Breadcrumb Home > Thesaurus > C Synonyms of cgs Find synonyms for: Noun 1. cgs, cgs system, metric system usage: system of measurement based on centimeters and grams and seconds WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of cgs (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: chimera Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language