ignition

Universal Words noun 1 [C,usually sing.] the electrical system of a vehicle that makes the fuel begin to burn to start the engine; the place in a vehicle where you start this system: to turn the ignition on / off * to put the key in the ignition 2 [U] (technical) the action of starting to burn or of making sth burn: The flames spread to all parts of the house within minutes of ignition.