trunks vs plural

trunks and plural both are nouns.

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

trunks (noun)	plural (noun)
(used in the plural) trousers that end at or above the knee	the form of a word that is used to denote more than one

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