plural vs denim

plural and denim both are nouns.

Word	Noun	Adjective	Verb	Adverb
plural	Yes	Yes	No	No
denim	Yes	No	No	No

plural (noun)	denim (noun)
the form of a word that is used to denote more than one	a coarse durable twill-weave cotton fabric
	(used in the plural) close-fitting trousers of heavy denim for manual work or casual wear

plural (adjective)	denim (adjective)
grammatical number category referring to two or more items or units
composed of more than one member, set, or kind