internal rules
noun phraseUK /ɪnˈtɜː.nəl ruːlz/
US /ɪnˈtɝː.nəl ruːlz/
Rules that are inside a group or a person and are not written down for everyone to see.
The club has internal rules about how members should treat each other.
RELATED WORDS
OTHER MEANINGS
2. Rules that a company or organization makes for its own members only.
Employees must follow the company's internal rules on email use.
3. Rules that a person follows in their own mind, even if no one else knows them.
Her internal rules stop her from ever telling a lie.
4. The hidden rules that control how a machine or system works inside.
The robot's internal rules decide when it should stop moving.