QSCAT	Quick Scatterometer satellite
3207	QSL	Québec Sign Language
3208	QSO	Quasi-Stellar Object
3209	Quango	(British Commonwealth) QUasi Autonomous Non-Governmental Organisation
3210	Quasar	Quasi-stellar radio source
3211	QUB	Queen's University Belfast
3212	QUIET	Q and U Imaging ExperimenT (Q and U are the Stokes parameters of the CMBR polarization)
3213	qv	quod vide (Latin, 'which see')
3214	QZ	Awair (IATA airline designator)
3215	R2I	Resistance to Interrogation
3216	RA	Radio Australia
3217	Ra	Radium
3218	RAAF	Royal Australian Air Force
3219	Rabobank	Raiffeisen-Boerenleenbank (from the two banks that merged to form the modern company)
3220	RACK	Risk Aware Consensual Kink (SM phrase)
3221	Racon	RAdar beaCON
3222	RADA	Royal Academy of Dramatic Art
3223	Radar	Radio Detection And Ranging
3224	RadB	Rad51/Dmc1 homologous protein
3225	RADb	Routing Assets Data Base
3226	RADC	Region Air Defence Commander
3227	RAE	UK Royal Aircraft Establishment (-1991)
3228	RAGBRAI	Register's Annual Great Bicycle Ride Across Iowa
3229	Ramark	RAdar MARKer
3230	RAOC	Rear Area Operation Centre
3231	RARDE	UK Royal Armament Research and Development Establishment (1962-1991)
3232	RARE	Rapid Acquisition with Relaxation Enhancement (MRI technique)
3233	RATELO	Radiotelephone Operator
3234	Rb	Rubidium
3235	RB	Running Back (football)
3236	RBI	Runs Batted In
3237	RC	see entry
3238	RCAF	Royal Canadian Air Force
3239	RCC	Rescue Co-ordination Centre
3240	RCCO	Royal Canadian College of Organists
3241	RCHA	Royal Canadian Horse Artillery (regiment)
3242	RCMP	Royal Canadian Mounted Police
3243	RD	Radio Disney
3244	RDD	Radiological Dispersion Device
3245	RDM	Remotely Delivered/Deliverable Mine
3246	RDT	Remote Digital Terminal
3247	RDV	Remote Detection Vehicle
3248	Re	Rhenium
3249	RE	Royal Engineers
3250	REACT	Remote Electronically Activated Control Technology
3251	REAM	Retired Educators Association of Minnesota
3252	RECCE	Reconnaissance
3253	REEF	Reef Environmental Education Foundation
3254	REM	Rapid Eye Movement (sleep phase),Rosicrucian Egyptian Museum
3255	REME	Royal Electrical and Mechanical Engineers
3256	RERC	Rehabilitation Engineering Research Center
3257	RESNA	Rehabilitation Engineering and Assistive Technology Society of North America
3258	REU	Réunion (ISO 3166 trigram)
3259	Rf	Rutherfordium
3260	RFD	Request for Documentation
3261	RFE	Request for Evaluation
3262	RFEF	Real Federación Española de Fútbol (Spanish for Royal Spanish Football Federation)
3263	RFF	Right of First Refusal (legal term)
3264	RFID	Radio Frequency IDentification
3265	RFL	Rugby Football League
3266	RFP	Request for Proposal
3267	RFQ	Request for Quotation
3268	RFT	Request for Tender
3269	RFU	Rugby Football Union
3270	RG	Republican Guard
3271	Rg	Roentgenium
3272	RGB	Red Green Blue (colour model)
3273	RGBI	Red Green Blue Intensity (ditto)
3274	Rh	Rhodium
3275	RH	Southern Rhodesia (ISO 3166 digram; obsolete 1980)
3276	RHIC	Relativistic Heavy Ion Collider
3277	RHLI	Royal Hamilton Light Infantry (Canadian militia regiment)
3278	RHO	Southern Rhodesia (ISO 3166 trigram; obsolete 1980)
3279	RHU	Replacement Holding Unit
3280	RI	Rhode Island (postal symbol)
3281	RIAA	Recording Industry Association of America
3282	RIBA	Royal Institute of British Architects
3283	RIFA	Red imported fire ant
3284	RILA	Retail Industry Leaders Association
3285	RIMVS	Retinal Imaging Machine Vision System
3286	RINO	Republican In Name Only[1]
3287	RIP	Relief In Place,requiesca[n]t in pace (Latin for 'may he/she/they rest in peace')
3288	RISC	Reduced Instruction Set Computer
3289	RJD	Reduced Julian Day
3290	RKBA	Right to Keep and Bear Arms (Second Amendment to the United States Constitution)
3291	RKO	Radio-Keith-Orpheum Pictures
3292	RLP	Recognised [Operating/Operational] Land Picture
3293	RLS	Restless Leg Syndrome
3294	RLY	Rally Point
3295	RM	see separate disambiguation page
3296	RMC	Robert Menzies College
3297	RMDA	Records Management and Declassification Agency
3298	RMP	Recognised [Operating/Operational] Maritime Picture
3299	RN	Radio Netherlands
3300	Rn	Radon
3301	RNA	RiboNucleic Acid
3302	RNAD	Royal Naval Armaments Depot (UK)
3303	RNPS	Radio Network Planning System
3304	RNZ	Radio New Zealand
3305	RNZI	Radio New Zealand International
3306	ROA	Rate Of Ascent
