the time after sunrise and before sunset while it is light outside; "the dawn turned night into day"; "it is easier to make the repairs in the daytime" 日の出から日没までの屋外が明るい時間。
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【下位】 the latter part of the day (the period of decreasing daylight from late afternoon until nightfall); "he enjoyed the evening light across the lake" 1日の後半（午後遅く日が落ちてから夜まで）。
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【上位】 (physics) electromagnetic radiation that can produce a visual sensation; "the light was filtered through a soft glass window" 視覚の感覚を生じさせる電磁放射。
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