powder store vs depot

powder store and depot both are nouns.

Word	Noun	Adjective	Verb	Adverb
powder store	Yes	No	No	No
depot	Yes	No	No	No

As nouns, depot is a hypernym of powder store; that is, depot is a word with a broader meaning than powder store:

powder store: a storehouse (as a compartment on a warship) where weapons and ammunition are stored
depot: a depository for goods

Other hypernyms of powder store include entrepot, storage, store, storehouse.

powder store (noun)	depot (noun)
a storehouse (as a compartment on a warship) where weapons and ammunition are stored	station where transport vehicles load or unload passengers or goods
	a depository for goods