3307	ROE	Rules Of Engagement
3308	ROFLOL	Rolling On the Floor Laughing Out Loud
3309	ROH	Ring of Honor
3310	ROK	Republic of Korea
3311	ROP	Render Output Pipeline
3312	ROPE	Research Opportunity and Performance Evidence
3313	ROS	Reactive Oxygen Species
3314	ROU	Romania (ISO 3166 trigram)
3315	ROV	Remotely Operated Vehicle
3316	ROZ	Restricted Operations Zone
3317	RPA	Regional Plan Association
3318	RPD	Recognition-Primed Decision-making
3319	RPF	Rwandan Patriotic Front
3320	RPL	Reverse Polish Lisp
3321	RPM	Revolutions Per Minute
3322	RPN	reverse Polish notation
3323	rps	revolutions per second
3324	RPV	Remotely Piloted Vehicle
3325	RQ	Puerto Rico (FIPS 10-4 territory code)
3326	RRB	Railroad Retirement Board
3327	RRN	Recurrence Rate Number
3328	RRP	Recurrent Respiratory Papillomatosis
3329	RRS	Racing Rules of Sailing
3330	RRSP	Registered Retirement Savings Plan (Canada; roughly equivalent to the IRA in the U.S.)
3331	RS	Russia (FIPS 10-4 country code)
3332	RSI	Repetitive Strain Injury
3333	RSJ	Rolled Steel Joist (construction)
3334	RSN	Real Soon Now (coined by author Jerry Pournelle)
3335	RSPB	(UK) Royal Society for the Protection of Birds
3336	RSPCA	Royal Society for the Prevention of Cruelty to Animals
3337	RSR	Required Supply Rate
3338	RSRE	UK Royal Signals and Radar Establishment (1976-1991)
3339	RSRI	Red Sands Research Institute
3340	RTA	Road traffic accident (British)
3341	RTBF	Radio-Télévision belge de la Communauté française
3342	RTF	Rich Text Format
3343	RTFM	the Fucking/Fine Manual
3344	RTG	Radio-isotope Thermoelectric Generator also used for Rubber Tyred Gantry crane
3345	RTI	Run-Time Infrastructure (Simulation)
3346	RTL	see entry
3347	RTP	Real-time Transport Protocol
3348	RTS	see entry
3349	RTT	Round Trip Timing
3350	RU	Russia (ISO 3166 digram)
3351	Ru	Ruthenium
3352	RUC	Royal Ulster Constabulary
3353	RUS	Russia (ISO 3166 trigram)
3354	RUSI	Royal United Services Institute for Defence Studies
3355	RW	Rwanda (ISO 3166 and FIPS 10-4 country code digram)
3356	RWA	Rwanda (ISO 3166 trigram)
3357	RWH	Rain Water Harvesting
3358	RWR	Radar Warning Receiver
3359	RWS	Remote Weapon Station
3360	Rx	Medical prescription (possibly from Latin 'recipere','to take': see entry)
3361	RX	Receive
3362	SARS	Severe Acute Respiratory Syndrome
3363	SBNO	Standing but not operating (in reference to amusement parks)
3364	SCOTUS	Supreme Court of the United States
3365	SCROTUS	So-called Ruler of the United States
3366	SDHC	Secure Digital High Capacity
3367	SDXC	Secure Digital eXtended Capacity
3368	SG	Senegal (FIPS 10-4 country code), Singapore (ISO 3166 digram), Snow Grains (METAR Code), Study Group
3369	SGOTUS	Second Gentleman of the United States
3370	SHO	Showtime (see also sho.com)
3371	sic	sic erat scriptum (Latin for 'thus was it written')
3372	SIRI	Service Interface for Real Time Information
3373	Siri	Speech Interpretation and Recognition Interface (Apple iOS software)
3374	SLOTUS	Second Lady of the United States (the vice president's wife)
3375	SoCon	Southern Conference (U.S. college sports)
3376	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)
3377	SSD	South Sudan (ISO 3166 trigram)
3378	SSDC	U.S. Space and Strategic Defense Command
3379	STB	Surface Transportation Board[2]
3380	SWAC	Southwestern Athletic Conference
3381	SWAN	System for Wearable Audio Navigation
3382	SWAT	Special Weapons And Tactics
3383	SWF	Single White Female
3384	Ta	Tantalum
3385	TAACOM	U.S. Theater Army Area Command
3386	TAADCOORD	Theatre Army Air Defence Co-ordinator
3387	TAAR	Trace Amine-Associated Receptor
3388	TAC	U.S. Tactical Air Command (1946-1992)
3389	TACAN	Tactical Air Navigation
3390	TACCO	Tactical Coordinator
3391	TACCSF	U.S. Theater Aerospace Command & Control Simulation Facility
3392	TACDAR	Tactical Detection And Reporting
3393	TACSOP	Tactical SOP (Standing Operating Procedure)
3394	TADIL	Tactical Digital Information Link
3395	TAI	Target[ed] Area of Interest
3396	TAJ	Tom and Jerry
3397	TAJT	Tom and Jerry Tales
3398	TALES	Technical Advice and Lexicon for Enabling Simulation
3399	TANJ	There Ain't No Justice (used as expletive in the Ringworld novels)
3400	TANP	Terrain-Aware Network Planner
3401	TANSTAAFL	There Ain't No Such Thing As A Free Lunch (coined by author Robert A. Heinlein in his The Moon Is a Harsh Mistress)
