rings vs plural

rings and plural both are nouns.

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

rings (noun)	plural (noun)
gymnastic apparatus consisting of a pair of heavy metal circles (usually covered with leather) suspended by ropes; used for gymnastic exercises	the form of a word that is used to denote more than one

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