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
Overwhelm, already a danger to investigators managing a complex case, isn’t helped by online conspiracy theorists and other noisemakers.
—Paige Williams, New Yorker, 14 Feb. 2026
In Gingles’ apartment, investigators found a letter from the DMV in Texas, dated less than two weeks before the murders, rejecting an application for a Texas certificate of title for a vehicle.
—Shira Moolten, Sun Sentinel, 13 Feb. 2026
His plans aren’t connected to the firings of the investigators, the source said.
—Leo Schwartz, Fortune, 13 Feb. 2026
The appeals court also found that testimony presented to the grand jury through the ISP investigator subjected Kilkelly to a prejudicial denial of due process, and that dismissal of the original charges by Judge Fix was proper.
—Charles Selle, Chicago Tribune, 13 Feb. 2026
See All Example Sentences for investigator
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Paige Williams, New Yorker, 14 Feb. 2026
In Gingles’ apartment, investigators found a letter from the DMV in Texas, dated less than two weeks before the murders, rejecting an application for a Texas certificate of title for a vehicle.
—Shira Moolten, Sun Sentinel, 13 Feb. 2026
His plans aren’t connected to the firings of the investigators, the source said.
—Leo Schwartz, Fortune, 13 Feb. 2026
The appeals court also found that testimony presented to the grand jury through the ISP investigator subjected Kilkelly to a prejudicial denial of due process, and that dismissal of the original charges by Judge Fix was proper.
—Charles Selle, Chicago Tribune, 13 Feb. 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 15 Feb. 2026.
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