singular vs plural

singular and plural both are nouns.

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

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

singular (adjective)	plural (adjective)
grammatical number category referring to a single item or unit	grammatical number category referring to two or more items or units
composed of one member, set, or kind	composed of more than one member, set, or kind
unusual or striking
being a single and separate person or thing
the single one of its kind
beyond or deviating from the usual or expected