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.
There are also unfounded theories about its consequences, which Doricko has spent time on social media trying to debunk. Jeanine Santucci, USA Today, 31 Aug. 2026 The link between autism and vaccines has been routinely debunked, but Kennedy reshaped the Interagency Autism Coordinating Committee in January with people who closely hew to his views on vaccines. O. Rose Broderick, STAT, 28 Aug. 2026 The tweet above was eventually slapped with a Community Note debunking the claims. James Peckham, PC Magazine, 27 Aug. 2026 Civic experts are urging regular voters to help debunk misinformation about voting within their communities. Kevin Rector, Los Angeles Times, 23 Aug. 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 Sep. 2026.

Kids Definition

: to expose the falseness in
debunk popular myths
debunker noun
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