A.a.
name, noun
name, noun ·Rare ·Advanced level
Definitions
Noun
- 1 achievement age countable, uncountable
- 2 achievement age
- 3 amino acid countable, uncountable
- 4 amino acid
- 5 antiaircraft; antiaircraft artillery countable, uncountable
Show 4 more definitions
- 6 arteriae
- 7 arteriae countable, uncountable
- 8 associate in accounting (a degree) countable, uncountable
- 9 associate of arts / associate in arts (a degree) countable, uncountable
Proper Noun
- 1 Alcoholics Anonymous
Synonyms
All synonymsMore for "a.a."
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.