/ Thesaurus / H Synonyms of hardinggrass Find synonyms for: Noun1. hardinggrass, Harding grass, toowomba canary grass, Phalaris aquatica, Phalaris tuberosa, grassusage: perennial grass of Australia and South Africa; introduced in North America as forage grassWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language