/ Dictionary / Index J jassid: Meaning and Definition of Find definitions for: jas•sid Pronunciation: ( jas'id), [key] — n. leafhopper. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: jassid (Thesaurus) jass Jassy Related Content Daily Word Quiz: exemplary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language