/ Thesaurus / S Synonyms of stable companion Find synonyms for: Noun1. stablemate, stable companion, horse, Equus caballususage: a horse stabled with another or one of several horses owned by the same personWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language