passkey

From pass +‎ key.

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passkey (plural passkeys)

1. A key, especially in a hotel, that allows someone in authority to open any door.

   Synonyms: master key, (obsolete) passe-partout

   • 1925 July – 1926 May, A[rthur] Conan Doyle, “(please specify the chapter number)”, in The Land of Mist (eBook no. 0601351h.html), Australia: Project Gutenberg Australia, published April 2019:

     With the universal pass-key of imagination we open the dingy door, pass down a dark passage and up a narrow stair.

   • 1974, Lawrence Durrell, Monsieur, Faber & Faber 1992, p. 23:

     Jourdain stood by with a quiet sad smile, holding his passkey in his hand, and giving me time to take it all in.

2. A key for entering a house or other building.
   • 1917, Hearst's (volume 32, page 293)

     Now, Balmy, here's the passkey to that house. The windows are wired, but the front door isn't. Get inside that door as quietly as you can, and find out as much as you can.

3. (computing) A password.
   • 2007, Harold F Tipton, Micki Krause, Information Security Management Handbook

     The router then generates a random numeric passkey and delivers it to the user […]

• skeleton key