ignite

verb

ig·​nite ig-ˈnīt How to pronounce ignite (audio)
ignited; igniting

transitive verb

1
a
: to set afire
also : kindle
b
: to cause (a fuel) to burn
2
: to subject to fire or intense heat
especially : to render luminous by heat
3
a
: to heat up : excite
oppression that ignited the hatred of the people
b
: to set in motion : spark
ignite a debate

intransitive verb

1
: to catch fire
2
: to begin to glow
ignitability noun
ignitable adjective
or less commonly ignitible
igniter noun
or less commonly ignitor

Examples of ignite in a Sentence

The fire was ignited by sparks. The paper ignited on contact with sparks. a material that ignites easily Three wins in a row ignited the team. His proposal is igniting opposition.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The outdoor festival theater is destroyed by fire (apparently ignited by a cooking fire caused by transients living under the stage). Pam Kragen, San Diego Union-Tribune, 19 Oct. 2025 Black horseback riders during the 2020 George Floyd protests ignited a national dialogue around Black urban cowboys that continued through heavy media coverage and, later, photography books and exhibitions. Leah Asmelash, CNN Money, 19 Oct. 2025 Even the fumes coming from the gas container can ignite. Kamron Sanders, Better Homes & Gardens, 19 Oct. 2025 Freshman running back Asir Nembhard ignited the drive with runs of 20 and 37 yards. Dan Albano, Oc Register, 19 Oct. 2025 See All Example Sentences for ignite

Word History

Etymology

Latin ignitus, past participle of ignire to ignite, from ignis

First Known Use

1666, in the meaning defined at transitive sense 2

Time Traveler
The first known use of ignite was in 1666

Browse Nearby Words

Cite this Entry

“Ignite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ignite. Accessed 21 Oct. 2025.

Kids Definition

ignite

verb
ig·​nite ig-ˈnīt How to pronounce ignite (audio)
ignited; igniting
1
a
: to set on fire : light
b
: to cause (a fuel mixture) to burn
2
: to catch fire
3
: to set in motion : spark
ignite a debate
ignitable
-ˈnīt-ə-bəl
adjective
igniter noun
also ignitor

More from Merriam-Webster on ignite

Last Updated: - Updated example sentences
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