Vigilante

/ˌvɪdʒɪˈlænti/

Synonyms

  • crime fighter
  • justice seeker
  • law enforcer
  • neighborhood watch
  • self-appointed guardian

Slang Meanings

Vigi
The vigi is out tonight, making sure no one messes with the neighborhood.
Jus-keeper
He's become a jus-keeper since the crime wave started.