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.
Investigators later said the nightclub blaze may have been ignited by sparklers attached to champagne bottles that set fire to soundproofing materials on the ceiling, rapidly spreading flames through the crowded venue. Claire Carter, The Washington Examiner, 11 Mar. 2026 The Panthers’ running back, who put together his second-consecutive 1,000-yard rushing season and ignited a resurgence for the Carolina offense in 2025, is headed to the Steelers, according to a report from Jordan Schultz. Charlotte Observer, 10 Mar. 2026 Lebanon has been pulled deep into the war in the Middle East since Hezbollah opened fire to avenge the killing of Iran's supreme leader, igniting an Israeli offensive which has killed nearly 500 people in Lebanon, according to Lebanese authorities − with the death toll rising by around 100 a day. Thao Nguyen, USA Today, 10 Mar. 2026 Israel attacked oil depots on Sunday, igniting huge fires that smothered Tehran in thick, choking smoke, amid what residents have said is the heaviest bombing of the war so far. Patrick Reevell, ABC News, 10 Mar. 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 12 Mar. 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

More from Merriam-Webster on ignite

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