/ Thesaurus / D Synonyms of don river Find synonyms for: Noun1. Don, Don Riverusage: a European river in southwestern Russia; flows into the Sea of AzovWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language