Breadcrumb Home > Thesaurus > K Cite Synonyms of krypton Find synonyms for: Noun1. krypton, Kr, atomic number 36, chemical element, element, noble gas, inert gas, argononusage: a colorless element that is one of the six inert gasses; occurs in trace amounts in airWordNet 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. January 2021 Current Events: US News The Holocaust (1933–1945) Chinese New Year History, Meaning, and Celebrations Noble Titles and Ranks in a Monarchy The 5 Best Air Purifiers of 2020 Inaugural Trivia Related Content Daily Word Quiz: subrosa Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language