1. [informal] Prepare for sleep
   "I usually turn in at midnight";
   - go to bed, bed, kip down [informal], hit the hay [informal], hit the sack [informal], sack out [N. Amer, informal], go to sleep, retire
    
2. To surrender someone or something to another
   "turn in the money";
   - hand over, deliver, render
    
3. [informal] Carry out (performances)
   "They turned in a splendid effort"; "They turned in top jobs for the second straight game";
   - put on
    
4. Make an entrance by turning from a road
   "Turn in after you see the gate"

Derived forms: turning in, turns in, turned in

See also: hand

Type of: come in, create, enter, get in, get into, give, go, go in, go into, hand, locomote, make, move, move into, pass, pass on, reach, travel, turn over