Breadcrumb Home > Thesaurus > I Cite Synonyms of ion Find synonyms for: Noun1. ion, particle, subatomic particleusage: a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electronsWordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.Definition and meaning of ion (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: nosegay Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language