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Readings of “一日

  • Today, I will talk about the readings of the Japanese word “一日”.


    “一” means “one”, “日” means “day”, but “一日” has two meanings: “one day (24 hours)” and “the first day of a month.”

    When you want to mean “one day,” you have to read “一日” as “ichi-nichi”.

    On the other hand, if you want to mean “the first day of a month,” you have to read “一日” as “tsuitachi”.

    The reason of the irregular readings is to make it easier to distinguish between these two meanings.

    Also, the etymology of the reading “tsuitachi” comes from “月立ち(tukitachi)”, which implies the beginning of a month.

    Original sentence