alcohol vs brew

alcohol and brew both are nouns.

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

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

alcohol: a liquor or brew containing alcohol as the active agent
brew: drink made by steeping and boiling and fermenting rather than distilling

alcohol (noun)	brew (noun)
a liquor or brew containing alcohol as the active agent	drink made by steeping and boiling and fermenting rather than distilling
any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation

alcohol (verb)	brew (verb)
	sit or let sit in boiling water so as to extract the flavor
	prepare by brewing