/ Thesaurus / X Synonyms of xanthorroea Find synonyms for: Noun1. Xanthorroea, genus Xanthorroea, liliid monocot genususage: grass trees; sometimes placed in family XanthorrhoeaceaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language