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

Kids will have a blast using the steering wheel’s working horn, a clicking ignition switch, and more interactive features. —Katrina Cossey, Parents, 7 May 2024

In responses to questions from The Times, the Sheriff’s Department said its decision to take away batteries stemmed from the outcome of arson investigations that determined batteries had been the ignition point for recent fires on the third floor and elsewhere in the jail. —Keri Blakinger, Los Angeles Times, 2 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