shutorder
nounUK /ˈʃʌtˌɔːdə/
US /ˈʃʌtˌɔːrdər/
A shutorder is a rule that says something must close.
The teacher gave a shutorder for the classroom door at night.
OTHER MEANINGS
2. A command to stop a machine or system from working.
The engineer sent a shutorder to the power plant.
3. An instruction that ends a meeting or event.
The manager gave the shutorder, and everyone went home.
4. A signal that tells a shop to close for the day.
At nine o'clock, the shutorder rang through the store.