Breadcrumb Home > Thesaurus > I Synonyms of ion Find synonyms for: Noun 1. ion, particle, subatomic particle usage: a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons WordNet 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. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: rort Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language