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
The table starts wondering how polygraphs work.
—
Olivia Crandall, Vulture, 13 Nov. 2025
Cabinet secretaries have required staff members to take random polygraph tests.
—Antonia Hitchens, New Yorker, 10 Nov. 2025
But Forrester later recanted, and failed polygraph tests — and no charges were filed.
—Christina Coulter, PEOPLE, 8 Nov. 2025
Schrader was one of a few suspects in the case, but passed a polygraph test and then left abruptly for Florida.
—Phaedra Trethan, USA Today, 6 Nov. 2025
See All Example Sentences for polygraph
Olivia Crandall, Vulture, 13 Nov. 2025
Cabinet secretaries have required staff members to take random polygraph tests.
—Antonia Hitchens, New Yorker, 10 Nov. 2025
But Forrester later recanted, and failed polygraph tests — and no charges were filed.
—Christina Coulter, PEOPLE, 8 Nov. 2025
Schrader was one of a few suspects in the case, but passed a polygraph test and then left abruptly for Florida.
—Phaedra Trethan, USA Today, 6 Nov. 2025
See All Example Sentences for polygraph
Recent Examples of Synonyms for polygraph
lie detector
Noun
-
This year’s lie detector session will take place at Gothenburg – Nordstan from January 16 to 18 and at Olof Palmes plats from January 24 to 26.—
Zac Ntim,
Deadline,
12 Jan. 2026
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Watch Sweeney and Seyfried’s full Vanity Fair lie detector test video below.—
Zack Sharf,
Variety,
12 Dec. 2025
Cite this Entry
“Polygraph.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/polygraph. Accessed 20 Jan. 2026.
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