ignition

noun

ig·​ni·​tion ig-ˈni-shən How to pronounce ignition (audio)
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 Today, strong winds will likely impact these wildfires and the potential for new ignitions remains. Harriet Ramos, Fort Worth Star-Telegram, 28 Feb. 2024 The suspects damaged the ignition in an attempt to steal the vehicle, then fled the scene. Anne Gelhaus, The Mercury News, 27 Feb. 2024 The Justice Department alleged that Edison owned, maintained and operated the power lines that caused both ignitions. Brittny Mejia, Los Angeles Times, 26 Feb. 2024 The heat from this ignition starts the decomposition of the sodium azide, which is poisonous, and the generation of nitrogen gas to fill the air bag in seconds. Detroit Free Press, 25 Feb. 2024 That was just one of a string of problems for the maiden launch, which had already been postponed after ignition failures hit two of the rocket’s secondary booster engines. Junko Ogura, CNN, 17 Feb. 2024 If your Kia isn’t eligible for the upgrade, Kia released an ignition cylinder protector, a new hardware modification, in December 2023, according to their statement. Angie Dimichele, Sun Sentinel, 15 Jan. 2024 This might have been a sign that Room C was the ignition point, but there was no fire path; the burning of Room C appeared to be isolated. Jennifer Ouellette, Ars Technica, 31 Dec. 2023 The ember’s ignition point depends on a variety of factors, including the type of wood, the temperature and the humidity. Bradley Duncan, Discover Magazine, 25 Dec. 2023 See More

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.

Word History

First Known Use

1612, in the meaning defined at sense 2

Time Traveler
The first known use of ignition was in 1612

Dictionary Entries Near ignition

Cite this Entry

“Ignition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ignition. Accessed 3 Mar. 2024.

Kids Definition

ignition

noun
ig·​ni·​tion ig-ˈnish-ən How to pronounce ignition (audio)
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

More from Merriam-Webster on ignition

Last Updated: - Updated example sentences
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