/ Thesaurus / S Synonyms of sao francisco Find synonyms for: Noun1. Sao Franciscousage: a river in eastern Brazil flowing into the Atlantic OceanWordNet 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