rabbit ears vs plural

rabbit ears and plural both are nouns.

Word	Noun	Adjective	Verb	Adverb
rabbit ears	Yes	No	No	No
plural	Yes	Yes	No	No

rabbit ears (noun)	plural (noun)
the long ears of a rabbit	the form of a word that is used to denote more than one
an indoor TV antenna; consists of two extendible rods that form a V

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