cook vs steam

cook and steam both are nouns.

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

As verbs, steam is a hyponym of cook; that is, steam is a word with a more specific, narrower meaning than cook:

cook (noun)	steam (noun)
someone who cooks food	water at boiling temperature diffused in the atmosphere

cook (verb)	steam (verb)
transform and make suitable for consumption by heating	cook something by letting steam pass over it
transform by heating	clean by means of steaming
prepare for eating by applying heat	get very agitated or angry
prepare a hot meal	rise as vapor
tamper, with the purpose of deception	travel by means of steam power
	emit steam