/ Dictionary / Index A AAF: Meaning and Definition of Find definitions for: AAF Pronunciation: [key] Allied Air Forces. (in the U.S., formerly) Army Air Forces. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. AAES A.Agr. Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language