polygraph

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The person in question had no alibi for the night of the murder and had failed two polygraph tests, according to police records.

From Slate • Apr. 6, 2026

Castro was accused of being an agent of the CIA or of the US Drug Enforcement Agency and subjected to polygraph tests, during which the same set of questions was put to him for hours.

From Barron's • Feb. 6, 2026

The West Wing actor's defence team submitted more than 70 letters from people vouching for his character and said that he underwent and passed a polygraph test pertaining to the allegations against him.

From BBC • Jan. 20, 2026

In a routine polygraph examination as part of a sought promotion, one of her subordinates said Gen. Tomer-Yerushalmi had directed her spokesperson to leak the film and that other senior staff officers knew this.

From The Wall Street Journal • Nov. 23, 2025

Lie-detection tests are notoriously inaccurate, and calculations similar to the above demonstrate why truthful people who flunk polygraph tests usually outnumber liars.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos