Keep to oneself and Shut one's mouth

Keep to oneself verb - Shun the company of others.

Shut one's mouth and keep to oneself are semantically related. In some cases you can replace phrase "Shut one's mouth" with "Keep to oneself", this phrases are similar.

Shut one's mouth verb - Refrain from divulging sensitive information; keep quiet about confidential information.

Keep to oneself and shut one's mouth are semantically related. Sometimes you can replace phrase "Keep to oneself" with "Shut one's mouth", this phrases are similar.