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 investigators and May expressed concern that DeCristo had not addressed her actions.
—Ishani Desai, Sacbee.com, 8 Jan. 2026
Parents of students with disabilities have increasingly resorted to filing complaints with the state over their schools’ failure to educate their children, and most of the time, state investigators have agreed.
—Becca Savransky, Idaho Statesman, 8 Jan. 2026
Anyone who may know more was asked to contact investigators at Jurupa Valley's Sheriff's Station by calling (951) 955-2600.
—Dean Fioresi, CBS News, 8 Jan. 2026
According to federal investigators, Neves Velente was responsible for both the Brown University mass shooting that killed two students and injured nine and the murder of Massachusetts Institute of Technology professor Nuno Loureiro, each of which occurred in December.
—Molly Parks, The Washington Examiner, 7 Jan. 2026
See All Example Sentences for investigator
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Ishani Desai, Sacbee.com, 8 Jan. 2026
Parents of students with disabilities have increasingly resorted to filing complaints with the state over their schools’ failure to educate their children, and most of the time, state investigators have agreed.
—Becca Savransky, Idaho Statesman, 8 Jan. 2026
Anyone who may know more was asked to contact investigators at Jurupa Valley's Sheriff's Station by calling (951) 955-2600.
—Dean Fioresi, CBS News, 8 Jan. 2026
According to federal investigators, Neves Velente was responsible for both the Brown University mass shooting that killed two students and injured nine and the murder of Massachusetts Institute of Technology professor Nuno Loureiro, each of which occurred in December.
—Molly Parks, The Washington Examiner, 7 Jan. 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 9 Jan. 2026.
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