/ Thesaurus / T Synonyms of trapa bicornis Find synonyms for: Noun1. ling, ling ko, Trapa bicornis, water chestnut, water chestnut plant, caltropusage: water chestnut whose spiny fruit has two rather than 4 prongsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language