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
According to police and court filings, investigators became concerned after identifying purchases that included explosive-proof containers, ball bearings, a four pound Thermite kit and other gun accessories.
—Aaron Parseghian, CBS News, 24 Dec. 2025
Witnesses provided a description and investigators located the suspect -- identified by police as 40-year-old Antonio Moore -- a short time later, authorities said.
—Meredith Deliso, ABC News, 23 Dec. 2025
Authorities at the time said Ashlee was refusing to cooperate with investigators.
—Christine Pelisek, PEOPLE, 23 Dec. 2025
As the search for the shooter continues, investigators across local, state and federal agencies are working well together, Smiley said Sunday night.
—Eric Levenson, CNN Money, 16 Dec. 2025
See All Example Sentences for investigator
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Aaron Parseghian, CBS News, 24 Dec. 2025
Witnesses provided a description and investigators located the suspect -- identified by police as 40-year-old Antonio Moore -- a short time later, authorities said.
—Meredith Deliso, ABC News, 23 Dec. 2025
Authorities at the time said Ashlee was refusing to cooperate with investigators.
—Christine Pelisek, PEOPLE, 23 Dec. 2025
As the search for the shooter continues, investigators across local, state and federal agencies are working well together, Smiley said Sunday night.
—Eric Levenson, CNN Money, 16 Dec. 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 28 Dec. 2025.
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