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