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
Nessel also said the Oxford Center did not use a grounding strap for Thomas, which is essential to protect patients and equipment from static electricity that can serve as an ignition source in the chamber.
—
Elizabeth Chuck, NBC News, 11 Mar. 2025
It's activated by the same button that's used to operate the flashlight, and should reportedly be good for about 100 eight-second ignitions per battery-charge.
—Ben Coxworth, New Atlas, 15 Feb. 2025
According to state police, the vehicle was turned off and the keys were removed from the ignition before Tobin attempted to shift the vehicle into drive and pressed the gas during an escape attempt.
—Justin Muszynski, Hartford Courant, 10 Feb. 2025
The laser energy fuses the hydrogen together to create a burst of energy in a process called ignition.
—Laura Paddison, CNN, 5 Feb. 2025
See All Example Sentences for ignition
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Elizabeth Chuck, NBC News, 11 Mar. 2025
It's activated by the same button that's used to operate the flashlight, and should reportedly be good for about 100 eight-second ignitions per battery-charge.
—Ben Coxworth, New Atlas, 15 Feb. 2025
According to state police, the vehicle was turned off and the keys were removed from the ignition before Tobin attempted to shift the vehicle into drive and pressed the gas during an escape attempt.
—Justin Muszynski, Hartford Courant, 10 Feb. 2025
The laser energy fuses the hydrogen together to create a burst of energy in a process called ignition.
—Laura Paddison, CNN, 5 Feb. 2025
See All Example Sentences for ignition
Cite this Entry
“Ignition.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ignition. Accessed 23 Mar. 2025.
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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