knickers vs plural

knickers and plural both are nouns.

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

knickers (noun)	plural (noun)
(used in the plural) underpants worn by women	the form of a word that is used to denote more than one
(used in the plural) trousers ending above the knee

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