警備

けいび

defense, guard, policing, security

JLPT N2

Character Breakdown

Meaning and Usage

The word "警備" (けいび) refers to security, guarding, or policing activities. It is commonly used in contexts involving protection of places, events, or people. This term often appears in formal or official settings such as airports, public events, or buildings.

Common Collocations

  • 警備員 (けいびいん): security guard, a person who performs security duties.
  • 警備を強化する: to strengthen security, often used when increasing safety measures.
  • 警備が厳重だ: security is strict or tight, describing high-level protection.

Usage Notes

When using 警備, it usually implies organized or official security rather than casual watching. It is often associated with professional personnel or systems designed to prevent unauthorized access or danger. Avoid confusing 警備 with simple "watching" or "looking after" which might use 見守る or 監視.

Register and Politeness

This word is neutral and appropriate in both spoken and written Japanese, especially in news reports, official announcements, and workplace conversations about safety.

Common Mistake

Learners sometimes confuse 警備 with 警察 (police). 警備 refers to security or guarding, which can be done by private security staff, while 警察 specifically means the police force.

Example Sentences

くうこうではげんじゅうなけいびがおこなわれている。

Strict security is being carried out at the airport.

けいびいんがいりぐちでみぶんしょうをチェックしている。

The security guard is checking IDs at the entrance.

いべんとのけいびをきょうかするひつようがある。

There is a need to strengthen security for the event.