Breadcrumb Home > Thesaurus > W Synonyms of wild oat grass Find synonyms for: Noun1. wild oat, wild oat grass, Avena fatua, oatusage: common in meadows and pasturesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: temporize Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language