部門

1. Origins, structure, and basic meaning

• Structure: 部門 (ぶもん) is a noun for a division or category within an organization, competition, or product grouping.
• Basic usage: 短編映画部門で賞を受ける marks an award category, while 商品部門ごとに集計する makes product divisions the basis for tabulating sales.

2. Common pitfalls and similar expressions

• Competition category and reporting division
  • 映画部門 is a judging category, whereas 商品部門 is a sales classification. The noun does not mean only a physical room or departmental staff.