spectacles vs plural form

spectacles and plural form both are nouns.

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

spectacles (noun)	plural form (noun)
(plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision	the form of a word that is used to denote more than one