Breadcrumb Home > Thesaurus > W Synonyms of water chestnut plant Find synonyms for: Noun1. water chestnut, water chestnut plant, caltrop, aquatic plant, water plant, hydrophyte, hydrophytic plantusage: a plant of the genus Trapa bearing spiny four-pronged edible nutlike fruitsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: sepulture Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language