改善

1. Origins, structure, and basic meaning

• Structure: 改善 is read as かいぜん and means “improvement”.
• Basic usage: It describes improving sign placement and collecting ideas for a better work environment.

2. Common pitfalls and similar expressions

• 配置を改善する / 環境の改善
  • Use 配置を改善する for the act and 環境の改善 for improvement as an issue or process.