What is the meaning of lights-out?

noun

  • A prescribed bedtime.
  • Military) signal to turn the lights out. (.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). lights-out. Retrieved September 23, 2026, from http://smartdefine.org/lights-out/definitions/1249974
ChicagoWordNet. 2010. "lights-out" http://smartdefine.org/lights-out/definitions/1249974 (accessed September 23, 2026).
HarvardWordNet 2010, lights-out, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/lights-out/definitions/1249974>.
MLAWordNet. "lights-out" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/lights-out/definitions/1249974>