Ignition is the act of starting a reaction.
- In chemistry it refers to heating a material to the point that it spontaneously combusts.
- An ignition system is a method for activating and controlling the combustion of fuel in an internal combustion engine. For a car, it is initiated by turning the car's key in a lock to start the engine.
- Ignition was a hip hop song by R. Kelly.
- Ignition is a humorous racing game for PC published in
1997 by UDS.
