/ Dictionary / Index G Gillespie: Meaning and Definition of Find definitions for: Gil•les•pie Pronunciation: (gi-les'pē), [key] — n. (“Dizzy”), 1917–93, U.S. jazz trumpeter and composer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gillespie (Thesaurus) gill cleft Gillett Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language