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Verb: turn in
  1. Make an entrance by turning from a road
    "Turn in after you see the gate"
  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. [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

Derived forms: turned in, turning in, turns in

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

Antonym: turn out