/ Dictionary / Index H horseplayer: Meaning and Definition of Find definitions for: horse•play•er Pronunciation: (hôrs'plā"ur), [key] — n. a habitual bettor on horse races. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. horseplay horsepower Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language