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.
By internal directive, employees were instructed not to disclose the new policy to outsiders.
The military's secret orders are treated as confidential.
Compound of 内 (inside, internal) and 訓 (instruction, teaching). The exact historical derivation is uncertain, but the term has been used in bureaucratic and military contexts to denote confidential directives.