/ Dictionary / Index D duplicity: Meaning and Definition of Find definitions for: du•plic•i•ty Pronunciation: (d-plis'i-tē, dy-), [key] — pl. -ties deceitfulness in speech or conduct; speaking or acting in two different ways concerning the same matter with intent to deceive; double-dealing. a twofold or double state or quality. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: duplicity (Thesaurus) duplicitous dupondius Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language