/ Thesaurus / I Synonyms of ionise Find synonyms for: Verb1. ionize, ionise, changeusage: become converted into ions2. ionize, ionise, change state, turnusage: convert into ionsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language