drug dealer vs peddler

drug dealer and peddler both are nouns.

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

As nouns, drug dealer and peddler are synonyms defined as:

Other synonyms of drug dealer include drug peddler, drug trafficker, pusher.

drug dealer (noun)	peddler (noun)
an unlicensed dealer in illegal drugs	someone who travels about selling his wares (as on the streets or at carnivals)
	an unlicensed dealer in illegal drugs