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
After working with a local towing company to remove the car from the water, investigators then matched the car’s vehicle identification number to Roy Benn, who went missing in September 1967, according to a news release from the sheriff’s office.
—Gordon Ebanks, CNN Money, 16 Aug. 2025
Police ask that anyone who may have witnessed this incident or who may have information valuable to investigators call detectives at 203-946-6304 or through the department’s anonymous tip-line at 866-888-TIPS (8477).
—Staff Report, Hartford Courant, 16 Aug. 2025
Last week, investigators made a public plea for tips about Le’s whereabouts; that effort appears to have borne fruit, because police said Le was arrested Aug. 11 in Colorado with the help of the U.S. Marshals Service.
—Robert Salonga, Mercury News, 16 Aug. 2025
Recent deaths in the region linked by medical investigators to fentanyl and alcohol use include Rio Arriba County Sheriff Billy Merrifield.
—Nino Paoli, Fortune, 15 Aug. 2025
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Gordon Ebanks, CNN Money, 16 Aug. 2025
Police ask that anyone who may have witnessed this incident or who may have information valuable to investigators call detectives at 203-946-6304 or through the department’s anonymous tip-line at 866-888-TIPS (8477).
—Staff Report, Hartford Courant, 16 Aug. 2025
Last week, investigators made a public plea for tips about Le’s whereabouts; that effort appears to have borne fruit, because police said Le was arrested Aug. 11 in Colorado with the help of the U.S. Marshals Service.
—Robert Salonga, Mercury News, 16 Aug. 2025
Recent deaths in the region linked by medical investigators to fentanyl and alcohol use include Rio Arriba County Sheriff Billy Merrifield.
—Nino Paoli, Fortune, 15 Aug. 2025
See All Example Sentences for investigator
Cite this Entry
“Investigator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/investigator. Accessed 22 Aug. 2025.
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