plural form vs plural

plural form and plural both are nouns.

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

As nouns, plural form and plural are synonyms defined as:

plural form and plural: the form of a word that is used to denote more than one

plural form (noun)	plural (noun)
the form of a word that is used to denote more than one	the form of a word that is used to denote more than one

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