betray vs disclose

betray and disclose both are verbs.

Word	Noun	Adjective	Verb	Adverb
betray	No	No	Yes	No
disclose	No	No	Yes	No

As verbs, disclose is a hypernym of betray; that is, disclose is a word with a broader meaning than betray:

betray: reveal unintentionally
disclose: make known to the public information that was previously known only to a few people or that was meant to be kept a secret

Other hypernyms of betray include break, bring out, discover, divulge, expose, give away, let on, let out, reveal, uncover, unwrap.

betray (verb)	disclose (verb)
give away information about somebody	make known to the public information that was previously known only to a few people or that was meant to be kept a secret
reveal unintentionally	reveal to view as by removing a cover
cause someone to believe an untruth
disappoint, prove undependable to; abandon, forsake
deliver to an enemy by treachery
be sexually unfaithful to one's partner in marriage