/ Thesaurus / O Synonyms of ohio buckeye Find synonyms for: Noun1. Ohio buckeye, horse chestnut, buckeye, Aesculus hippocastanumusage: a buckeye with scaly grey bark that is found in the central United StatesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language