/ Thesaurus / M Synonyms of mouldboard plough Find synonyms for: Noun1. moldboard plow, mouldboard plough, plow, ploughusage: plow that has a moldboardWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language