/ Thesaurus / R Synonyms of rostov on don Find synonyms for: Noun1. Rostov, Rostov on Don, Rostov na Donuusage: a seaport on the Don River near the Sea of Azov in the European part of RussiaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language