/ Thesaurus / W Synonyms of western united states Find synonyms for: Noun1. West, western United Statesusage: the region of the United States lying to the west of the Mississippi RiverWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language