turn in

US /tɜːrn ɪn/

UK /tɜːrn ɪn/

1.

to go to bed

:

•

It's getting late, I think I'll turn in.

•

He usually turns in around 10 PM.

:

go to bed retire hit the hay hit the sack

2.

to hand over or submit something, especially to an authority

:

•

Please turn in your assignments by Friday.

•

The suspect decided to turn himself in to the police.

:

submit hand in give in surrender

:

turn turning turn on turn to turn into turn right turn left