peaceful

1. Origins, structure, and basic meaning

• Structure: 寧 is associated with peacefulness; its on-reading is ねい.
• Basic usage: 丁寧(ていねい) means polite or careful, while 安寧(あんねい) means peace or tranquility.

2. Common pitfalls and similar expressions

• A polite or careful manner and a peaceful state
  • 丁寧に describes politely giving directions or carefully wrapping plates. It is not limited to courtesy toward people.
  • 国の安寧 means peace in a country, while 心の安寧 means peace of mind. 安寧 describes a peaceful state rather than a manner of performing a task.