intoxicant vs beverage

intoxicant and beverage both are nouns.

Word	Noun	Adjective	Verb	Adverb
intoxicant	Yes	Yes	No	No
beverage	Yes	No	No	No

As nouns, beverage is a hypernym of intoxicant; that is, beverage is a word with a broader meaning than intoxicant:

Other hypernyms of intoxicant include drug of abuse, street drug, drink, drinkable, potable.

intoxicant (noun)	beverage (noun)
a drug that can produce a state of intoxication	any liquid suitable for drinking
a liquor or brew containing alcohol as the active agent

intoxicant (adjective)	beverage (adjective)
causing intoxication