English version

light year

From Longman Dictionary of Contemporary English
Related topics: Measurement, Astronomy
light yearˈlight year noun [countable] πŸ”Š πŸ”Š 1 TMHAthe distance that light travels in one year, about 9,460,000,000,000 kilometres, used for measuring distances between stars πŸ”Š a star 3,000 light years from Earth2 β†’ light years ahead/better etc than something3 β†’ light years ago
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