smoking gun
noun
: something that serves as conclusive evidence or proof (as of a crime or scientific theory)
Examples of smoking gun in a Sentence
This document is the smoking gun that proves that he was lying.
Recent Examples on the Web
This observation gives us a smoking gun, a direct look into the brutal physics of these stellar events.
—
Paul Sutter, Space.com, 6 Feb. 2026
Why technology matters in missing person investigations In cases like this, technology rarely delivers a single smoking gun.
—Kurt Knutsson, FOXNews.com, 4 Feb. 2026
In his view, the smoking gun for a bubble forming would be companies going public and selling equity.
—Nick Lichtenberg, Fortune, 1 Feb. 2026
That was the smoking gun that indicates Titan’s interior is different from what was inferred from previous analyses.
—New Atlas, 18 Dec. 2025
See All Example Sentences for smoking gun
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Paul Sutter, Space.com, 6 Feb. 2026
Why technology matters in missing person investigations In cases like this, technology rarely delivers a single smoking gun.
—Kurt Knutsson, FOXNews.com, 4 Feb. 2026
In his view, the smoking gun for a bubble forming would be companies going public and selling equity.
—Nick Lichtenberg, Fortune, 1 Feb. 2026
That was the smoking gun that indicates Titan’s interior is different from what was inferred from previous analyses.
—New Atlas, 18 Dec. 2025
See All Example Sentences for smoking gun
Cite this Entry
“Smoking gun.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/smoking%20gun. Accessed 15 Feb. 2026.
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