Breadcrumb Home > Thesaurus > C Synonyms of colosseum Find synonyms for: Noun 1. Colosseum, Amphitheatrum Flavium usage: a large amphitheater in Rome whose construction was begun by Vespasian about AD 75 or 80 WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of colosseum (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: terraincognita Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language