noun
private orders; secret instructions
Refers to orders or instructions given privately within an organization, often not disclosed to outsiders. Common in military, corporate, or governmental contexts.
内訓により、社員は新方針を外部に漏らさないよう指示された。
By internal directive, employees were instructed not to disclose the new policy to outsiders.
軍の内訓は機密扱いとされている。
The military's secret orders are treated as confidential.