Nixie
  尼克西管
  nixie
  尼克西 數位管
  Nix·ie n.
  1. See Nix.
  2. Nothing. [Slang]
  3.  U. S. Mail Service A piece of mail matter which cannot be delivered, either because no post office exists at the place to which is it addressed, or because there is no place of the name mentioned in the designated State, Territory, or the like. [Cant]
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