/ Thesaurus / B Synonyms of billy sunday Find synonyms for: Noun1. Sunday, Billy Sunday, William Ashley Sundayusage: United States evangelist (1862-1935)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language