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light year in French

light year in French is année-lumière.

light year in French

année-lumière
noun
(astronomy) A unit of length (abbreviation ly; equal to just under 10 trillion kilometres (1016 metres)) equal to the distance light travels in one Julian year; used to measure extremely large distances.
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What is "light year" in French?

"light year" in French is année-lumière.

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Translations from WikDict, CC BY-SA · example sentences from Tatoeba, CC BY 2.0 FR.