drug dealer vs dealer

drug dealer and dealer both are nouns.

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

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

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

drug dealer (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