/ Thesaurus / G Synonyms of genus arethusa Find synonyms for: Noun1. genus Arethusa, monocot genus, liliopsid genususage: genus of bog orchids of North America and JapanWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fortuitous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language