drug peddler vs drug trafficker

drug peddler and drug trafficker both are nouns.

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

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

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

drug peddler (noun)	drug trafficker (noun)
an unlicensed dealer in illegal drugs	an unlicensed dealer in illegal drugs