buttery vs teahouse

buttery and teahouse both are nouns.

Word	Noun	Adjective	Verb	Adverb
buttery	Yes	Yes	No	No
teahouse	Yes	No	No	No

As nouns, teahouse is a hypernym of buttery; that is, teahouse is a word with a broader meaning than buttery:

buttery: a teashop where students in British universities can purchase light meals
teahouse: a restaurant where tea and light meals are available

Other hypernyms of buttery include tea parlor, tea parlour, tearoom, teashop.

buttery (noun)	teahouse (noun)
a teashop where students in British universities can purchase light meals	a restaurant where tea and light meals are available
a small storeroom for storing foods or wines

buttery (adjective)	teahouse (adjective)
resembling or containing or spread with butter
unpleasantly and excessively suave or ingratiating in manner or speech