Usage patterns 大晦日おおみそか に 〈 事こと〉 〉 をする to do something on New Year's Eve
I ate toshikoshi soba on New Year's Eve.
大晦日おおみそか の 夜よる the night of New Year's Eve
On the night of New Year's Eve, people ring the temple bell.
大晦日おおみそか を 過す ごす to spend New Year's Eve (a certain way)
I spent New Year's Eve quietly with my family.
Opposites 元旦 is the morning of New Year's Day, the day right after 大晦日 ends.
元日 is New Year's Day (January 1st), while 大晦日 is the last day of the year (December 31st) that precedes it.
Don't confuse with 年越し describes the act of crossing over into the new year (as in 年越しそば ), while 大晦日 names the specific date, December 31st.
大晦日 specifically means 'New Year's Eve,' the single last day of the year, whereas 年の暮れ refers more broadly to the closing days or weeks leading up to it.
大晦日 shares the kanji 晦日 with 三十日 but is a fixed term meaning specifically December 31 (New Year's Eve), not the last day of any month.
Written forms 大おお 晦日みそか Usage 90%
Standard kanji spelling; the most common written form.
大おお みそか Usage 10%
Mixed kana-kanji spelling; often used in casual writing or when the kanji 晦 is considered difficult.
おおみそか Usage 1%
Etymology Composed of 大 (big) and 晦日 (last day of the month). Originally referred to the last day of any month, but now exclusively means the last day of the year.
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