firework vs plural

firework and plural both are nouns.

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

firework (noun)	plural (noun)
(usually plural) a device with an explosive that burns at a low rate and with colored flames; can be used to illuminate areas or send signals etc.	the form of a word that is used to denote more than one

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