water wings vs plural

water wings and plural both are nouns.

Word	Noun	Adjective	Verb	Adverb
water wings	Yes	No	No	No
plural	Yes	Yes	No	No

water wings (noun)	plural (noun)
a life preserver consisting of a connected pair of inflatable bags that fit under a person's arms and provide buoyancy; used by children learning to swim	the form of a word that is used to denote more than one

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