liqueur vs alcohol

liqueur and alcohol both are nouns.

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

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

Other hypernyms of liqueur include alcoholic beverage, alcoholic drink, inebriant, intoxicant.

liqueur (noun)	alcohol (noun)
strong highly flavored sweet liquor usually drunk after a meal	a liquor or brew containing alcohol as the active agent
	any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation