denim vs plural

denim and plural both are nouns.

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

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

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