bifocals vs plural

bifocals and plural both are nouns.

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

bifocals (noun)	plural (noun)
(plural) eyeglasses having two focal lengths, one for near vision and the other for far vision	the form of a word that is used to denote more than one

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