Breadcrumb Home > Thesaurus > A Synonyms of amphibia Find synonyms for: Noun 1. amphibia, class Amphibia, class usage: the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of amphibia (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: frisson Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language