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Entry 3 senses · 2 variants Webster, 1913

Turnkey

/(tûrn"kē`)/ · Turn·key · IPA /ˈtɜː(ɹ)nˌkiː/
01 n. A person who has charge of the keys of a prison, for opening and fastening the doors; a warder.
pl. Turnkeys ((tûr"kēz`))
  1. 1.
    A person who has charge of the keys of a prison, for opening and fastening the doors; a warder.
  2. 2.
    An instrument with a hinged claw, -- used for extracting teeth with a twist.(Dentistry)
02 a. Of or pertaining to a building, complex device, system, or industrial installation which is sold by a contractor only after it is ready for…
  1. 1.
    Of or pertaining to a building, complex device, system, or industrial installation which is sold by a contractor only after it is ready for immediate occupation or use; fully functional and ready for use; -- used of complex systems of a type which often require preparation or installation by the user before being capable of functioning as intended; as, a turnkey ethylene production plant; a turnkey apartment building.