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See also: Sid, sid, síd, síð, sid', and sid-

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NounEdit

SID (plural SIDs)

  1. (computing, Microsoft Windows) security identifier
    • 2003, John Mueller, .NET development security solutions
      If the call to this function fails, you can assume the SID was invalid — even if it's a well-known SID.
  2. (computing) Sound Interface Device, a sound chip used in some early computers

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