/ Dictionary / Index U upsurge: Meaning and Definition of Find definitions for: up•surge Pronunciation: (v.up-sûrj'n.up'sûrj&sec), [key] — v., n. -surged, -surg•ing, —v.i. to surge up; increase; rise: Water upsurged. Crime upsurged. —n. the act of surging up; a large or rapid increase: an upsurge in sales. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: upsurge (Thesaurus) upstroke upsweep Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language