繁忙

1. Origins, structure, and basic meaning

• Structure: 繁忙, read はんぼう, means being very busy with a large amount of work.
• Basic usage: It describes an increased workload at year-end or a department's busy state before a product launch.
  • 年末の繁忙期に備えて、店は臨時の職員を雇った。

2. Common pitfalls and similar expressions

• Register compared with 忙しい
  • 忙しい is an everyday adjective for being busy, while 繁忙 is a noun used in descriptions of work. 繁忙期 means a period of especially heavy workload.