/ Dictionary / Index D duration: Meaning and Definition of Find definitions for: du•ra•tion Pronunciation: (doo-rā'shun, dyoo-), [key] — n. the length of time something continues or exists (often used with the). continuance in time. (in the philosophy of Bergson) a temporal continuum, intuitively known, within which the élan vital operates. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: duration (Thesaurus) Duranty durative Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language