/ Thesaurus / W Synonyms of water chestnut 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 fruits2. water chestnut, Chinese water chestnut, Eleocharis dulcis, spike rushusage: Chinese sedge yielding edible bulb-shaped tubers3. water chestnut, tuberusage: edible bulbous tuber of a Chinese marsh plantWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language