/ Dictionary / Index U uprush: Meaning and Definition of Find definitions for: up•rush Pronunciation: (up'rush"), [key] — n. an upward rush, as of water or air. an abrupt increase: an uprush of business during the noon hour. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. uprouse UPS Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language