/ Thesaurus / C Synonyms of charles ix Find synonyms for: Noun1. Charles, Charles IXusage: King of France from 1560 to 1574 whose reign was dominated by his mother Catherine de Medicis (1550-1574)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language