still room vs larder

still room and larder both are nouns.

Word	Noun	Adjective	Verb	Adverb
still room	Yes	No	No	No
larder	Yes	No	No	No

As nouns, larder is a hypernym of still room; that is, larder is a word with a broader meaning than still room:

still room: 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
larder: a small storeroom for storing foods or wines

Other hypernyms of still room include buttery, pantry.

still room (noun)	larder (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
	a supply of food especially for a household