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.
First, the study debunks the common narrative that men are stronger dealmakers than women. Michelle Travis, Forbes.com, 23 July 2026 Trump has long denied his loss to Biden, though his claims have been repeatedly debunked. Rebecca Schneid, Time, 22 July 2026 The ominous acts would later be debunked and deemed fake by the FBI in July. Jason P. Frank, Vulture, 20 July 2026 Nearly all of these claims have been debunked through investigations and audits. Mathew Miranda, Sacbee.com, 17 July 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 30 Jul. 2026.

Kids Definition

: to expose the falseness in
debunk popular myths
debunker noun

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