Definition of "necklace"

noun:
- An article of jewelry that is worn around the neck, most often made of a string of precious metal, pearls, gems, beads or shells, and sometimes having a pendant attached.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
- Anything resembling a necklace in shape.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
- A method of informal execution in which a rubber tyre is filled with petrol, placed around the victim's chest and arms, and set on fire.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
verb:
- To informally execute by setting on fire a petrol-filled rubber tyre which has been put around the bound victim's neck.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License