/ Thesaurus / A Synonyms of arauca Find synonyms for: Noun1. Araucausage: a river that rises in northern Colombia and flows generally eastward to the Orinoco in central VenezuelaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language