smuggler vs crook

smuggler and crook both are nouns.

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

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

smuggler: someone who imports or exports without paying duties
crook: someone who has committed a crime or has been legally convicted of a crime

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

smuggler (noun)	crook (noun)
someone who imports or exports without paying duties	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

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