turn in Meaning, Definition & Usage

1. verb make an entrance by turning from a road
   
   • Turn in after you see the gate
2. verb to surrender someone or something to another
   hand over; render; deliver; fork over; fork up; fork out.
   
   • the guard delivered the criminal to the police
   • render up the prisoners
   • render the town to the enemy
   • fork over the money
3. verb carry out (performances)
   put on.
   
   • They turned in a splendid effort
   • They turned in top jobs for the second straight game
4. verb prepare for sleep
   retire; sack out; hit the sack; bed; kip down; go to bed; go to sleep; crawl in; hit the hay.
   
   • I usually turn in at midnight
   • He goes to bed at the crack of dawn

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