shutrule

noun
UK /ˈʃʌt.ruːl/
US /ˈʃʌt.ruːl/

A shutrule is a special rule that says when something must close.

The shutrule says the park gates close at sunset.


OTHER MEANINGS

2. A rule that tells people to stop talking or making noise.

During the test, the shutrule kept everyone quiet.

3. A made-up rule in a game that ends a turn or round.

Our new shutrule means you lose a point if you drop the ball.

4. A rule that closes a shop or business for the day.

The café's shutrule is posted on the door: closed at six.