/ Thesaurus / W Synonyms of wabash river Find synonyms for: Noun1. Wabash, Wabash Riverusage: a tributary of the Ohio River that rises in western Ohio and flows southwestward across IndianaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language