let the cat out of the bag vs spill the beans

let the cat out of the bag and spill the beans both are verbs.

Word	Noun	Adjective	Verb	Adverb
let the cat out of the bag	No	No	Yes	No
spill the beans	No	No	Yes	No

As verbs, let the cat out of the bag and spill the beans are synonyms defined as:

let the cat out of the bag and spill the beans: divulge confidential information or secrets

Other synonyms of let the cat out of the bag include babble, babble out, blab, blab out, peach, sing, talk, tattle.

let the cat out of the bag (verb)	spill the beans (verb)
divulge confidential information or secrets	divulge confidential information or secrets