Capital Punishment

noun a chair used for executing criminals by means of electricity

• The criminal was sentenced to death by means of the electric chair.
• They're gonna fry him in the electric chair.
• He's gonna get zapped in the electric chair.
• Facing the consequences felt like sitting in the electric chair.

noun a machine with a heavy blade sliding vertically in grooves, used for beheading people.

• The guillotine was used for executions during the French Revolution.
• They say the guillotine was a pretty brutal way to go.
• I heard they nicknamed the guillotine 'The Widow Maker'.
• In the world of politics, a scandal can be like a guillotine for a politician's career.