Roman Church vs Gregory

Roman Church and Gregory both are nouns.

Word	Noun	Adjective	Verb	Adverb
Roman Church	Yes	No	No	No
Gregory	Yes	No	No	No

Roman Church (noun)	Gregory (noun)
the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy	(Roman Catholic Church) an Italian pope distinguished for his spiritual and temporal leadership; a saint and Doctor of the Church (540?-604)
	the Italian pope who fought to establish the supremacy of the pope over the Roman Catholic Church and the supremacy of the church over the state (1020-1085)
	the Italian pope from 1406 to 1415 who worked to end the Great Schism and who retired to make it possible (1327-1417)
	the pope who sponsored the introduction of the modern calendar (1572-1585)
	Italian pope from 1831 to 1846; conservative in politics and theology; worked to propagate Catholicism in England and the United States (1765-1846)
	(Roman Catholic Church) a church father known for his constant fight against perceived heresies; a saint and Doctor of the Church (329-391)