alphabet vs plural

alphabet and plural both are nouns.

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

alphabet (noun)	plural (noun)
the elementary stages of any subject (usually plural)	the form of a word that is used to denote more than one
a character set that includes letters and is used to write a language

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