/ Thesaurus / I Synonyms of iguassu falls Find synonyms for: Noun1. Iguazu, Iguazu Falls, Iguassu, Iguassu Falls, Victoria Fallsusage: a large waterfall on the border between Argentina and BrazilWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language