gasworks vs plural

gasworks and plural both are nouns.

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

gasworks (noun)	plural (noun)
the workplace where coal gas is manufactured	the form of a word that is used to denote more than one

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