3402	TAPPS	Texas Association of Private and Parochial Schools
3403	TARDIS	Time And Relative Dimension In Space (from Doctor Who)
3404	TAS	Tasmania (postal symbol)
3405	TASER	Thomas A. Swift's Electric Rifle
3406	TASM	Tactical Air-to-Surface Missile
3407	TAT	Tourism Authority of Thailand
3408	TATP	TriAcetone TriPeroxide
3409	TATT	Tired All The Time (medical diagnosis in-joke)
3410	Tb	Terbium
3411	TB	Tuberculosis
3412	TBA	to be announced
3413	TBBPA	TetraBromoBisPhenol-A
3414	TBD	to be done, or: to be documented, or: to be determined, or: to be decided
3415	TBF	to be fair
3416	TBH	To Be Honest
3417	TBL	Turkish Basketball League
3418	TBS	Turner Broadcasting System
3419	TBT	Tributyltin
3420	Tc	Technetium
3421	TCAA	Top Counter-Assault Agents
3422	TCAS	Traffic Collision Avoidance System
3423	TCCCS	Tactical Command,Control and Communication System
3424	TCD	Chad (ISO 3166 trigram)
3425	TCHD	Truck Cargo Heavy Duty
3426	TCL	Tool Command Language
3427	TCM	Turner Classic Movies
3428	TCU	Texas Christian University
3429	TCW	Tasty Coma Wife
3430	TCWMS	Tele-Center Workforce Management System
3431	TDA	The Disney Afternoon
3432	TDL	Tactical Data Link
3433	TDM	Time-Division Multiplexing
3434	TDMA	Time Division Multiple Access
3435	TDP	Technology Demonstration Programme
3436	TDRS	Tracking Data and Relay Satellite
3437	Te	Tellurium
3438	TEAL	Tasman Empire Airways Limited
3439	Team	Together everyone achieves more
3440	TEAMS	The East African Marine System (fiber optic cable)
3441	TED	Technology Entertainment Design prize
3442	TENCAP	Tactical Exploitation of National Capabilities
3443	TERS	Tactical Event Reporting System
3444	TES	Tactical Event System
3445	TEST	Thesaurus of Engineering and Scientific Terms
3446	TEU	Twenty-foot equivalent unit (cargo capacity)
3447	TeVeS	Tensor Vector Scalar theory
3448	TFMPP	Trifluorophenylmethylpiperazine
3449	TFR	Total Fertility Rate
3450	TFT	Thin-Film Transistor
3451	Tg	Teragram
3452	TG	Togo (ISO 3166 digram)
3453	TGO	Togo (ISO 3166 trigram)
3454	Th	Thorium
3455	THA	Thailand (ISO 3166 trigram)
3456	THAAD	Terminal High Altitude Area Defence
3457	THEGENTRY	The High-End Group of Earth's New Technologies Research Yield
3458	THEL	Tactical High Energy Laser ACTD
3459	THG	Tetrahydrogestrinone
3460	TIA	Total Information Awareness initiative
3461	TIA	Transient Ischemic Attack
3462	TIALD	Thermal Imaging and Airborne Laser Designation
3463	TIBS	Tactical Information Broadcast System
3464	TIC	Troops In Contact
3465	TIGERS	Topologically Integrated Geographic Encoding and Referencing System
3466	TINC	There Is No Cabal
3467	TIP	Thermal Identification Panel
3468	tits	Toes in the Sand
3469	TJD	Truncated Julian Day
3470	TJK	Tajikistan (ISO 3166 trigram)
3471	TKL	Tokelau (ISO 3166 trigram)
3472	TKM	Turkmenistan (ISO 3166 trigram)
3473	Tl	Thallium
3474	TLA	Three-Letter Abbreviation/Acronym
3475	TLAM	Tomahawk Land Attack Missile
3476	TLATOJL	The Life and Times of Juniper Lee
3477	TLPM	T1 Line Performance Monitor
3478	Tm	Terametre
3479	TMAP	Texas Medication Algorithm Project
3480	TMC	The Movie Channel
3481	TMD	Theatre Missile Defence
3482	TMDK	The Mighty Don't Kneel (Australian professional wrestling stable also active in Japan)
3483	TMI	Too Much Information
3484	TMJ	TemporoMandibular Joint (syndrome)
3485	TMNT	Teenage Mutant Ninja Turtles
3486	TMPG	Transparent Multi-Platform Gateway
3487	TMR	Twin Main Rotors (helicopter type)
3488	TMS	Transcranial Magnetic Stimulation
3489	TMT	Thirty Meter Telescope
3490	TMTOWTDI	There's Than One Way To Do It (from Perl)
3491	TNA	Total Nonstop Action Wrestling
3492	TNO	Trans-Neptunian Object
3493	TOBS	Time of OBServation
3494	TOC	Table Of Contents, Tactical Operations Centre, Temporo-Occipital transition Cortex, Top of Concrete
3495	TOG	Togo (IOC and FIFA trigram,but not ISO 3166)
3496	TOGS	Thermal Observation Gunnery Sight
3497	TOMS	Total Ozone Mapping Spectrometer (satellite instrument)
3498	TON	Tonga (ISO 3166 trigram)
3499	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
3500	TOT	Time On Target
3501	TOW	Tube-launched,Optically tracked,Wire-guided (anti-tank missile)
3502	TP	East Timor (ISO 3166 digram; obsolete 2002),São Tomé and Príncipe (FIPS 10-4 country code),Training Practice,Trident Ploughshares
