canonization vs Church of Rome

canonization and Church of Rome both are nouns.

Word	Noun	Adjective	Verb	Adverb
canonization	Yes	No	No	No
Church of Rome	Yes	No	No	No

canonization (noun)	Church of Rome (noun)
(Roman Catholic and Eastern Orthodox Church) the act of admitting a deceased person into the canon of saints	the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy