/ Thesaurus / O Synonyms of old bulgarian Find synonyms for: Noun1. Old Church Slavonic, Old Church Slavic, Church Slavic, Old Bulgarian, Slavic, Slavic language, Slavonic, Slavonic languageusage: the Slavic language into which the Bible was translated in the 9th centuryWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language