necklace

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.

Anything resembling a necklace in shape.

a necklace of coral islands

A device used in necklacing (an informal execution); a rubber tyre that is filled with petrol. It is placed around the victim's chest and arms, and set on fire.

Necklacing on Wikipedia.Wikipedia

Seven people have been arrested in connection with Saturday's "necklace" murder of three men in the Tjokville informal settlement at Jeffrey's Bay.

To informally execute by necklacing; by setting on fire a petrol-filled rubber tyre which has been put around the bound victim's neck.

Frustrated residents tied the hands of two suspected criminals, put tyres around their necks and then set them alight. In a manifestation of growing disillusionment with the criminal justice system, residents of Bramfischerville, west of Johannesburg, on Tuesday abducted and necklaced two suspected burglars.

2002 Buthelezi: A Biography by Ben Temkin Inkatha members have been hacked to death and necklaced, and their houses have been destroyed