/ Dictionary / Index D duce: Meaning and Definition of Find definitions for: du•ce Pronunciation: (d'chāIt.d'che), [key] — pl. -ces, -ci a leader or dictator. the leader: applied esp. to Benito Mussolini as head of the fascist Italian state. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: duce (Thesaurus) Duccio di Buoninsegna du Cerceau Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language