/ Dictionary / Index J jemmy: Meaning and Definition of Find definitions for: jem•my Pronunciation: ( jem'ē), [key] — v., n., pl. -mied, -my•ing, -mies. —v.t. jimmy. —n. jimmy. an overcoat. the baked head of a sheep. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: jemmy (Thesaurus) Jemima jen Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language