alcohol vs beverage

alcohol and beverage both are nouns.

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

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

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

alcohol (noun)	beverage (noun)
a liquor or brew containing alcohol as the active agent	any liquid suitable for drinking
any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation