/ Dictionary / Index D Dehra Dun: Meaning and Definition of Find definitions for: Deh•ra Dun Pronunciation: (dā'ru dn'), [key] a city in NW Uttar Pradesh, in N India. 199,443. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dehort dehull 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