cooked vs roast

cooked is not a noun while roast is a noun.

Word	Noun	Adjective	Verb	Adverb
cooked	No	Yes	No	No
roast	Yes	Yes	Yes	No

cooked (noun)	roast (noun)
	negative criticism
	a piece of meat roasted or for roasting and of a size for slicing into more than one portion

cooked (adjective)	roast (adjective)
having been prepared for eating by the application of heat	(meat) cooked by dry heat in an oven

cooked (verb)	roast (verb)
	cook with dry heat, usually in an oven
	subject to laughter or ridicule