/ Thesaurus / B Synonyms of bitter dock Find synonyms for: Noun1. bitter dock, broad-leaved dock, yellow dock, Rumex obtusifolius, dock, sorrel, sour grassusage: European dock with broad obtuse leaves and bitter rootstock common as a weed in North AmericaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: respite Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language