/ Dictionary / Index D didn't: Meaning and Definition of Find definitions for: did•n't Pronunciation: (did'nt), [key] contraction of did not. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Diderot dido Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language