1.
busy season, peak business period
The time of year when a business is at its busiest and earns the most revenue.
年末は書き入れ時だ。
Year-end is the peak business season.
クリスマスはケーキ屋の書き入れ時だ。
Christmas is the busy season for cake shops.
書き入れ時に体調を崩すわけにはいかない。
I can't afford to get sick during the busy season.
ETYMOLOGY:
書き入れ refers to writing entries in an account book. The 時 (time/period) when merchants were busiest writing in sales was the peak earning period, hence the meaning.
USAGE:
Used for any business or industry's peak earning period. Often appears in news and business contexts.
COMMON COLLOCATIONS:
- 年末の書き入れ時: year-end busy season
- 夏の書き入れ時: summer busy season
- 書き入れ時を迎える: to enter the busy season