/ Thesaurus / C Synonyms of c.e. Find synonyms for: Noun1. cerium, Ce, atomic number 58, metallic element, metalusage: a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth groupAdverb1. CE, C.E., Common Erausage: of the period coinciding with the Christian era; preferred by some writers who are not Christians; "in 200 CE"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language