Breadcrumb Home > Thesaurus > K Synonyms of krypton Find synonyms for: Noun 1. krypton, Kr, atomic number 36, chemical element, element, noble gas, inert gas, argonon usage: a colorless element that is one of the six inert gasses; occurs in trace amounts in air WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of krypton (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: anomie Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language