inform

1. Origins, structure, and basic meaning

• Structure: 告 means informing someone; its on-reading is こく.
• Basic usage: 報告, read ほうこく, means report; 警告, read けいこく, means warning.

2. Common pitfalls and similar expressions

• Reporting results and drawing attention to a problem
  • 調査の結果を報告 means conveying the results of an investigation.
  • 警告 draws attention to a problem and urges caution, as with a low-capacity message on a screen or a warning not to approach a dangerous place.