Light-year - definition, pronunciation, transcription

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Amer.  |ˈlaɪtjiːr|  American pronunciation of the word light-year
Brit.  |ˈlaɪtjɪə|  British pronunciation of the word light-year

noun

- the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers
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