/ Dictionary / Index J jump-start: Meaning and Definition of Find definitions for: jump-start Pronunciation: (jump'stärt"), [key] — n. the starting of an internal-combustion engine that has a discharged or weak battery by means of booster cables. —v.t. to give a jump-start to: to jump-start an engine. to enliven or revive: to jump-start a sluggish economy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: jump-start (Thesaurus) jump spark jumpsuit Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language