What is the meaning of light-year?

noun

  • The distance that light travels in a vacuum in 1 year; 5. 88 trillion miles or 9. 46 trillion kilometers.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). light-year. Retrieved September 20, 2026, from http://smartdefine.org/light-year/definitions/1291472
ChicagoWordNet. 2010. "light-year" http://smartdefine.org/light-year/definitions/1291472 (accessed September 20, 2026).
HarvardWordNet 2010, light-year, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/light-year/definitions/1291472>.
MLAWordNet. "light-year" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/light-year/definitions/1291472>