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
The scouting trips were particularly suspicious to investigators because none of the suspects are over 21 years old, ruling out legitimate visits to bars or clubs.
—Michael Ruiz, FOXNews.com, 4 Nov. 2025
The department is asking witnesses to come forward, and also asks that people who have video of the incident submit it to investigators, both from the incident and from exterior cameras in the area.
—Teri Figueroa, San Diego Union-Tribune, 4 Nov. 2025
The Chinese e-commerce giant promised to cooperate with investigators who were alerted by an anonymous tip about the dolls — sold by third-party vendors — on Shein’s marketplace.
—Tom Chivers, semafor.com, 4 Nov. 2025
In fact, several of the investigators believed the shooting was intentional, and that the Biden administration had actually soft-pedaled the investigation’s findings to appease Israel.
—Scott Griffen, MSNBC Newsweek, 4 Nov. 2025
See All Example Sentences for investigator
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Michael Ruiz, FOXNews.com, 4 Nov. 2025
The department is asking witnesses to come forward, and also asks that people who have video of the incident submit it to investigators, both from the incident and from exterior cameras in the area.
—Teri Figueroa, San Diego Union-Tribune, 4 Nov. 2025
The Chinese e-commerce giant promised to cooperate with investigators who were alerted by an anonymous tip about the dolls — sold by third-party vendors — on Shein’s marketplace.
—Tom Chivers, semafor.com, 4 Nov. 2025
In fact, several of the investigators believed the shooting was intentional, and that the Biden administration had actually soft-pedaled the investigation’s findings to appease Israel.
—Scott Griffen, MSNBC Newsweek, 4 Nov. 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 10 Nov. 2025.
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