confidant vs repository

confidant and repository both are nouns.

Word	Noun	Adjective	Verb	Adverb
confidant	Yes	No	No	No
repository	Yes	No	No	No

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

Other hyponyms of confidant include confidante, secretary.

confidant (noun)	repository (noun)
someone to whom private matters are confided	a facility where things can be deposited for storage or safekeeping
	a burial vault (usually for some famous person)
	a person to whom a secret is entrusted