/ Thesaurus / G Synonyms of genus trapa Find synonyms for: Noun1. Trapa, genus Trapa, dicot genus, magnoliopsid genususage: small genus of Eurasian aquatic perennial herbs: water chestnutWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: placate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language