/ Dictionary / Index A AOA: Meaning and Definition of Find definitions for: AOA Pronunciation: [key] Administration on Aging. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. A/O ao dai Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language