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 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 Her work has prompted sweeping changes to laws and regulations, including a California-wide ban on a debunked lie detector technology used to interrogate prisoners. Susie Neilson, San Francisco Chronicle, 5 Mar. 2026 See All Example Sentences for lie detector
Recent Examples of Synonyms for lie detector
polygraph
Noun
  • His certainty comes after Lisa Ribacoff-Mooney, a polygraph expert and the owner of Interpoint Investigative Services, told RadarOnline that Guthrie is likely dead and she will probably never be found, because authorities just don’t know where to look.
    Lizzie Lanuza, StyleCaster, 15 May 2026
  • The polygraph is composed of several minuscule sensors in one soft device.
    Adam Harrington, CBS News, 14 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 22 May. 2026.

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