秘ひ密みつ結けっ社しゃ

noun

secret society

Refers to an organization whose activities, membership, or existence are kept hidden from the public or authorities.

• 彼かれは秘ひ密みつ結けっ社しゃの一いち員いんだと言いわれている。

  He is said to be a member of a secret society.

• その秘ひ密みつ結けっ社しゃは何なん世せい紀きも前まえから存そん在ざいしているらしい。

  That secret society seems to have existed for centuries.