spill the beans vs give away

spill the beans and give away both are verbs.

Word	Noun	Adjective	Verb	Adverb
spill the beans	No	No	Yes	No
give away	No	No	Yes	No

As verbs, give away is a hypernym of spill the beans; that is, give away is a word with a broader meaning than spill the beans:

spill the beans: divulge confidential information or secrets
give away: 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 spill the beans include break, bring out, disclose, discover, divulge, expose, let on, let out, reveal, uncover, unwrap.

spill the beans (verb)	give away (verb)
divulge confidential information or secrets	make known to the public information that was previously known only to a few people or that was meant to be kept a secret
	give away information about somebody
	make a gift of
	formally hand over to the bridegroom in marriage; of a bride by her father