3503	TPE	Chinese Taipei (IOC and FIFA trigram for the country also known as Taiwan)
3504	TPI	The point is
3505	TPO	Thrombopoietin
3506	TPS	The Pennington School
3507	TPTB	The Powers That Be (often used to refer to the people responsible for the content of TV series or movies)
3508	TQ	Top Qualifier (similar to Pole Position in car racing)
3509	TRA	Technology iness Assessment
3510	TRAC	(U.S. Army) TRADOC Analysis Center
3511	TRACON	Terminal Radar Approach Control
3512	TRADOC	(U.S. Army) Training and Doctrine Command
3513	TRANSCOM	U.S. Transportation Command
3514	TRAP	Tactical Receive equipment and related Applications
3515	TRASANA	TRADOC Systems Analysis Agency
3516	TRD	Towed Radar Decoy
3517	TRIGAT	Third Generation Antitank (missile)
3518	TRL	Technology readiness level
3519	Trp	Troop
3520	TRU	Transuranic
3521	TRUEX	Training in Urban Environment Exercise
3522	TRW	Thompson Ramo Wooldridge Inc.
3523	Ts	Terasecond
3524	TS	Terasiemens,Thunderstorm (METAR code),Tunisia (FIPS 10-4 country code),TinySex,Transsexual, Tough Sh*t
3525	TSA	Theatre Storage Area,Time Slot Allocation,Transportation Security Administration,The Salvation Army
3526	TSEC	Transmission Security Encryption Code
3527	TSL	Transportation Security Laboratory
3528	TSN	The Sporting News (historic name of the periodical now known as Sporting News),The Sports Network
3529	TSO	The Stationery Office (was HMSO until 1996),(U.S.) TRICARE Support Office,Trans-Siberian Orchestra (band)
3530	TSOP	Tactical Standing Operation Procedure,The Sound of Philadelphia (classic 1970s R&B instrumental)
3531	TSR	Terminate and Stay Resident
3532	TSSIA	The Subject Says It All
3533	TT	Teratesla,Terrestrial Time,Tourist Trophy (Motorcycle sport),Trinidad and Tobago (ISO 3166 digram)
3534	TTCT	Torrance Tests of Creative Thinking
3535	TTFN	Ta Ta For Now
3536	TTL	Tax,Title,License,Through-the-lens (photography),Time 'till live,Time to live,Transistor-transistor logic
3537	TTO	Trinidad and Tobago (ISO 3166 trigram)
3538	TTP	Tactics,Techniques,and Procedures,Thrombotic thrombocytopenic purpura,Trailer Transfer Point
3539	TTTEAF	Thomas the Tank Engine and Friends
3540	TTY	TeleTYpewriter (Printer)
3541	TTYL	To You Later (Internet slang)
3542	TTZ	Tetrazolium
3543	TU	Technische Universität (German for 'Technical University'),Thammasat University (Thailand),Turkey (FIPS 10-4 country code)
3544	TUC	Trades Union Congress
3545	TUG	TeX Users Group
3546	TUI	Text-based user interface (cf. CLI),among other uses
3547	TUM	Technische Universität München (Germany)
3548	TUN	Tunisia (ISO 3166 trigram)
3549	TUNS	Technical University of Nova Scotia
3550	TUR	Turkey (ISO 3166 trigram)
3551	TUSK	Tank Urban Survival Kit
3552	TUV	Tuvalu (ISO 3166 trigram)
3553	TV	Television,Teravolt,Transvestite,Tuvalu (ISO 3166 and FIPS 10-4 country code digram)
3554	Tv	Time value,a designation seen on some camera dials for shutter priority mode
3555	TVA	Tennessee Valley Authority
3556	TVG	Television Games (Network),Tick,Very Good,Often used by School Teachers when marking homework etc. (Tick VG)[1][2]
3557	TVR	TreVor (Wilkinson) Racing
3558	TVS	Tornado vortex signature
3559	TW	Republic of China (Taiwan) (ISO 3166 and FIPS 10-4 country code digram),Terawatt
3560	TWAIN	Technology Without An Interesting Name
3561	TWE	Trans World Entertainment
3562	TWI	The Welding Institute
3563	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
3564	TWN	Republic of China (Taiwan) (ISO 3166 trigram)
3565	TWP	Technical Working Paper
3566	TWS	Thermal Weapon Sight,Track While Scan
3567	TX	Texas (postal symbol),Transmit,Turkmenistan (FIPS 10-4 country code)
3568	TXV	Thermostatic Expansion Valve
3569	TYT	Take Your Time,Internet chat abbreviation
3570	TZ	Tanzania (ISO 3166 and FIPS 10-4 country code digram)
3571	TZA	Tanzania (ISO 3166 trigram)
3572	TZC	Tetrazolium chloride
3573	U	Uranium
3574	UA	Unit of Action
3575	UAAP	University Athletic Association of the Philippines
3576	UAB	University of Alabama at Birmingham
3577	UAP	Unidentified Anomalous Phenomena
3578	UAV	Unmanned Aerial Vehicle,Unprotected Anal and Vaginal sex,UB[edit]
3579	UBC	United Baptist Church,University of British Columbia
3580	UBI	Universal Basic Income
3581	UBIGEO	Ubicación Geografica (Spanish for Geographical Location)
3582	UBS	Unbundled Bitstream Services,United Bank of Switzerland,United Banque Suisse
3583	UCBSA	United Cricket Board of South Africa
3584	UCF	University of Central Florida
3585	UCLA	University of California at Los Angeles
3586	UCLES	University of Cambridge Local Examinations Syndicate
3587	UCR	University of California at Riverside
3588	UCR	University of Costa Rica
3589	UCS	Union of Concerned Scientists
3590	UCSB	University of California at Santa Barbara
3591	UCSD	University of California at San Diego
3592	UDAS	Uppsala-DLR Asteroid Survey
3593	UDDI	Universal Description,Discovery and Integration
3594	UDTS	Uppsala-DLR Trojan Survey
3595	UE	Unit of Employment
