/ Dictionary / Index I Indianapolis 500: Meaning and Definition of Find definitions for: Indianapolis 500 Pronunciation: [key] a 500-mile oval-track race for rear-engine cars having particular specifications, held annually in Indianapolis, Ind. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Indianapolis Indian balsam Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language