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
At Diaz’s home, investigators reportedly found 90 rounds of ammunition.
—Staff Report, Hartford Courant, 5 Feb. 2025
Federal investigators are still trying to piece together the events that led to the fatal collision.
—Muri Assunção, New York Daily News, 4 Feb. 2025
The series features inside access to case files and evidence, police interviews with the victims, and exclusive interviews with victims, police officers, investigators, and ABC News Contributor Matt Murphy, former homicide prosecutor assigned to Newport Beach, California.
Sgt.
—Doc Louallen, ABC News, 4 Feb. 2025
Crash investigators are not blaming the air traffic controller directing the traffic, who advised the helicopter to be aware of the regional jet’s position in the area ahead of the crash.
—Chris Isidore, CNN, 4 Feb. 2025
See all Example Sentences for investigator 
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Staff Report, Hartford Courant, 5 Feb. 2025
Federal investigators are still trying to piece together the events that led to the fatal collision.
—Muri Assunção, New York Daily News, 4 Feb. 2025
The series features inside access to case files and evidence, police interviews with the victims, and exclusive interviews with victims, police officers, investigators, and ABC News Contributor Matt Murphy, former homicide prosecutor assigned to Newport Beach, California.
Sgt.
—Doc Louallen, ABC News, 4 Feb. 2025
Crash investigators are not blaming the air traffic controller directing the traffic, who advised the helicopter to be aware of the regional jet’s position in the area ahead of the crash.
—Chris Isidore, CNN, 4 Feb. 2025
See all Example Sentences for investigator
Dictionary Entries Near investigator
Cite this Entry
“Investigator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/investigator. Accessed 10 Feb. 2025.
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