站在線上：慶祝的時節
鏡頭對準交界的那一刻，以及圍著它的那幾天。
noun · A2
The time when people celebrate the start of a new year — the last evening of the old year, the first day of the new one, and often the days around them.
新年（跨年時節）
核心畫面
The line between one year and the next. Stand right on the line and you get the party; step over it and look back at the weeks just after it, and you get the time when new things are supposed to start.
New Year 可以想成一年和下一年之間的那條線。站在線上的那一刻，是煙火、倒數和「新年快樂」。往前跨過去、回頭看…更多收起
New Year 可以想成一年和下一年之間的那條線。站在線上的那一刻，是煙火、倒數和「新年快樂」。往前跨過去、回頭看剛開始的那幾個星期，就是「年後」——事情要重新排、計畫要重新開始的那段時間。同一個詞，差別只在鏡頭對準那一刻，還是對準那一段。From the word’s history
The source simply gives new + year. The two everyday uses fall straight out of that: the moment the year turns, and the year that has just turned.
來源資料只說它是 new（新的）加 year（年）。兩個日常用法其實就從字面長出來：一個是「年剛翻過去的那一刻」，一個是「剛翻過去的那一年」。
Wiktionary entries for New Year / new year, packet evidence kaikki:3f6f69a190036ae4:482539305 ("From new + year.") and kaikki:3f6f69a190036ae4:1586709089.
Two branches
跨過線之後：年初那幾週
同一條線，鏡頭往後拉：不再看那一刻的煙火，而是看剛開始的那一年的頭幾個星期。
noun · A2
In the expression the new year: the first few weeks of the year that is starting, talked about while the old year is still running.
開年後的頭幾週