recurve vs crook

recurve is not a noun while crook is a noun.

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

As verbs, crook is a hypernym of recurve; that is, crook is a word with a broader meaning than recurve:

Other hypernyms of recurve include curve.

recurve (noun)	crook (noun)
	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

recurve (verb)	crook (verb)
curve or bend (something) back or down	bend or cause to bend