Church of Rome, Roman Catholic Church, Roman Church, Western Church, Roman Catholic - the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy

Doctor of the Church, Doctor - (Roman Catholic Church) a title conferred on 33 saints who distinguished themselves through the othodoxy of their theological teaching; "the Doctors of the Church greatly influenced Christian thought down to the late Middle Ages"

saint - a person who has died and has been declared a saint by canonization

theologian, theologiser, theologist, theologizer - someone who is learned in theology or who speculates about theology (especially Christian theology)