3596	UEFA	Union of European Football Associations
3597	UESAC	Uppsala-ESO Survey of Asteroids and Comets
3598	UFC	Ultimate Fighting Championship
3599	UFO	Unidentified Flying Object, or: United Farmers of Ontario
3600	UGV	Unmanned Ground Vehicle
3601	UHF	Ultra High Frequency
3602	UHMW	Ultra-High Molecular Weight
3603	UHRB	Ultra-High Resolution Building (simulation)
3604	UIC	University of Illinois at Chicago
3605	UID	User ID
3606	UIUC	University of Illinois at Urbana-Champaign
3607	UJTL	Universal Joint Task List
3608	UKIP	United Kingdom Independence Party
3609	UKR	Ukraine (ISO 3166 trigram)
3610	UL	Underwriters Laboratories
3611	ULF	Ultra Low Frequency
3612	UM	U.S. Minor Outlying Islands (postal symbol; ISO 3166 digram)
3613	UMCP	Unit Maintenance Collection Point
3614	UMES	University of Maryland Eastern Shore
3615	UMI	U.S. Minor Outlying Islands (ISO 3166 trigram)
3616	UMIST	University of Manchester Institute of Science and Technology
3617	UMTS	Universal Mobile Telecommunications System
3618	UN	United Nations
3619	UNABOM	University and airline bomber (FBI case name)
3620	UNAIDS	Joint United Nations Programme on HIV/AIDS
3621	UNAMSIL	United Nations Mission in Sierra Leone
3622	UNCF	United Negro College Fund
3623	UNCLOS	United Nations Convention on the Law of the Sea
3624	UNCSGN	United Nations Conference on the Standardization of Geographical Names
3625	UNCTAD	United Nations Conference on Trade and Development
3626	UNDCP	United Nations Drug Control Programme
3627	UNDE	Union of National Defence Employees (Canada)
3628	UNDP	United Nations Development Programme
3629	UNEP	United Nations Environment Programme
3630	UNFCCC	United Nations Framework Convention on Climate Change
3631	UNFICYP	United Nations Peacekeeping Force in Cyprus
3632	UNGEGN	United Nations Group of Experts on Geographical Names
3633	UNHCR	United Nations High Commission (er) for Refugees
3634	UNICEF	United Nations Children's Fund (originally the United Nations International Children's Emergency Fund)
3635	UNICRI	United Nations Interregional Crime and Justice Research Institute
3636	UNIDO	United Nations Industrial Development Organization
3637	UNIFEM	United Nations Development Fund for Women (from the French Fonds de développement des Nations unies pour la femme)
3638	UNLV	University of Nevada,Las Vegas
3639	UNMIK	United Nations Interim Administration Mission in Kosovo
3640	UNOSOM	United Nations Operations in Somalia
3641	UNPROFOR	United Nations Protection Force (in former Yugoslavia)
3642	UNRISD	United Nations Research Institute for Social Development
3643	UNSM	Union of Nova Scotian Municipalities
3644	UNTAC	United Nations Transitional Authority in Cambodia
3645	UNTAET	United Nations Transitional Administration in East Timor
3646	UNU	United Nations University
3647	UPdM	Università Popolare della Multimedialità
3648	UPF	Universitat Pompeu Fabra (Catalan for: 'Pompeu Fabra University')
3649	UPI	United Press International
3650	UPN	United Paramount Network
3651	UPU	Universal Postal Union
3652	UR	Soviet Union (NATO country code,obsolete 1992)
3653	URBSFA	Union royale belge des sociétés de football association (French for Royal Belgian Football Association)
3654	URD	User Requirements Document
3655	URI	University of Rhode Island
3656	URU	Uruguay (IOC and FIFA trigram, but not ISO 3166)
3657	URY	Uruguay (ISO 3166 trigram)
3658	US	United States (also ISO 3166 and FIPS 10-4 country code digram)
3659	USA	United States of America (also ISO 3166 trigram), United States Army
3660	USAADAC	U.S. Army Air Defense Artillery Center,Fort Bliss,Texas
3661	USAARMC	U.S. Army ARMor Center,Fort Knox,Kentucky
3662	USAAVNC	U.S. Army AViatioN Center,Fort Rucker,Alabama
3663	USAFSPC	U.S. Air Force Space Command
3664	USAIC	U.S. Army Infantry Center,U.S. Army Intelligence Center
3665	USAID	United States Agency for International Development
3666	USAP	Union Sportive des Arlequins Perpignanais,United States Antarctic Program
3667	USAPATRIOT	Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism
3668	USAREUR	United States Army Europe
3669	USB	Universal Serial Bus
3670	USC	United States Code,University of South Carolina,University of Southern California
3671	USCG	United States Coast Guard
3672	USCINCSPACE	United States Commander in Chief,Space Command
3673	USDA	United States Department of Agriculture
3674	USDI	United States Department of the Interior
3675	USDOE	United States Department of Energy
3676	USDRE	(U.S.) Under-Secretary of Defense for Research and Engineering (1978-1986)
3677	USEC	United States Enrichment Corporation
3678	USFL	United States Football League
3679	USFWS	United States Fish and Wildlife Service
3680	USGS	United States Geological Survey
3681	USIA	United States Information Agency
3682	USJFCOM	United States Joint Forces Command
3683	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
3684	USMNT	United States men's national (soccer) team
