1. Noun, Noun which may take the genitive case particle 'no'

   1.

   prevention of crime

2. Noun, used as a prefix

   2.

   security (device, camera, etc.)

3. Wikipedia definition

   3.

   Crime prevention

Example sentences

• 防犯カメラの映像をよく見たら人がいた。

  If you look at the security camera footage closely, there's a person there.

• 防犯のために登下校時は、名札を外してください。

  In order to prevent crime, please take off your name tag when travelling to and from school.