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
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
See all Example Sentences for ignition 
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
See all Example Sentences for ignition
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ignition.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near ignition
Cite this Entry
“Ignition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ignition. Accessed 29 May. 2024.
Copy CitationKids 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
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