brandy glass vs drinking glass

brandy glass and drinking glass both are nouns.

Word	Noun	Adjective	Verb	Adverb
brandy glass	Yes	No	No	No
drinking glass	Yes	No	No	No

As nouns, drinking glass is a hypernym of brandy glass; that is, drinking glass is a word with a broader meaning than brandy glass:

brandy glass: a globular glass with a small top; used for serving brandy
drinking glass: a container made of glass for holding liquids while drinking

Other hypernyms of brandy glass include glass.

brandy glass (noun)	drinking glass (noun)
a globular glass with a small top; used for serving brandy	a container made of glass for holding liquids while drinking