storage warehouse vs storage

storage warehouse and storage both are nouns.

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

As nouns, storage is a hypernym of storage warehouse; that is, storage is a word with a broader meaning than storage warehouse:

Other hypernyms of storage warehouse include depot, entrepot, store, storehouse.

storage warehouse (noun)	storage (noun)
a storehouse for goods and merchandise	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