plural form vs poor

plural form and poor both are nouns.

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

plural form (noun)	poor (noun)
the form of a word that is used to denote more than one	people without possessions or wealth (considered as a group)

plural form (adjective)	poor (adjective)
	having little money or few possessions
	lacking in quality or substances
	characterized by or indicating poverty
	of insufficient quantity to meet a need
	deserving or inciting pity