Roman Catholic Church vs Little Office

Roman Catholic Church and Little Office both are nouns.

Word	Noun	Adjective	Verb	Adverb
Roman Catholic Church	Yes	No	No	No
Little Office	Yes	No	No	No

Roman Catholic Church (noun)	Little Office (noun)
the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy	a Roman Catholic office honoring the Virgin Mary; similar to but shorter than the Divine Office