Main Entry: turn in

Function: verb

Date: 1535

intransitive verb

1 : to make an entrance by turning from a road or path
2 : to go to bed <turned in early>transitive verb 1 : to deliver up : hand over <turned in his badge and quit>
2 a : to inform on : betray b : to deliver to an authority <urged the wanted man to turn himself in>
3 : to acquit oneself of : put on, produce <turned in a good performance>