Noun gregory has 3 senses
- Gregory, Gregory XIII, Ugo Buoncompagni - the pope who sponsored the introduction of the modern calendar (1572-1585)
--1 is a kind of Pope, Catholic Pope, Roman Catholic Pope, Pontiff, Holy Father, Vicar of Christ, Bishop of Rome
- Gregory, Gregory VII, Hildebrand - the pope who fought to establish the supremacy of the pope over the Church and the supremacy of the Church over the state (1020-1085)
--2 is a kind of Pope, Catholic Pope, Roman Catholic Pope, Pontiff, Holy Father, Vicar of Christ, Bishop of Rome
- Gregory, Gregory I, Saint Gregory I, St. Gregory I, Gregory the Great - (Roman Catholic Church) a pope distinguished for his spiritual and temporal leadership; a saint and Doctor of the Church (540?-604)
--3 is a kind of Pope, Catholic Pope, Roman Catholic Pope, Pontiff, Holy Father, Vicar of Christ, Bishop of Rome; saint; Doctor of the Church, Doctor
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