investigator

noun

in·​ves·​ti·​ga·​tor in-ˈve-stə-ˌgā-tər How to pronounce investigator (audio)
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
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.

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Deputies took a missing persons report, but Sheriff’s investigators soon suspected the elderly Sayasane had been killed, with signs pointing to his roommate, 31-year-old Benjamin Dougherty. Darrell Smith, Sacbee.com, 18 Apr. 2025 Miami Gardens’ investigators on Friday afternoon were still trying to determine who the shooter was and the circumstances of the altercation, the spokesperson said. David Goodhue, Miami Herald, 18 Apr. 2025 Tesla Center footage allegedly showed McIntire lighting a device, which ignites, and throwing it on a Cybertruck. McIntire then returned to the area of the witness’ home on foot and was seen leaving the area in his vehicle around 11:13 p.m., investigators said. Pj Green, Kansas City Star, 18 Apr. 2025 Boeing declined to comment, referring queries to American Airlines and investigators. Kathleen Wong, USA TODAY, 14 Mar. 2025 See All Example Sentences for investigator

Word History

First Known Use

1538, in the meaning defined above

Time Traveler
The first known use of investigator was in 1538

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Cite this Entry

“Investigator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/investigator. Accessed 21 Apr. 2025.

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