Definition for a.a. (2 of 2)


antiaircraft artillery.
Associate in Accounting. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Word Origin and History for a.a.


also AA, abbreviation of Alcoholics Anonymous, attested by 1941, American English. The group name was the title of a book published in 1938 by the founder, Bill W.

Online Etymology Dictionary, © 2010 Douglas Harper