Thesaurus results for POLYGRAPH

polygraph

noun

ˈpä-lē-ˌgraf

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

Synonyms & Similar Words

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lie detector

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 polygraph The polygraph is composed of several minuscule sensors in one soft device. —

Adam Harrington, CBS News, 14 May 2026 Homeland Security officials even subjected him to a polygraph test, accusing him and other officials of leaking details of a private meeting. —

Gabriela Aoun Angueira, Los Angeles Times, 12 May 2026 When Kavanaugh asks if Patel really is paranoid enough to make FBI staffers take polygraph tests, Patel denies it. —

William Vaillancourt, Rolling Stone, 10 May 2026 However, Baker's boyfriend, later identified as Chris Melton, per The Red & Black, was ruled out after passing a polygraph and providing an alibi. —

Emily Blackwood, PEOPLE, 2 May 2026 See All Example Sentences for polygraph

Recent Examples of Synonyms for polygraph

lie detector

Noun

These plays all scratch the same exact itch of, say, watching Bachelorette hunks get hooked up to a lie detector or watching Mike White whine about the lack of fine cuisine on Survivor.

— Literary Hub, Literary Hub, 2 June 2026
McGrail agrees to take a lie detector test.

— Peter Van Sant, CBS News, 14 May 2026