3685	USNA	United States National Arboretum,United States Naval Academy
3686	USNB	United States Naval Base
3687	USNG	United States National Grid
3688	USNH	United States Naval Hospital
3689	USNI	United States Naval Institute
3690	USNO	U.S. Naval Observatory
3691	USNOFS	United States Naval Observatory Flagstaff Station
3692	USNP	United States Newspaper Program
3693	USNR	United States Navy Reserve
3694	USNS	United States Naval Ship
3695	USNY	University of the State of New York (usually pronounced 'use-knee')
3696	USNZ	University Sport New Zealand
3697	USPS	United States Postal Service
3698	USPTO	United States Patent and Trademark Office
3699	USR	User
3700	USS	United States ship (sometimes meaningless; see Star Trek)
3701	USSPACECOM	United States Space Command
3702	USSR	Union of Soviet Socialist Republics
3703	UST	Underground Storage Tank
3704	USTRANSCOM	United States Transportation Command
3705	USWNT	United States women's national (soccer) team
3706	UT	Universal Time
3707	UTC	Coordinated Universal Time
3708	UTEP	University of Texas at El Paso (pronounced you-tep)
3709	UTM	Universal Transverse Mercator (geographical co-ordinate system)
3710	UUA	Unitarian Universalist Association
3711	UUV	Unmanned Underwater Vehicle
3712	UW	University of Washington
3713	UWO	University of Western Ontario
3714	UWT	Under Water Telephone
3715	UWTG	Under Water Tug
3716	UWW	United World Wrestling
3717	UXO	Unexploded Ordnance
3718	UY	Uruguay (ISO 3166 and FIPS 10-4 country code digram)
3719	UZ	Uzbekistan (ISO 3166 and FIPS 10-4 country code digram)
3720	UZB	Uzbekistan (ISO 3166 trigram)
3721	VACIS	Vehicle And Container Inspection System
3722	VACIS	Victorian Ambulance Clinical Information System
3723	VANOS	Variable Nockenwelle System
3724	VAO	Vienna Art Orchestra
3725	VAT	Vatican City-State (ISO 3166 trigram)
3726	VBA	Visual Basic for Applications
3727	vCJD	Variant Creutzfeldt-Jakob Disease
3728	VCNO	(U.S.) Vice Chief of Naval Operations
3729	VCofS	Vice Chief of Staff
3730	VCR	Video cassette recorder
3731	VCT	Saint Vincent and the Grenadines (ISO 3166 trigram)
3732	VDFS	VisualSVN Distributed File System (VDFS)
3733	VE	Venezuela (ISO 3166 digram)
3734	VEEGA	Venus Earth Earth Gravity Assist manœuvre
3735	VEN	Venezuela (ISO 3166 trigram)
3736	VERITAS	Very Energetic Radiation Imaging Telescope Array System
3737	VfD	s for deletion (used in Wikipedia)
3738	VFM	Value For Money
3739	VFMO	Very Fast Moving Object (astronomy)
3740	VFT	Virtual Function Table
3741	VFW	Veterans of Foreign Wars
3742	VG	British Virgin Islands (ISO 3166 digram)
3743	VGB	British Virgin Islands (ISO 3166 trigram)
3744	VH1	Video Hits One
3745	VHF	Very High Frequency
3746	VIA	Versatile Interface Adapter
3747	VIDS	Visual Information Display System
3748	VII	7 (in Roman numerals)
3749	VIII	8 (in Roman numerals)
3750	VIN	Vehicle Identification Number (ISO 3779)
3751	VIP	Very Important Person
3752	VISCII	VIetnamese Standard Code for Information Interchange
3753	VIT	Vellore Institute of Technology
3754	VIVO	Video In Video Out
3755	VJ	Video Jockey
3756	VLAD	Vertical Line Array DIFAR
3757	VLBA	Very Long Baseline Array
3758	VLF	Very Low Frequency
3759	VLIW	Very Long Instruction Word
3760	VLPFC	VentroLateral PreFrontal Cortex
3761	VLPMC	VentroLateral PreMotor Cortex
3762	VLSI	Very-large-scale integration
3763	VM	Vietnam (FIPS 10-4 country code)
3764	VMF	Marine Fighting Squadron of the United States Marine Corps
3765	VMF	Variable Message Format
3766	VMN	VentroMedial Nucleus (neurophysiology)
3767	VN	Vietnam (ISO 3166 digram)
3768	VNIR	Visible and Near InfraRed
3769	VNM	Vietnam (ISO 3166 trigram)
3770	VNS	see entry
3771	VOA	Voice of America
3772	VOIP	Voice Over Internet Protocol
3773	VOLT	Visual OpenType Layout Tool
3774	VON	Victorian Order of Nurses
3775	VOR	Voice of Russia
3776	VOX	Voice Operated oscillator
3777	VPOTUS	Vice President of the United States
3778	VR	Virtual Reality
3779	VRSG	Virtual Reality Scene Generator
3780	VSAT	Very Small Aperture Terminal ('vee-satt')
3781	VSHORAD	Very Short Range Air Defence
3782	VSO	Voluntary Services Overseas
3783	VSR	Very Special Relativity
3784	VTC	Video Tele-Conference
3785	VTEC	Variable valve Timing and Electronic lift Control
3786	VU	Vanuatu (ISO 3166 digram), Vedanta University
3787	VUB	Vrije Universiteit Brussel (Belgian university)
3788	VUT	Vanuatu (ISO 3166 trigram)
3789	VV	Via Voice,Village Voice
3790	VVAF	Vietnam Veterans of America Foundation
3791	VW	Volkswagen
3792	VZ	Verizon Communications (NYSE code)
3793	W	Tungsten (from German Wolfram),Watt,West
3794	W3C	World Wide Web Consortium
3795	WA	Namibia (from West Africa),Washington state (postal symbol),Western Australia (postal symbol),World Archery (Federation)
3796	WAAC	Women's Army Auxiliary Corps (Britain) (World War I UK)
3797	WAAF	Women's Auxiliary Air Force (World War II UK)
3798	WAC	Western Athletic Conference,Women's Auxiliary Corps (World War II Canada),Women's Army Corps (World War II U.S.)
