cheap-jack vs trafficker

cheap-jack and trafficker both are nouns.

Word	Noun	Adjective	Verb	Adverb
cheap-jack	Yes	No	No	No
trafficker	Yes	No	No	No

As nouns, trafficker is a hypernym of cheap-jack; that is, trafficker is a word with a broader meaning than cheap-jack:

Other hypernyms of cheap-jack include marketer, seller, vender, vendor.

cheap-jack (noun)	trafficker (noun)
a seller of shoddy goods	someone who promotes or exchanges goods or services for money