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| lights out |
noun (plural lights outs) |
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| Definition: |
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1. time when people must sleep: the time at night when people, especially those in the armed forces, prison, boarding schools, and other institutions, are supposed to go to sleep
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2. signal sounded at lights out: a bugle call, gong, or other signal sounded at lights out
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adjective |
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| Definition: |
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automated: automated, or controlled from a remote location
  lights-out system administration
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