vigilante
/vɪdʒɪˈleɪnti/ VIG-i-LAYN-tee
Definitions
1. noun
A person who takes the law into their own hands, often by violently enforcing their own idea of justice.
“The neighborhood was plagued by a vigilante who was exacting revenge on suspected thieves.”
2. verb
To act as a vigilante, taking the law into one’s own hands.
“The community has been vigilant and has started to take measures to protect themselves, effectively vigilante-ing the area.”
3. adjective
Relating to or characteristic of a vigilante or their actions.
“The vigilante-style justice being meted out in the town has raised concerns about the rule of law.”