College of Cardinals vs cardinal

College of Cardinals and cardinal both are nouns.

Word	Noun	Adjective	Verb	Adverb
College of Cardinals	Yes	No	No	No
cardinal	Yes	Yes	No	No

College of Cardinals (noun)	cardinal (noun)
(Roman Catholic Church) the body of all cardinals of the church; elects and advises the pope	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

College of Cardinals (adjective)	cardinal (adjective)
	being or denoting a numerical quantity but not order
	serving as an essential component