/ Dictionary / Index D Duquesne: Meaning and Definition of Find definitions for: Du•quesne Pronunciation: (d-kān', dy- for 1 also Fr. dy-ken'), [key] — n. 1610–88, French naval commander. a city in SW Pennsylvania, on the Monongahela River. 10,094. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Duque de Caxias Du Quoin Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language