death chair, electric chair, hot seat, chair - an instrument of execution by electrocution; resembles a chair; "the murderer was sentenced to die in the chair"

gallous, gallows, gallows tree, gallows-tree, gibbet - instrument of execution consisting of a wooden frame from which condemned persons are executed by hanging

garotte, garrote, garrotte, iron collar - an instrument of execution for execution by strangulation

death chamber, gas chamber - instrument of execution consisting of a sealed chamber into which poison gas is introduced; used to kill people or animals

guillotine - instrument of execution that consists of a weighted blade between two vertical poles; used for beheading people

instrument - a device that requires skill for proper use

scaffold - a platform from which criminals are executed (hanged or beheaded)

stake - instrument of execution consisting of a vertical post that a victim is tied to for burning