/ Thesaurus / H Synonyms of helleborus Find synonyms for: Noun1. Helleborus, genus Helleborus, magnoliid dicot genususage: a genus of HelleborusWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: novice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language