Word.ws English Dictionary

a.a.

a.a. noun: achievement age.

Noun (1)

a.a.

  1. achievement age
  2. amino acid
  3. arteriae

Noun (2) capitalized: A.A.

A.A. (countable and uncountable, plural A.A.s)

  1. achievement age
  2. amino acid
  3. antiaircraft; antiaircraft artillery
  4. arteriae
  5. associate in accounting (a degree)
  6. associate of arts / associate in arts (a degree)

Proper noun capitalized: A.A.

A.A.

  1. Alcoholics Anonymous

Forms of a.a.

pluralA.A.s

Phrases with a.a.

Questions about a.a.

What does a.a. mean?
A.a. means achievement age.
What part of speech is a.a.?
A.a. can be a noun or a proper noun.
What is the plural of a.a.?
The plural of a.a. is A.A.s.

Words near a.a. in the dictionary

  1. A. M. A.s
  2. A. N. Other
  3. A. Pascual
  4. A. S. I.
  5. A. U.
  6. a.a.
  7. A.A. Ag.
  8. A.A.A.
  9. A.A.A.L.
  10. A.A.A.S.
  11. A.A.C.C.A.

Source and license

Adapted from Wiktionary: a.a. (page history and authors); A.A. (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “a.a..” Word.ws, https://word.ws/a.a.. Based on Wiktionary, CC BY-SA 4.0.