/ Dictionary / Index D duple: Meaning and Definition of Find definitions for: du•ple Pronunciation: (d'pul, dy'-), [key] — adj. having two parts; double; twofold. having two or sometimes a multiple of two beats in a measure: duple meter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: duple (Thesaurus) duplation Dupleix Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language