cook vs pressure-cook

cook is a noun but pressure-cook is not a noun.

Word	Noun	Adjective	Verb	Adverb
cook	Yes	No	Yes	No
pressure-cook	No	No	Yes	No

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

cook (noun)	pressure-cook (noun)
someone who cooks food

cook (verb)	pressure-cook (verb)
transform and make suitable for consumption by heating	cook in a pressure cooker
transform by heating
prepare for eating by applying heat
prepare a hot meal
tamper, with the purpose of deception