depository vs storage

depository and storage both are nouns.

Word	Noun	Adjective	Verb	Adverb
depository	Yes	No	No	No
storage	Yes	No	No	No

As nouns, storage is a hyponym of depository; that is, storage is a word with a more specific, narrower meaning than depository:

depository: a facility where things can be deposited for storage or safekeeping
storage: a depository for goods

depository (noun)	storage (noun)
a facility where things can be deposited for storage or safekeeping	the commercial enterprise of storing goods and materials
	the act of storing something
	depositing in a warehouse
	a depository for goods
	an electronic memory device
	(computer science) the process of storing information in a computer memory or on a magnetic tape or disk