/ Dictionary / Index D dunce: Meaning and Definition of Find definitions for: dunce Pronunciation: (duns), [key] — n. a dull-witted, stupid, or ignorant person; dolt. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dunce (Thesaurus) Duncanville dunce cap Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language