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definitions

running light

noun

any of various lights required to be displayed by a vessel or aircraft operating between sunset and sunrise.

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Nearby words

  1. running gear,
  2. running hand,
  3. running head,
  4. running joke,
  5. running knot,
  6. running martingale,
  7. running mate,
  8. running myrtle,
  9. running on empty,
  10. running pine

Origin of running light

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for running light

running light

noun

nautical one of several white, red, or green lights displayed by vessels operating at night
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012