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 first test was inconclusive and she was threatened again with being thrown into the East River by the man administering the polygraph, Clark said.
—
Nbc News, NBC news, 27 May 2025
Baker passed a polygraph test arranged by his attorney.
—Doc Louallen, ABC News, 21 Mar. 2025
Nova Scotia's Royal Canadian Mounted Police (RCMP) announced on Wednesday that investigators have conducted polygraph interviews as part of the effort to determine what happened to Lilly and Jack Sullivan, siblings who vanished from their home in Lansdowne Station on May 2.
—Jenna Sundel, MSNBC Newsweek, 11 June 2025
Others suggested that any joke made by the leader about the upcoming season was delivered in poor taste, offending agency staff already suffering from low morale amid a flurry of resignations, firings, leadership overhauls and polygraph tests distributed to staffers.
—Nicole Sganga, CBS News, 2 June 2025
See All Example Sentences for polygraph
Nbc News, NBC news, 27 May 2025
Baker passed a polygraph test arranged by his attorney.
—Doc Louallen, ABC News, 21 Mar. 2025
Nova Scotia's Royal Canadian Mounted Police (RCMP) announced on Wednesday that investigators have conducted polygraph interviews as part of the effort to determine what happened to Lilly and Jack Sullivan, siblings who vanished from their home in Lansdowne Station on May 2.
—Jenna Sundel, MSNBC Newsweek, 11 June 2025
Others suggested that any joke made by the leader about the upcoming season was delivered in poor taste, offending agency staff already suffering from low morale amid a flurry of resignations, firings, leadership overhauls and polygraph tests distributed to staffers.
—Nicole Sganga, CBS News, 2 June 2025
See All Example Sentences for polygraph
Recent Examples of Synonyms for polygraph
lie detector
Noun
-
Every action, whether minor or major, is followed by another lie detector test to confirm continued loyalty.—
Yossi Melman,
ProPublica,
7 Aug. 2025
-
In December 2012, Sheila and Rachel agreed to take a lie detector test, even though investigators knew results were not admissible in court.—
Alex Gurley,
People.com,
6 July 2025
Cite this Entry
“Polygraph.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/polygraph. Accessed 19 Aug. 2025.
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