cooking vs roast

cooking and roast both are nouns.

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

cooking (noun)	roast (noun)
the act of preparing something (as food) by the application of heat	negative criticism
	a piece of meat roasted or for roasting and of a size for slicing into more than one portion

cooking (adjective)	roast (adjective)
	(meat) cooked by dry heat in an oven

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