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
Paramedics took her to a local hospital, where she was pronounced dead, according to investigators.
—Matthew Rodriguez, CBS News, 21 Mar. 2026
Motives centers around Detective Izzy Morgan (Vasquez), a relentless investigator pulled into a dark and intricate case that exposes the hidden violence beneath wealth and privilege.
—Anthony D'alessandro, Deadline, 20 Mar. 2026
Trucking company lacked safety measures The findings point to a broader cascade of regulatory failures and safety lapses — by the state, the driver and his employer — that investigators say may have contributed to the crash.
—Alex Driggars, Austin American Statesman, 20 Mar. 2026
Surveillance footage from the scenes shows the suspects using magnets to manipulate the fuel pump solenoids by opening pump panels and allowing fuel to be dispensed without payment, investigators said.
—Michelle Del Rey, USA Today, 20 Mar. 2026
See All Example Sentences for investigator
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Matthew Rodriguez, CBS News, 21 Mar. 2026
Motives centers around Detective Izzy Morgan (Vasquez), a relentless investigator pulled into a dark and intricate case that exposes the hidden violence beneath wealth and privilege.
—Anthony D'alessandro, Deadline, 20 Mar. 2026
Trucking company lacked safety measures The findings point to a broader cascade of regulatory failures and safety lapses — by the state, the driver and his employer — that investigators say may have contributed to the crash.
—Alex Driggars, Austin American Statesman, 20 Mar. 2026
Surveillance footage from the scenes shows the suspects using magnets to manipulate the fuel pump solenoids by opening pump panels and allowing fuel to be dispensed without payment, investigators said.
—Michelle Del Rey, USA Today, 20 Mar. 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 21 Mar. 2026.
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