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polygraph Synonyms

Another word for polygraph

Choosing another word for polygraph depends on context, so the synonyms and similar words below are separated across 4 exact definitions and ranked by match strength.
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• noun (Context 1)

A machine designed to detect and record simultaneous changes in physiological characteristics, such as a person's pulse, blood pressure, and respiration rate, used especially as a lie detector.

Usage Example

"The defense attorney argued that the results from the lie detector were unreliable and inadmissible in court."

Strongest
lie detector

• verb (Context 2)

To administer a lie-detector test to a person using a physiological recording machine.

Usage Example

"Federal investigators decided to interrogate the witness to verify the accuracy of his statement."

Weak
interrogate
examine

• noun (Context 3)

An author who writes productively on a wide variety of subjects.

Usage Example

"The seventeenth-century scholar was a celebrated polymath whose treatises spanned theology, astronomy, and music."

Strong
polymath

• noun (Context 4)

A mechanical device consisting of linked pens used historically for producing simultaneous copies of a handwritten document or drawing.

Usage Example

"Museum visitors admired the brass pantograph that Thomas Jefferson used to duplicate his personal correspondence."

Strong
pantograph
Weak
copier

Cite this Entry


Wordmom. (2026). Synonyms for Polygraph. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/polygraph
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