3799	WACC	Weighted Average Cost of Capital (accounting)
3800	WACS	What-A-Cartoon! Show
3801	WAD	Weapons Alert Designator
3802	WAGGGS	World Association of Girl Guides and Girl Scouts
3803	WAGs	Wives And Girlfriends (most notably of England national football team players at the 2006 FIFA World Cup,although the term existed earlier)
3804	WAL	see entry
3805	WAPIMA	What a pain in my ass
3806	WAR	With All Respect
3807	WAsP	Short form of WAAAAP (Wind Atlas Analysis and Application Program)
3808	WAYP	White And Yellow Pages
3809	WB	Warner Bros.,Welcome Back (Internet shorthand)
3810	Wb	Weber
3811	WBA	Warner Bros. Animation,West Bromwich Albion (F.C.),World Boxing Association
3812	WBC	World Boxing Council
3813	WBE	Work Breakdown Element
3814	WBO	World Boxing Organization
3815	WC	Water Closet,Winston Churchill,World Cup (sports)
3816	WCBO	World Chess Boxing Organisation
3817	WCBP	World Center for Birds of Prey
3818	WCL	World Confederation of Labour
3819	WCS	Weapon Control Status,Wildlife Conservation Society
3820	WCW	World Championship Wrestling
3821	WDC	Western Design Center,World Data Center
3822	WDIN	Wildlife Disease Information Node
3823	WDWR	Walt Disney World Resort
3824	WEBS	Weapon Effectiveness Battle Simulation
3825	WEC	World Extreme Cagefighting
3826	WEEE	Waste Electrical and Electronic Equipment
3827	WEF	World Economic Forum
3828	WEM	West Edmonton Mall
3829	WEU	Western European Union
3830	WEZ	Weapon Engagement Zone
3831	WF	Wallis and Futuna Islands (ISO 3166 digram)
3832	WFC	Women's Forage Corps (World War II UK)
3833	WFD	Weapon of Focused Destruction
3834	WFF	Wallops Flight Facility
3835	WFI	Water for Injection
3836	WFH	Working from home
3837	WFP	World Food Program
3838	WFZ	Weapons Free Zone
3839	WH	Wehrmacht Heer (German World War II army vehicle licence plate code)
3840	WHAM	Wisconsin Hydrogen-Alpha Mapping (telescope)
3841	WHI	Women's Health Initiative
3842	WHIP	Walks plus hits per inning pitched
3843	WHO	World Health Organisation
3844	WHS	(U.S.) Washington Headquarters Services
3845	WI	Western Sahara (FIPS 10-4 country code),Wisconsin (postal symbol),Women's Institute
3846	WIA	Wounded In Action,Wireless Institute of Australia (Amateur Radio)
3847	WIIFM	What's in it for me?
3848	WIMP	Weakly Interacting Massive Particle, Windows,Icons,Menus,Pointers
3849	WIP	Work In Progress
3850	WIPO	World Intellectual Property Organization
3851	WIPP	[Nuclear] Waste Isolation Pilot Plant
3852	WIYN	Wisconsin Indiana Yale NOAO telescope consortium
3853	WK	Wake Island (ISO 3166 digram,obsolete 1986)
3854	WKYP	Will Keep You Posted
3855	WL	Wehrmacht Luftwaffe (German World War II air force vehicle licence plate code)
3856	WLB	Women's Land Brigade (World War II Canada)
3857	WLF	Wallis and Futuna Islands (ISO 3166 trigram)
3858	WLOG	Without Loss Of Generality (see WOLOG)
3859	WLTP	Worldwide harmonized Light vehicles Test Procedure
3860	WM	Wehrmacht Marine (German World War II navy vehicle licence plate code)
3861	WMANUS	West Midlands Area National Union of Students
3862	WMD	World Movement for Democracy
3863	WMI	Wildlife Management Institute
3864	WMO	World Meteorological Organization
3865	WNA	World Nuclear Association
3866	WNF	Will Not Fix
3867	WNIT	Women's National Invitation Tournament
3868	WNSD	What's New,Scooby-Doo?
3869	WNW	West North-West
3870	WO	Warrant Officer
3871	WOF	Width of Fabric
3872	WOFT	Waste Of Fucking Time
3873	WOFTAM	Waste Of Fucking Time And Money
3874	WOI	Wheels Of Italy
3875	WOM	Write Only Memory
3876	WOS	Wilson Ornithological Society
3877	WOSM	World Organization of the Scout Movement, Worldwide Oil Spill Model
3878	WOT	Waste Of Time
3879	WP	White Phosphorus (ammunition)
3880	WPB	War Production Board during World War II
3881	WPE	World Pork Expo
3882	WPK	Wider Peacekeeping
3883	WPT	World Poker Tour,World Premiere Toons
3884	WR	Wide Receiver (football)
3885	WRAC	Women's Royal Army Corps (World War II UK)
3886	WRAIR	Walter Reed Army Institute of Research
3887	WRBWWRM	We Best What We Most
3888	WRC	World Rally Championship
3889	WRC	World Religions Conference
3890	WRNG	Warning
3891	WRS	Worldwide Reference System
3892	WRT	With respect to (especially in fields such as Mathematics)
3893	WRT	NHS Workforce Review Team
3894	WRT	The Linksys routers whose model name start with 'WRT'
3895	WRT	Third party firmware for the Linksys WRT routers and compatible models from other vendors.
3896	WRT	Wallace Roberts & Todd,LLC (Urban Planning and Design)
3897	WRT	Web Runtime (WRT) is a portable application framework developed by Nokia that allows the creation of widgets on the S60 Platform.
3898	WRT	Wholesale,Trade,Retail sector,category in employment and economics statistics
3899	WRT	Wireless Receiver/Transmitter (computer networks/IT)
3900	WRT	Wireless Ronin Technologies (digital signage)
3901	WRT	World Rally Team
3902	WRT	Writer Response Theory
3903	WRVS	Women's Royal Voluntary Service,now only known by the acronym (UK)
3904	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)
3905	WSC	Weapon System Catalogue
3906	WSDL	Web Services Description Language
3907	WSJ	(The) Wall Street Journal
3908	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)
3909	WSROC	Western Sydney Regional Organisation of Councils
3910	WSSM	Winchester Super Short Magnum (family of rifle cartridges)
3911	WSTC	Women Signallers Territorial Corps (World War II UK)
3912	WSW	West South-West
3913	WTB	Wales Tourism Board,Warenterminbörse Hannover
3914	WTC	World Trade Center
3915	WTF	What the fuck?; also What a Terrible Failure (android)
3916	WTFH	What The Fucking Hell
3917	WTH	What the Hell
3918	WTO	World Trade Organization
3919	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)
