roast vs cook

roast and cook both are nouns.

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

As verbs, cook is a hypernym of roast; that is, cook is a word with a broader meaning than roast:

roast (noun)	cook (noun)
negative criticism	someone who cooks food
a piece of meat roasted or for roasting and of a size for slicing into more than one portion

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

roast (verb)	cook (verb)
cook with dry heat, usually in an oven	transform and make suitable for consumption by heating
subject to laughter or ridicule	transform by heating
	prepare for eating by applying heat
	prepare a hot meal
	tamper, with the purpose of deception