Roman Church vs Immaculate Conception of the Virgin Mary

Roman Church and Immaculate Conception of the Virgin Mary both are nouns.

Word	Noun	Adjective	Verb	Adverb
Roman Church	Yes	No	No	No
Immaculate Conception of the Virgin Mary	Yes	No	No	No

Roman Church (noun)	Immaculate Conception of the Virgin Mary (noun)
the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy	(Christianity) the Roman Catholic dogma that God preserved the Virgin Mary from any stain of original sin from the moment she was conceived