rapist vs crook

rapist and crook both are nouns.

Word	Noun	Adjective	Verb	Adverb
rapist	Yes	No	No	No
crook	Yes	No	Yes	No

As nouns, crook is a hypernym of rapist; that is, crook is a word with a broader meaning than rapist:

rapist: someone who forces another to have sexual intercourse
crook: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of rapist include aggressor, assailant, assaulter, attacker, criminal, felon, malefactor, outlaw.

rapist (noun)	crook (noun)
someone who forces another to have sexual intercourse	a long staff with one end being hook shaped
	someone who has committed a crime or has been legally convicted of a crime
	a circular segment of a curve

rapist (verb)	crook (verb)
	bend or cause to bend