lie detector

Definition of lie detectornext
as in polygraph
an instrument for detecting physical signs of the tension that goes with lying hooked the suspect up to a lie detector before interrogating him about the robbery

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Example Sentences

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.
Recent Examples of lie detector Would that statement hold up against a lie detector test? Matt Schneidman, New York Times, 27 Apr. 2026 Though Earle left Cooper’s Unwell Network months before Johnson chimed in during her Vanity Fair lie detector test in June 2025, nothing was ever confirmed on what went down between the two women and why Earle parted ways with Cooper’s company in March 2025. Carly Thomas, HollywoodReporter, 16 Apr. 2026 This is Ariana Grande’s, what, third time in a lie detector? Bethy Squires, Vulture, 16 Apr. 2026 In his letter to Weber, Curtis promised to take a lie detector test after each election. Los Angeles Times, 25 Mar. 2026 See All Example Sentences for lie detector
Recent Examples of Synonyms for lie detector
polygraph
Noun
  • The Washington Post reported months later, in October, that the Pentagon planned to impose NDAs for its workers, along with random polygraph tests.
    Connor Greene, Time, 27 May 2026
  • But Washington passed a polygraph test and the case sat dormant for several years.
    John Annese, New York Daily News, 22 May 2026

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Cite this Entry

“Lie detector.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lie%20detector. Accessed 5 Jun. 2026.

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