knickers vs plural form

knickers and plural form both are nouns.

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

knickers (noun)	plural form (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