peddler vs crook

peddler and crook both are nouns.

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

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

peddler: an unlicensed dealer in illegal drugs
crook: someone who has committed a crime or has been legally convicted of a crime

Other hypernyms of peddler include criminal, felon, malefactor, outlaw, dealer.

peddler (noun)	crook (noun)
someone who travels about selling his wares (as on the streets or at carnivals)	a long staff with one end being hook shaped
an unlicensed dealer in illegal drugs	someone who has committed a crime or has been legally convicted of a crime
	a circular segment of a curve

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