Breadcrumb Home > Thesaurus > B Synonyms of boo Find synonyms for: Noun 1. boo, hoot, Bronx cheer, hiss, raspberry, razzing, razz, snort, bird, cry, outcry, call, yell, shout, vociferation usage: a cry or noise made to express displeasure or contempt Verb 1. boo, hiss, condemn usage: show displeasure, as after a performance or speech WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of boo (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: soign Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language