/ Thesaurus / N Synonyms of newfoundland dog Find synonyms for: Noun1. Newfoundland, Newfoundland dog, dog, domestic dog, Canis familiarisusage: a breed of very large heavy dogs with a thick coarse usually black coat; highly intelligent dogs and vigorous swimmers; developed in NewfoundlandWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language