skivvies vs plural

skivvies and plural both are nouns.

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

skivvies (noun)	plural (noun)
(used in the plural) men's underwear consisting of cotton undershirt and underpants	the form of a word that is used to denote more than one

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