arsonist vs crook

arsonist and crook both are nouns.

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

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

arsonist: a criminal who illegally sets fire to property
crook: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of arsonist include criminal, felon, malefactor, outlaw.

arsonist (noun)	crook (noun)
a criminal who illegally sets fire to property	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

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