/ Thesaurus / B Synonyms of black duck Find synonyms for: Noun1. black duck, Anas rubripes, duckusage: a dusky duck of northeastern United States and CanadaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: sumptuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language