ignition

noun

ig·​ni·​tion ig-ˈni-shən 

1

a

: the device that is used to ignite the fuel mixture in a gasoline engine

put the key in the ignition

b

: the process or means (such as an electric spark) of igniting a fuel mixture

2

: the act or action of igniting: such as

a

: the starting of a fire

b

: the heating of a plasma to a temperature high enough to sustain nuclear fusion

Examples of ignition in a Sentence

There's a problem with the car's ignition.

Recent Examples on the Web

The software update will remove dependency on the driver seat occupancy switch from the software and only rely on driver seat belt buckle and ignition status to activate the seat belt reminder signals. —Amanda Gerut, Fortune, 31 May 2024

Closing the loophole on Noah’s Law so that drunk drivers given a sentence of probation before judgment can still be required to install an ignition interlock device in their vehicle should help reduce the state’s rising number of traffic deaths. —Baltimore Sun Editorial Board, Baltimore Sun, 9 Apr. 2024

Both are shown leaning over, looking at the ignition while the suspect explains how to start the vehicle and turn it off. —Corin Cesaric, Peoplemag, 20 May 2024

California can already require people convicted multiple times of driving under the influence to install what’s called an ignition interlock device, which requires a breath sample before a car engine can be started. —Kaitlyn Schallhorn, Orange County Register, 13 May 2024

Word History

First Known Use

1612, in the meaning defined at sense 2

Kids Definition

ignition

noun

ig·​ni·​tion ig-ˈnish-ən 

1

: the act of igniting

2

: the process or means (as an electric spark) of igniting a fuel mixture

also : an electrical device for operating an ignition system (as in an automobile)

put the key in the ignition