turn in

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turn in (third-person singular simple present turns in, present participle turning in, simple past and past participle turned in)

1. (transitive, idiomatic) To submit something; to give.

   Synonyms: hand in; see also Thesaurus:give

   He turned in his paperwork to the main office.

   The actors turned in a formulaic performance.

2. (transitive, idiomatic) To relinquish; give up; to tell on someone to the authorities (especially to turn someone in).

   Synonyms: capitulate, submit, relinquish, give up; see also Thesaurus:surrender

   Synonyms: inform, grass up, snitch; see also Thesaurus:rat out

   The thief finally turned himself in at the police station.

   My nosy next-door neighbor turned me in for building my garage without a permit.

3. (intransitive, idiomatic) To go to bed; to retire to bed.

   Synonyms: hit the sack, retire; see also Thesaurus:go to bed

   I'm tired, so I think I'll turn in early tonight.

   • 1851 November 14, Herman Melville, chapter 3, in Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley, →OCLC, page 27:

     "Landlord," said I, "tell him to stash his tomahawk there, or pipe, or whatever you call it; tell him to stop smoking, in short, and I will turn in with him.

4. (soccer) To convert a goal using a turning motion of the body.
   • 2011 January 18, Daniel Taylor, “Manchester City 4 Leicester City 2”, in Guardian Online‎:

     At that point Leicester were playing with drive and ambition but they were undone by two goals in three minutes. First, Vieira turned in a rebound after the defender Souleymane Bamba had blocked David Silva's shot on the line.

5. (weaving) To reverse the ends of threads and insert them back into the piece being woven so they do not protrude and eventually unravel.

• turn
• turn into
• turn over

• in turn, in-turn, inturn