/ Thesaurus / R Synonyms of race horse Find synonyms for: Noun1. racehorse, race horse, bangtail, horse, Equus caballususage: a horse bred for racingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language