/ Dictionary / Index D disaffirm: Meaning and Definition of Find definitions for: dis•af•firm Pronunciation: (dis"u-fûrm'), [key] — v.t. to deny; contradict. to annul; reverse; repudiate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. disaffiliate disaggregate Related Content Daily Word Quiz: modify Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language