Breadcrumb Home > Thesaurus > K Synonyms of kg Find synonyms for: Noun 1. kilogram, kg, kilo, metric weight unit, weight unit usage: one thousand grams; the basic unit of mass adopted under the Systeme International d'Unites; "a kilogram is approximately 2.2 pounds" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of kg (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: troglodyte Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language