secrecy

The quality or condition of being secret or hidden; concealment.

The practice or habit of keeping secrets.

The state of being secret or concealed; secret, secretive, or clandestine, manner, method, or conduct; concealment from the observation or knowledge of others.

Privacy; retirement; seclusion; solitude.

Ability to keep a secret or secrets; fidelity in keeping secrets; strict silence regarding matters intended to be kept secret.