debunk

verb

de·​bunk (ˌ)dē-ˈbəŋk How to pronounce debunk (audio)
debunked; debunking; debunks
Synonyms of debunknext

transitive verb

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

Did you know?

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.
Many scientific studies have debunked the claim. Brennan Leach, NBC news, 30 Apr. 2026 While some data shows that political violence comes from the right, this former Democrat and Newsweek editor has debunked that. Nicole Russell, USA Today, 30 Apr. 2026 Sure enough, there’s a very easy way to debunk that claim. Ian Miller Outkick, FOXNews.com, 27 Apr. 2026 If this is the true face of the AI industry—a technological triumphalism that sees human thought as an inefficiency to overcome and human distinctiveness as a myth to debunk—the differences between the Church and Silicon Valley may prove irreconcilable. Elias Wachtel, The Atlantic, 25 Apr. 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 8 May. 2026.

Kids Definition

debunk

verb
de·​bunk (ˈ)dē-ˈbəŋk How to pronounce debunk (audio)
: to expose the falseness in
debunk popular myths
debunker noun

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