as in lie detector
an instrument for detecting physical signs of the tension that goes with lying
intelligence agents were trained to fool the polygraph
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Recent Examples of polygraph
Imagine working under constant surveillance where your keystrokes are analyzed more closely than a polygraph test and your Slack tone is graded like a high school essay.
—
Raghu Para, Forbes.com, 11 Aug. 2025
Douglas was publicly named a suspect on America's Most Wanted, though, as the Times-Dispatch reported, a spokesperson for Royal Caribbean said Douglas voluntarily submitted to a polygraph test for the FBI and passed.
—Randall Colburn, EW.com, 16 July 2025
Iannone also passed a polygraph and provided his DNA to the authorities.
—Veronica Fulton, NBC news, 6 July 2025
Ward confronted Barnes about that polygraph test from the original case file.
—Vladimir Duthiers, Paul Larosa, CBS News, 12 Apr. 2025
See All Example Sentences for polygraph
Raghu Para, Forbes.com, 11 Aug. 2025
Douglas was publicly named a suspect on America's Most Wanted, though, as the Times-Dispatch reported, a spokesperson for Royal Caribbean said Douglas voluntarily submitted to a polygraph test for the FBI and passed.
—Randall Colburn, EW.com, 16 July 2025
Iannone also passed a polygraph and provided his DNA to the authorities.
—Veronica Fulton, NBC news, 6 July 2025
Ward confronted Barnes about that polygraph test from the original case file.
—Vladimir Duthiers, Paul Larosa, CBS News, 12 Apr. 2025
See All Example Sentences for polygraph
Recent Examples of Synonyms for polygraph
lie detector
Noun
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This one has all the family secrets, betrayal and a sibling who acts as a human lie detector.—
Kail Lowry,
People.com,
23 Aug. 2025
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The all-night stream included a wide array of activities to promote donations and keep people engaged, including taking lie detector tests, being covered by snakes, getting haircuts, and oil wrestling.—
Nick Mordowanec
Jason Lemon,
MSNBC Newsweek,
15 Aug. 2025
Cite this Entry
“Polygraph.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/polygraph. Accessed 18 Sep. 2025.
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