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--- Night
昼夜 chūya day and night 夜 [night]  Ref. 昼 [daytime]
深夜 shin'ya deep | late in the night | midnight   Ref. 深 [deep]
夜は yoruwa at night   Ref. 夜 [night]
夜遅く yoru osoku late at night 遅 [late]  Ref. 夜 [night]
夜半 yahan midnight 半 [half]  Ref. 夜 [night]