cocaine vs coke

cocaine and coke both are nouns.

Word	Noun	Adjective	Verb	Adverb
cocaine	Yes	No	No	No
coke	Yes	No	Yes	No

As nouns, coke is a hyponym of cocaine; that is, coke is a word with a more specific, narrower meaning than cocaine:

cocaine: a narcotic (alkaloid) extracted from coca leaves; used as a surface anesthetic or taken for pleasure; can become powerfully addictive
coke: street names for cocaine

Other hyponyms of cocaine include basuco, blow, C, nose candy, snow, crack, crack cocaine, tornado.

cocaine (noun)	coke (noun)
a narcotic (alkaloid) extracted from coca leaves; used as a surface anesthetic or taken for pleasure; can become powerfully addictive	street names for cocaine
	carbon fuel produced by distillation of coal

cocaine (verb)	coke (verb)
	become coke