meaning of guillotine
1. A machine for beheading a person by one stroke of a heavy ax or blade, which slides in vertical guides, is raised by a cord, and let fall upon the neck of the victim.
2. Any machine or instrument for cutting or shearing, resembling in its action a guillotine.
3. To behead with the guillotine.
4. instrument of execution that consists of a weighted blade between two vertical poles; used for beheading people