Breadcrumb Home > Thesaurus > B Synonyms of baptism Find synonyms for: Noun 1. baptism, sacrament usage: a Christian sacrament signifying spiritual cleansing and rebirth; "most churches baptize infants but some insist on adult baptism" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of baptism (Dictionary) ✖ Related Content Daily Word Quiz: derogate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language