/ Thesaurus / I Synonyms of iris versicolor Find synonyms for: Noun1. blue flag, Iris versicolor, iris, flag, fleur-de-lis, sword lilyusage: a common iris of the eastern United States having blue or blue-violet flowers; root formerly used medicinallyWordNet 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