Alphabetical Listing of Uncategorized Acronyms
- 2.5G — Second-and-a-half-generation Mobile Telephone System
- 2D — Two
- 2G — Second
- 3D — Three
- 3G — Third
- 3I — Investors In Industry (venture Capitalists)
- 3M — Minnesota Mining And Manufacturing Company
- 4D — Four-dimensional (usually Three Spatial Plus One Temporal Dimension
- 4G — Fourth-generation Mobile Telephone System
- 4GL — Fourth-generation Programming Language
- 4WD — Four Wheel Drive (cf. AWD)
- A — Acro (joke Acronym)
- A — Ampere
- A — Atto
- A&S — Armament & Standardisation
- A.K.A. — Also Known As
- A/C — Air Conditioned/Conditioning – Aircraft
- A/D — Analog/Digital
- A/S — Anti-submarine
- A2ATD OR A?ATD — Anti
- A2C2 OR A?C? — Army Airspace Command And Control
- A4 — Many
- AA — Achieved Availability – Alcoholics Anonymous -Armed Forces Americas (postal Symbol) – Aruba (FIPS 10-4 Territory Code) -Assembly Area – Automobile Association- Avenue of Approach
- AA — Afar Language (ISO 639-1 Code)
- AA — Attoampere
- AAA — Administration
- AAAI — American Association For Artificial Intelligence
- AAAS — American Association For The Advancement of Science
- AAAV — Advanced Amphibious Assault Vehicle
- AAC — Army Air Corps (British Army)
- AAD — Analogue-Analogue-Digital (CD Quality) – Australian Antarctic Division
- AADAC — Alberta Alcohol And Drug Abuse Commission
- AADC — Area Air Defence Commander
- AADD — Atlanta Alliance On Developmental Disabilities
- AADT — Annual Average Daily Traffic Flow
- AAFC — U.S. Army Air Corps Ferrying Command (1941-1942) – All-America Football Conference (1946?1949)
- AAFES — Army And Air Force Exchange Service
- AAI — Applied Artificial Intelligence
- AAIS — Advanced Airborne Interceptor Simulator
- AAM — Air-to-Air Missile
- AAN — American Academy of Nursing
- AANEAS — Anglo-Australian Near-Earth Asteroid Survey
- AAODL — Atmospheric Aerosols And Optics Data Library
- AAP — Advanced Acquisition Plan – Allied Administrative Publication – American Academy of Pediatrics
- AAPC — Accounting And Auditing Policy Committee
- AAR — After-Action Review – Association of American Railroads
- AAR — Afar Language (ISO 639-2 Code)
- AARP — (i/s) American Association of Retired Persons (now Officially Known Only By The Initials)
- AAS — Advanced Automation System – American Astronomical Society (double-A-S)
- AASPEM — Advanced Air-to-air System Performance Evaluation Model
- AAT — Australian Antarctic Territory
- AAV — Amphibious Assault Vehicle
- AAWC — Anti-Air Warfare Commander
- AB — Able Seaman (rank)
- AB — Abkhaz Language (ISO 639-1 Code)
- ABA — American Bar Association – American Basketball Association – American Beverage Association – American Bicycle Association – American Birding Association – Australian Broadcasting Authority
- ABB — ASEA Brown Boveri (Swiss-Swedish Multinational Company)
- ABBA — Agnetha
- ABC — Abstinence
- ABCA — American Border Collie Association – American
- ABCS — (U.S.) Army Battle Command System
- ABET — Accreditation Board For Engineering And Technology
- ABIN — Ag?ncia Brasileira De Intelig?ncia (Brazilian Intelligence Agency)
- ABK — Abkhaz Language (ISO 639-2 Code)
- ABL — American Basketball League
- ABLE — AirBorne Law Enforcement (police Air Support Unit)
- ABM — Anti-Ballistic Missile – Asynchronous Balanced Mode – Automated Banking Machine
- ABMC — American Battle Monuments Commission
- ABN — Australian Business Number (a Number Issued By The Australian Government As Registration of A Business And Used For Taxation Purposes)
- ABPI — Association of The British Pharmaceutical Industry
- ABRSM — Associated Board of The Royal Schools of Music
- ABS — Acrylonitrile Butadiene Styrene – Anti-lock Braking System
- ABSA — Amalgamated Banks of South Africa (ab-sa)
- ABSTRIPS — Abstraction-Based STRIPS
- ABW — Aruba (ISO 3166 Trigram)
- AC — Adriamycin-Cyclophosphamide (chemotherapy) – Air Conditioning – Alternating Current – Ante Christum (Latin
- AC — Actinium
- AC — Attocoulomb
- ACA — Airspace Control Authority – Airspace Co-ordination Area – A Current Affair
- ACARS — Aircraft Communication Reporting System
- ACAS — Aboriginal Children’s Advancement Society – Advisory
- ACB — Asociaci›n De Clubs De Baloncesto (Spanish For Association of Basketball Clubs)
- ACC — U.S. Air Combat Command – Air Component Commander – Altocumulus Castellanus – Atlantic Coast Conference – Automatic Climate Control – Area Control Center
- ACCA — Automatic Cloud Cover Assessment
- ACCAC — Awdurdod Cymwysterau
- ACCD — American Coalition of Citizens With Disabilities
- ACCS — Air Communications And Control Squadron
- ACDA — Arms Control & Disarmament Agency
- ACDC — Alternating Current Direct Current
- ACE — Air Combat Emulator (computer Game) – Allied Command Europe – Armored Combat Earthmover – Automatic Computing Engine
- ACES — Aerolineas Centrales De Colombia
- ACF — American Car And Foundry – American Culinary Federation – Administration For Children And Families
- ACHT — Average Call Hold Time
- ACID — Atomicity
- ACINT — Acoustic Intelligence
- ACK — Acknowledge (telecommunications; Cf. NAK)
- ACL — Access Control List – Anterior Cruciate Ligament
- ACLOS — Automatic CLOS (missile Control System)
- ACLS — Alternate Crops And Systems Lab
- ACLU — American Civil Liberties Union