light-year definition

  • noun:
    • The distance that light travels in a vacuum in one year, approximately 9.46 trillion (9.46 × 1012) kilometers or 5.88 trillion (5.88 × 1012) miles.
    • casual quite a distance. Often found in the plural: a tiny town light-years away from the action regarding the capital.
    • alternate spelling of light-year.
    • the length traversed by light in one 12 months; the unit generally utilized in expressing the distances for the fixed stars: for instance, the exact distance of a Centauri is light-years.
    • the length that light journeys in a vacuum in one year; 5.88 trillion kilometers or 9.46 trillion kilometers
    • the exact distance that light journeys in a vacuum in 12 months; 5.88 trillion kilometers or 9.46 trillion kilometers
  • others:
    • The distance over which light can travel in a year's amount of time in a vacuum, 5.88 trillion kilometers (9.46 trillion kilometers); -- used as a unit in expressing stellar distances. Its more than 63,000 times as great given that distance from earth into sunlight. The star nearest towards the earth's sunshine is about 4 light years remote.
    • a very big difference; -- utilized figuratively to convey great variations (of length, high quality, time) in comparisons.

Related Sources

  • Sentence for "light-year"
    • Because the distances in space are…
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  • Hypernym for "light-year"
  • Equivalent for "light-year"
  • Same Context for "light-year"
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