blanch vs cook

blanch is not a noun while cook is a noun.

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

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

blanch (noun)	cook (noun)
	someone who cooks food

blanch (verb)	cook (verb)
turn pale, as if in fear	transform and make suitable for consumption by heating
cook (vegetables) briefly	transform by heating
	prepare for eating by applying heat
	prepare a hot meal
	tamper, with the purpose of deception