stillroom vs pantry

stillroom and pantry both are nouns.

Word	Noun	Adjective	Verb	Adverb
stillroom	Yes	No	No	No
pantry	Yes	No	No	No

As nouns, pantry is a hypernym of stillroom; that is, pantry is a word with a broader meaning than stillroom:

stillroom: a pantry or storeroom connected with the kitchen (especially in a large house) for preparing tea and beverages and for storing liquors and preserves and tea etc
pantry: a small storeroom for storing foods or wines

Other hypernyms of stillroom include buttery, larder.

stillroom (noun)	pantry (noun)
a pantry or storeroom connected with the kitchen (especially in a large house) for preparing tea and beverages and for storing liquors and preserves and tea etc	a small storeroom for storing foods or wines