Noun

1. an iron collar formerly used in Spain to execute people by strangulation
   • 2004: Chris Wallace, Character: Profiles in Presidential Courage

     The Spanish had responded to the insurgency with characteristic brutality. They gave rebels the "usual four shots in the back" or the garrote - an iron collar tightened around the victim's neck with a screw until he was strangled to death.

2. something, especially a cord or wire, used for strangulation

   The mob boss was known for having his enemies executed with a garrotte of piano wire.

Verb

1. to execute by strangulation
2. to kill using a garrote