/ Thesaurus / B Synonyms of boston bull Find synonyms for: Noun1. Boston bull, Boston terrier, terrierusage: small pug-faced American terrier breed having a smooth brindle or black coat with white markingsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language