An organization whose members are sworn to secrecy about its activities.
- ‘It is not a secret society, as all members are free to acknowledge their membership and will do so in response to inquiries for respectable reasons.’
- ‘In central Africa they signal the attainment of rank by the community's elders and by initiated members of secret societies.’
- ‘According to the report, members of the secret societies and organizations expressed their opposition to Lien's visit to China.’
- ‘He had crossed the Ogboni, a secret society whose members include many in power.’
- ‘In 1868 Bakunin founded a front organization for his secret society, the Alliance of Social Democracy, in Geneva.’
- ‘Do all the books questioning the activities of secret societies published in recent years not give some justification for the register?’