investigator
noun
in·ves·ti·ga·tor
in-ˈve-stə-ˌgā-tər 
plural investigators
: one who investigates something: such as
a
: detective
a private investigator
Debra Winger plays the investigator who becomes fixated on identifying a killer …—
Margaret Rauch
Margaret Rauch
b
: a person who conducts experiments or is involved in scientific studies for research
the lead investigator in a clinical trial
For dialect recording, it is best for the investigator to take down as full and accurate notes as possible without slowing down the pace of the interview.—Ravin I. McDavid, Jr.
Ravin I. McDavid, Jr.Examples of investigator in a Sentence
investigators who discovered new evidence that the universe was much older than had been previously estimated
the investigator in charge of the case was touted as an expert at tracing stolen art
Recent Examples on the Web
Thus far, investigators have recovered two firearms, both from the United States.
—Swasti Singhai, USA Today, 18 June 2026
The first officer was then pulled off the crash for jurisdictional reasons and relayed inaccurate information to another investigator — saying the driver had nothing to drink that day.
—Karen Morfitt, CBS News, 17 June 2026
Based on an investigator’s findings, the department may force the school to fix the problem.
—Alia Wong, Los Angeles Times, 17 June 2026
His on-the-ground research helped US investigators build their case against Latchford.
—Oscar Holland, CNN Money, 17 June 2026
See All Example Sentences for investigator
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Swasti Singhai, USA Today, 18 June 2026
The first officer was then pulled off the crash for jurisdictional reasons and relayed inaccurate information to another investigator — saying the driver had nothing to drink that day.
—Karen Morfitt, CBS News, 17 June 2026
Based on an investigator’s findings, the department may force the school to fix the problem.
—Alia Wong, Los Angeles Times, 17 June 2026
His on-the-ground research helped US investigators build their case against Latchford.
—Oscar Holland, CNN Money, 17 June 2026
See All Example Sentences for investigator
Cite this Entry
“Investigator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/investigator. Accessed 20 Jun. 2026.
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