keeping vs storage

keeping and storage both are nouns.

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

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

Other hyponyms of keeping include withholding.

keeping (noun)	storage (noun)
the responsibility of a guardian or keeper	the commercial enterprise of storing goods and materials
conformity or harmony	the act of storing something
the act of retaining 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