max vs GHB

max and GHB both are nouns.

Word	Noun	Adjective	Verb	Adverb
max	Yes	No	No	No
GHB	Yes	No	No	No

As nouns, GHB is a hypernym of max; that is, GHB is a word with a broader meaning than max:

max: street names for gamma hydroxybutyrate
GHB: a club drug available in liquid or powder form is taken orally (frequently combined with alcohol); used to incapacitate individuals for the commission of sexual assault and rape

Other hypernyms of max include gamma hydroxybutyrate.

max (noun)	GHB (noun)
street names for gamma hydroxybutyrate	a club drug available in liquid or powder form is taken orally (frequently combined with alcohol); used to incapacitate individuals for the commission of sexual assault and rape