curfew

noun7

1. •
   Any regulation requiring people to be off the streets and in their homes by a certain time.

   • The city has been reported calm after a curfew was imposed.
2. •
   A regulation requiring loud or disruptive activities such as concerts and sporting events to end by a certain time.
3. •
   (historical) A regulation in feudal Europe by which fires had to be covered up or put out at a certain fixed time in the evening, marked by the ringing of an evening bell.
4. •
   The time when such restriction begins.
5. •
   A signal indicating this time.
6. •
   The evening bell, which continued to be rung in many towns after the regulation itself became obsolete.

   • I have my lodging neere unto a tower, where both evening and morning a very great bell doth chime Ave marie and Cover-few, which jangling doth even make the tower to shake […]. — 2006
7. •
   A fireplace accessory designed to bank a fire by completely covering the embers.