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List of acronyms and initialisms: A

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This list contains acronyms, initialisms, and pseudo-blends that begin with the letter A.

For the purposes of this list:

  • acronym = an abbreviation pronounced as a series of constituent letters, e.g., SARS = severe acute respiratory syndrome
  • initialism = an abbreviation pronounced wholly or partly using the names of its constituent letters, e.g., CD = compact disc
  • pseudo-blend = an abbreviation whose extra or omitted letters means that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words).
(a) = acronym in the example: SARS - (a) Severe acute respiratory syndrome
(i) = initialism in the example: CD - (i) Compact disc
(p) = pseudo-blend in the example: UNIFEM - (p) United Nations Development Fund for Women
(s) = symbol (none of the above, representing and pronounced as something else; for example: MHz - Megahertz)

[edit] Add new entries here or in the sub-pages

Please add your own entries, in this page or in the appropriate sub-page. Use a quasi-dictionary order, with lowercase treated the same as uppercase and ignoring non-alphanumeric characters (hyphens and such). This means that only alphanumeric characters have any significance in determining order, and that lowercase letters occupy the same ordering position as uppercase (in tie-breaker cases, list lower case first). For example: Ka appears before KA. (This differs from a strict ASCII ordering)

(Main list of acronyms and initialisms)

Contents: Top - A0-9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ
  • a - (s) Atto
  • A - (s) Ampere
  • A - (i) acronym (joke acronym)

[edit] A0-9

  • A2ATD or A²ATD - (i) Anti-Armour Advanced Technology Demonstration
  • A2C2 or A²C² - (i) Army Airspace Command and Control
  • A4 - many, including a European standard office paper size; see entry

[edit] AA

[edit] AB

[edit] AC

[edit] AD

[edit] AE

  • AE - (s) Armed Forces Africa/Canada/Europe/Middle East (postal symbol) - United Arab Emirates (ISO 3166 digram; FIPS 10-4 country code)
  • AEF - (i) American Expeditionary Force
  • AEGIS - (p) Airborne Early warning Ground environment Interface Segment (fake etymology)
  • AEI-T - (i) Army Enterprise Infostructure-Transport
  • aeq. - (p) aequalis (Latin, "equal")
  • AESR - (i) Aeronautical Equipment Service Record
  • aet. - (p) aetatis (Latin, "of age", "aged")
  • aet - (i) After extra time (Football)
  • AEW - (i) Airborne Electronic Warfare - Airborne Early Warning

[edit] AF

[edit] AG

[edit] AH

[edit] AI

[edit] AJ

[edit] AK

[edit] AL

[edit] AM

[edit] AN

[edit] AO

[edit] AP

[edit] AQ

[edit] AR

[edit] AS

[edit] AT

[edit] AU

  • Au - (s) Gold
  • AU - (i) African Union (was OAU before 2000) - American University - (s) Astronomical Unit - Australia (ISO 3166 digram) - Austria (FIPS 10-4 country code)
  • AUC - (i) Ab Urbe Condita / Anno Urbis Conditae (Latin "from the founding of the city" / "in the year since the founding of the city") (of Rome) - Area Under the Curve (concentration time curve; medicine)
  • AUS - (s) Australia (ISO 3166 trigram)
  • AUSCANZUKUS - (p) Australia, Canada, New Zealand, United Kingdom, United States (security designation)
  • AUT - (s) Austria (ISO 3166 trigram)
  • AUTL - (i) Army Universal Task List

[edit] AV

  • aV - (s) Attovolt
  • AV - (s) Anguilla (FIPS 10-4 territory code) - (i) Audio-Visual - (s) Aviation
  • AVCATT-A - (p) (U.S. Army's) Aviation Combined Arms Tactical Trainer-Aviation [Reconfigurable Manned Simulator]
  • AVDLR - (p) Aviation Depot Level Repair
  • AVGP - (i) Armoured Vehicle, General Purpose
  • AVI - (i) Audio Video Interleave
  • AVIM - (p) Aviation Intermediate Maintenance
  • AVLB - (i) Armoured Vehicle Launched Bridge
  • AVO - (i) Apprehended Violence Order
  • AVRE - (i) Armoured Vehicle Royal Engineers
  • AVTB - (i) Armoured Vehicle Test Bed - (p) Aviation Test Bed
  • AVUM - (p) Aviation Unit Maintenance

[edit] AW

[edit] AX

[edit] AY

  • AY - (s) Antarctica (FIPS 10-4 territory code)
  • AYBABTU - All Your Base Are Belong To Us
  • AYU - (i) As Yet Unknown

[edit] AZ

[edit] See also

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