徹底

1. Origins, structure, and basic meaning

• Structure: 徹底 (てってい) is a noun and suru-verb for carrying a policy or action through thoroughly and without omissions.
• Basic usage: The required practice takes を, as in 清掃を徹底する or 安全確認を徹底する.
  • 道具の使用後は清掃を徹底している。 — We clean the tools thoroughly after use.
  • 安全確認を徹底するよう全員に求めた。 — We asked everyone to perform safety checks thoroughly.

2. Common pitfalls and similar expressions

• Degree and implementation
  • 徹底的に adverbially describes doing something thoroughly, while 徹底する emphasizes ensuring that a policy or procedure is carried out fully.