治安

ちあん

public order, security

JLPT N1

Character Breakdown

Meaning and Usage

"治安" (ちあん) refers to the state of public order and security in a community or area. It is commonly used when discussing safety, crime rates, and police activities.

Common Contexts

You will often hear "治安" in news reports, conversations about neighborhood safety, or when evaluating places to live or visit. It usually implies how safe or dangerous an area is.

Collocations and Patterns

  • 治安が良い: indicates good public security, a safe environment.
  • 治安が悪い: indicates poor public security, a dangerous or unsafe area.
  • 治安維持: maintaining public order, often used in official or formal contexts.
  • 治安対策: measures taken to improve or maintain security.

Register and Nuance

"治安" is a formal noun often used in written and spoken Japanese when discussing societal safety. It is neutral in politeness but tends to appear in news, official statements, and serious conversations rather than casual chat.

Common Mistakes

Learners sometimes confuse "治安" with "安全" (safety). While "安全" refers more broadly to safety in various contexts, "治安" specifically relates to public order and crime-related safety in a community. Use "治安" when talking about crime and police-related safety issues.

Example Sentences

このちいきはちあんがよいので、よるでもあんしんしてあるけます。

The public order in this area is good, so you can walk safely even at night.

けいさつはちあんいじのためにパトロールをきょうかした。

The police strengthened patrols to maintain public order.

ちあんのわるいばしょにはちかづかないほうがいい。

It's better not to go near places with poor public security.