機き密みつ文ぶん書しょ

noun

classified document; confidential document

Refers to official documents whose disclosure is restricted, typically in government, military, or corporate contexts.

• この機き密みつ文ぶん書しょは許きょ可かなく持もち出だせない。

  This classified document cannot be taken out without permission.

• 機き密みつ文ぶん書しょの管かん理りには細さい心しんの注ちゅう意いが必ひつ要ようだ。

  Handling confidential documents requires the utmost care.