3920	WUBU2	What you been up to
3921	WUU2	What you up to (Internet slang popular with teenagers)
3922	WV	West Virginia (postal symbol)
3923	WVA	World Veterinary Association
3924	WVIAC	West Virginia Intercollegiate Athletic Conference
3925	WVR	Women's Volunteer Reserve (World War II UK)
3926	WVSC	Women's Volunteer Service Corps (World War II Canada)
3927	WVU	West Virginia University
3928	WW	see entry
3929	WWE	World Wrestling Entertainment
3930	WWI	World War I
3931	WWII	World War II
3932	WWIII	World War III
3933	WWJD	What would Jesus do?
3934	WWS	Wheaton Warrenville South High School
3935	WWWF	World Wide Wrestling Federation
3936	WXO	Weather [Executive] Officer
3937	WY	Wyoming (postal symbol)
3938	WZ	Swaziland (FIPS 10-4 country code)
3939	XBML	eXtended Business Modelling Language
3940	XC	Ninety (in Roman numerals)
3941	XCBL	XML Common Business Library
3942	XD	Used in chatrooms or email for smiley face. X is the eyes; squinted D is the mouth; XD.
3943	Xe	Xenon
3944	XFA	XML Forms Architecture
3945	XFC	Xtreme Fighting Championships
3946	XFD	Fighter aircraft made by Douglas
3947	Xfe	X File Explorer
3948	XFF	X-Forwarded-For
3949	XFG	Exfoliation glaucoma
3950	XFR	Automobile made by Jaguar
3951	XFT	X FreeType interface library
3952	XG	Automobile made by Hyundai
3953	XGA	Extended Graphics Array
3954	XGP	Extreme Game Player
3955	XHTML	eXtensible Hypertext Markup Language
3956	XI	Eleven (in Roman numerals)
3957	XII	Twelve (in Roman numerals)
3958	XIII	Thirteen (in Roman numerals)
3959	XIV	Fourteen (in Roman numerals)
3960	XIX	Nineteen (in Roman numerals)
3961	XJS	Automobile made by Jaguar
3962	XKB	X keyboard extension
3963	XKE	Automobile made by Jaguar
3964	XKR	Automobile made by Jaguar
3965	XML	eXtensible Markup Language
3966	XMSF	eXtensible Modelling and Simulation Framework
3967	XNA	X-No-Archive,Xeno Nucleic Acid
3968	XNC	X Northern Captain
3969	XNU	X is Not Unix
3970	XP	eXperience Point (role-playing games)
3971	XQJ	XQuery API for Java™
3972	XRAY	X-Ray
3973	XRML	eXtensible Rights Markup Language
3974	XS	Xiaolin Showdown
3975	XSL	eXtensible Style Language
3976	XTMH	eXtreme Technology Multiprocessor Hyperlanguage
3977	XUL	XML User Interface Language
3978	XV	Fifteen (in Roman numerals)
3979	XVI	Sixteen (in Roman numerals)
3980	XVII	Seventeen (in Roman numerals)
3981	XVIII	Eighteen (in Roman numerals)
3982	XWF	Xcitement Wrestling Federation
3983	XX	Twenty (in Roman numerals)
3984	Xyl	Xylobium
3985	XZN	Triple square screw driver
3986	y	Yocto-
3987	Y2K	Year Two Thousand
3988	yA	Yoctoampere
3989	Ya	Yottayear
3990	YaBPr	Yet another Brother Pat rant
3991	YABSLAG	Yet another boy singing like a girl
3992	YAC	Youth-Adult Committee
3993	YAFLA	Yet Another Five Letter Abbreviation
3994	YAP	Young Aspiring Professional
3995	YB	Youcef Benzouada (Southern Algerian name)
3996	Yb	Ytterbium
3997	yC	Yoctocoulomb
3998	YC	Yottacoulomb
3999	YDS	Yosemite Decimal System (climbing)
4000	YE	Yemen (ISO 3166 digram)
4001	YEM	Yemen (ISO 3166 trigram)
4002	yF	Yoctofarad
4003	YF	Yottafarad
4004	yg	Yoctogram
4005	Yg	Yottagram
4006	YGCO	Yamaneko Group of Comet Observers
4007	Ygo	Yu-Gi-Oh!
4008	yH	Yoctohenry
4009	YH	Yottahenry
4010	YHBT	You Have Been Trolled
4011	YHII	You Have It Inside
4012	YHS	Ya Hoor sur!
4013	Yi	Yobi
4014	Yippie	Youth International Party + suffix
4015	yJ	Yoctojoule
4016	YJ	Yottajoule
4017	yK	Yoctokelvin
4018	YK	Yottakelvin
4019	YKYFCW	You know you're from Christchurch when (post-earthquake joke)
4020	yL	Yoctolitre
4021	YL	Yottalitre
4022	ym	Yoctometre
4023	Ym	Yottametre
4024	YMMD	You Make My Day
4025	yN	Yoctonewton
4026	YN	Yottanewton
4027	YOLO	You Only Live Once
4028	YPA	Yards per Pass Attempt (football statistic)
4029	YPIO	Your Problem Is Obvious
4030	YPO	Young Presidents' Organization
4031	ys	Yoctosecond
4032	yS	Yoctosiemens
4033	Ys	Yottasecond
4034	YS	Yottasiemens
4035	YSI	Young Scots for Independence
4036	yT	Yoctotesla
4037	YTD	Year-To-Date
4038	YTM	Yield to Maturity
4039	YTS	Youth Training Scheme
4040	YTT	Yoshi Topsy-Turvy
4041	Yuppie	Young Urban Professional + suffix
4042	yV	Yoctovolt
4043	YV	Yottavolt
4044	yW	Yoctowatt
4045	YW	Yottawatt
4046	YYH	YuYu Hakusho
4047	z	Zepto
4048	Z	Zetta
4049	zA	Zeptoampere
4050	ZAF	South Africa (ISO 3166 trigram)
4051	ZAMS	Zero age main sequence
4052	ZAS	Zylinder Abschaltung System
4053	ZBT	Zero-Balance Transfer (accounting)
4054	zC	Zeptocoulomb
4055	ZC	Zettacoulomb
4056	ZCM	(n) ZENworks Configuration Management
4057	ZCMK	Zone Control Master Key
4058	ZCU	Zimbabwe Cricket Union