English version

light year in Astronomy topic

From Longman Dictionary of Contemporary Englishlight 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