/ Dictionary / Index D dumfound: Meaning and Definition of Find definitions for: dum•found Pronunciation: (dum-found', dum'found"), [key] — v.t. to dumbfound. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Dumdum fever Dumfries Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language