/ Dictionary / Index A A.E.F.: Meaning and Definition of Find definitions for: A.E.F. Pronunciation: [key] American Expeditionary Forces; American Expeditionary Force. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Aeëtes Aegadian Islands Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language