/ Thesaurus / R Synonyms of republican river Find synonyms for: Noun1. Republican, Republican Riverusage: a tributary of the Kansas River that flows from eastern Colorado eastward through Nebraska and KansasWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language