poor vs pinched

poor is a noun but pinched is not a noun.

Word	Noun	Adjective	Verb	Adverb
poor	Yes	Yes	No	No
pinched	No	Yes	No	No

poor (noun)	pinched (noun)
people without possessions or wealth (considered as a group)

poor (adjective)	pinched (adjective)
having little money or few possessions	as if squeezed uncomfortably tight
lacking in quality or substances	sounding as if the nose were pinched
characterized by or indicating poverty	not having enough money to pay for necessities
of insufficient quantity to meet a need	very thin especially from disease or hunger or cold
deserving or inciting pity