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 28-year-old pleaded guilty to possessing the destructive device, which contained flammable ethanol and a wick designed to ignite when lighted. Ruben Vives, Los Angeles Times, 7 May 2026 Lindsay jokes that Kyle lost his wedding ring but found a DJ career, which lights the long fuse that ignites the whole evening. Brian Moylan, Vulture, 6 May 2026 This represents the eventual curtain call of the New Wave and Post-Punk groups that came up in the wake of the punk explosion ignited by the 1976 release of Ramones, paving the way for Indie Rock. Michael Tedder, SPIN, 5 May 2026 Jefferson’s vision of American flames igniting the planet lands differently now. Daniel Immerwahr, New Yorker, 4 May 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 9 May. 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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