drug trafficker vs dealer

drug trafficker and dealer both are nouns.

Word	Noun	Adjective	Verb	Adverb
drug trafficker	Yes	No	No	No
dealer	Yes	No	No	No

As nouns, dealer is a hypernym of drug trafficker; that is, dealer is a word with a broader meaning than drug trafficker:

Other hypernyms of drug trafficker include criminal, crook, felon, malefactor, outlaw.

drug trafficker (noun)	dealer (noun)
an unlicensed dealer in illegal drugs	a firm engaged in trading
	a seller of illicit goods
	the person who distributes the playing cards in a card game
	someone who purchases and maintains an inventory of goods to be sold
	the major party to a financial transaction at a stock exchange; buys and sells for his own account