vanilla liqueur vs liqueur

vanilla liqueur and liqueur both are nouns.

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

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

Other hypernyms of vanilla liqueur include cordial.

vanilla liqueur (noun)	liqueur (noun)
a vanilla-flavored liqueur.	strong highly flavored sweet liquor usually drunk after a meal