Roman Church vs cardinal

Roman Church and cardinal both are nouns.

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

Roman Church (noun)	cardinal (noun)
the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy	crested thick-billed North American finch having bright red plumage in the male
	a variable color averaging a vivid red
	(Roman Catholic Church) one of a group of more than 100 prominent bishops in the Sacred College who advise the Pope and elect new Popes
	the number of elements in a mathematical set; denotes a quantity but not the order

Roman Church (adjective)	cardinal (adjective)
	being or denoting a numerical quantity but not order
	serving as an essential component