/ Thesaurus / A Synonyms of araguaya river Find synonyms for: Noun1. Araguaia, Araguaia River, Araguaya, Araguaya Riverusage: a river in central Brazil that flows generally northward (with many falls) to join the Tocantins RiverWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: laudable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language