English to English
keep one's mouth shut
![play](https://www.sederet.com/images/speaker.png)
verb (v)
- refrain from divulging sensitive information; keep quiet about confidential information(verb.communication)Antonym:
babble, babble out, blab, blab out, let the cat out of the bag, peach, sing, spill the beans, talk, tattlesource: wordnet30