/ Dictionary / Index J jim dash: Meaning and Definition of Find definitions for: jim' dash" Pronunciation: ( jim), [key] — Print., Journalism. Print.,Journalism. a dash, often three ems long, used within a headline, between the headline and the main body of printed matter, between items in a single column, or between related but different material within a story. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. jim-dandy Jiménez Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language