/ Thesaurus / E Synonyms of equus caballus Find synonyms for: Noun1. horse, Equus caballus, equine, equidusage: solid-hoofed herbivorous quadruped domesticated since prehistoric timesWordNet 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