granary vs storage

granary and storage both are nouns.

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

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

Other hypernyms of granary include depot, entrepot, store, storehouse.

granary (noun)	storage (noun)
a storehouse for threshed grain or animal feed	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