pair of tongs vs plural

pair of tongs and plural both are nouns.

Word	Noun	Adjective	Verb	Adverb
pair of tongs	Yes	No	No	No
plural	Yes	Yes	No	No

pair of tongs (noun)	plural (noun)
any of various devices for taking hold of objects; usually have two hinged legs with handles above and pointed hooks below	the form of a word that is used to denote more than one

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