/ Dictionary / Index J jump line: Meaning and Definition of Find definitions for: jump' line" Pronunciation: [key] — Journalism. Journalism. a line of type identifying the page on or from which a newspaper story is continued. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. jump jet jumpmaster Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language