/ Dictionary / Index A A.I.A.: Meaning and Definition of Find definitions for: A.I.A. Pronunciation: [key] American Institute of Architects. American Insurance Association. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ai Aias Related Content Daily Word Quiz: alacrity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language