ignite

verb

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

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 gala will celebrate the artists, executives, activists, and brands who are unapologetically leveraging their platforms to advance equity, inspire action, and ignite lasting change. Christine Imarenezor, VIBE.com, 17 June 2026 Georgia Republican leaders won’t redraw the state’s political maps during a special legislative session that starts Wednesday, retreating from a proposal that had threatened to ignite one of the state’s most explosive political fights ahead of the November election. Greg Bluestein, AJC.com, 17 June 2026 Dry grasses, dead leaves, and other tree litter could easily ignite and spread fire quickly. Nc Weather Bot, Charlotte Observer, 17 June 2026 As of Wednesday, the Quarry 2 Fire, which ignited Monday, has exploded in size – scorching more than 15,900 acres and is about 50% contained, according to the Florida Forest Service's Active Wildfire Points map. Anna McAllister, CBS News, 17 June 2026 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 18 Jun. 2026.

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

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