Last Updated
：2025/12/22
光年
Hiragana
こうねん
Noun
Japanese Meaning
光が真空中を1年間に進む距離を表す、天文学で用いられる距離の単位。
Easy Japanese Meaning
ひかりがいちねんですすむながさのこと。とてもとおいきょりをあらわす。
Chinese (Simplified)
天文学中的长度单位，光在真空中一年行进的距离。 / 比喻极其遥远的距离或巨大的差距。
Sense（1）
(astronomy) a light year
（ canonical ）
（ romanization ）
（ romanization ）
（ hiragana historical ）
（ hiragana ）
Quizzes for review
See correct answer
光年
See correct answer
The distance to this star is 3 light years.
See correct answer
この星までの距離は3光年です。
Japanese - English
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