debunked; debunking; debunks
Synonyms of debunk

transitive verb

: to expose the sham (see sham entry 1 sense 2) or falseness of
debunk a legend
debunker noun

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To debunk something is to take the bunk out of it—that bunk being nonsense. (Bunk is short for the synonymous bunkum, which has political origins.) Debunk has been in use since at least the 1920s, and it contrasts with synonyms like disprove and rebut by suggesting that something is not merely untrue but is also a sham—a trick meant to deceive. One can simply disprove a myth, but if it is debunked, the implication is that the myth was a grossly exaggerated or foolish claim.

Examples of debunk in a Sentence

The article debunks the notion that life exists on Mars. The results of the study debunk his theory.
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.
Not every case deserves that kind of last-minute intervention, but in Duckett’s case nearly every shred of evidence presented at his original trial has been disproven or debunked. — Orlando Sentinel, The Orlando Sentinel, 29 Oct. 2026 Legend, truth, fiction, fact Popular media coverage of folklore often tries to debunk it. — Jeffrey Tolbert, The Conversation, 28 Oct. 2026 The accusation that Qatar uses university funding to promote antisemitism has also been debunked by a former US ambassador to Qatar who is affiliated with Georgetown, which has a branch in Doha. — Mohammed Sergie, semafor.com, 26 Oct. 2026 Twitch streamer Denims made a reaction video debunking Ethan’s video. — Bethy Squires, Vulture, 24 Oct. 2026 See All Example Sentences for debunk

Word History

First Known Use

1923, in the meaning defined above

Time Traveler
The first known use of debunk was in 1923

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Cite this Entry

“Debunk.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/debunk. Accessed 1 Nov. 2026.

Kids Definition

: to expose the falseness in
debunk popular myths
debunker noun
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