(informal) An emergency switch or button used to abort a process in case of failure.

a switch or button on an electrical appliance that turns it on or off

(economics) A form of countertrade by which one company sells to another its obligation to make a purchase in a given country.

(cinematography) A technique in which a stunt double is seamlessly replaced with an actor in a single shot.

(Britain, electricity) A light switch with two pairs of two terminals, which can be switched between straight-through or swapped wiring. Typically used as part of a circuit to control a light or other device from three or more locations. (US): four-way switch.

(firearms) A device which modifies the firing system of a Glock pattern pistol, by bypassing the semiautomatic catch, which enables fully automatic fire.

A sensor that detects the level of liquid in a tank and can react to changes in the measurement.

(slang, vulgar, humorous) A tendency to have sudden, unexplained fits of rage.

(US, electricity) A type of light switch that can be arranged in pairs to control lights from two locations, as at either end of a stairway or long hallway; a double-throw switch. (Britain): two-way switch.

A switch that automatically stops a machine or vehicle after a set period of inactivity from the operator.