wildfire

noun

1
: a sweeping and destructive conflagration especially in a wilderness or a rural area
2
3
: a phosphorescent glow (such as ignis fatuus or fox fire)
4
: a destructive leaf-spot disease of tobacco caused by several strains of a bacterium (Pseudomonas syringae)
Phrases
like wildfire
: very rapidly
the news spread like wildfire

Examples of wildfire in a Sentence

The recent wildfires were made worse by the strong winds.
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.
However, there's a significant difference between containing and controlling a wildfire. Ca Wildfire Bot, Sacbee.com, 23 Oct. 2025 Some environmental groups and opponents argue that the bill advances the logging industry’s priorities, limits public engagement and does little to reduce the risk of wildfires. Khaleda Rahman, MSNBC Newsweek, 22 Oct. 2025 Cyrus has been open about how seriously the 2018 wildfire affected her. Hannah Dailey, Billboard, 22 Oct. 2025 Many of the lizards tested had likely never experienced wildfire; their capture site hadn’t burned in more than 50 years. Clarissa Brincat, Scientific American, 22 Oct. 2025 See All Example Sentences for wildfire

Word History

First Known Use

12th century, in the meaning defined at sense 1

Time Traveler
The first known use of wildfire was in the 12th century

Browse Nearby Words

Cite this Entry

“Wildfire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wildfire. Accessed 25 Oct. 2025.

Kids Definition

wildfire

noun
: an uncontrollable fire that destroys a wide area
Last Updated: - Updated example sentences
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