Breadcrumb Home > Thesaurus > G Synonyms of gregorian Find synonyms for: Adjective 1. Gregorian usage: of or relating to Pope Gregory I or to the plainsong chants of the Roman Catholic Church 2. Gregorian usage: of or relating to Pope Gregory XIII or the calendar he introduced in 1582 WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of gregorian (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: genome Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language