/ Dictionary / Index O outrush: Meaning and Definition of Find definitions for: out•rush Pronunciation: (out'rush"), [key] — n. a rapid or intense outflow: an outrush of water from a bursting pipe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. outrunner outsail Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language