Church of Rome vs Saint Athanasius

Church of Rome and Saint Athanasius both are nouns.

Word	Noun	Adjective	Verb	Adverb
Church of Rome	Yes	No	No	No
Saint Athanasius	Yes	No	No	No

Church of Rome (noun)	Saint Athanasius (noun)
the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy	(Roman Catholic Church) Greek patriarch of Alexandria who championed Christian orthodoxy against Arianism; a church father, saint, and Doctor of the Church (293-373)