turn in:
- to deliver (Example: The police officer was ordered to turn in his badge after he was caught taking a bribe.)
- to give over
- (Informal) to go to bed (Example: He turned in at half past ten because he has an early start tomorrow morning.
- to deliver (Example: The police officer was ordered to turn in his badge after he was caught taking a bribe.)
- to give over
- (Informal) to go to bed (Example: He turned in at half past ten because he has an early start tomorrow morning.