/ Thesaurus / T Synonyms of tagus river Find synonyms for: Noun1. Tagus, Tagus Riverusage: a European river; flows into the North AtlanticWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language