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
Crime scene investigators collected evidence and canvassed the area for witnesses and any available surveillance video.
—Robert A. Cronkleton, Kansas City Star, 21 Oct. 2025
Federal investigators have alleged Iza began communicating with Chapell’s girlfriend and relayed to Saavedra that the party planner was a drug dealer.
—Jesse Hyde, Rolling Stone, 21 Oct. 2025
From a hospital room at Broward Health Medical Center, the father described the rescue in detail to investigators.
—Colson Thayer, PEOPLE, 21 Oct. 2025
Processing the crime scene While Skull was fighting for his life at Vanderbilt University Medical Center, crime scene investigators looked for evidence inside Skull's Rainbow Room.
—Keith Sharon, Nashville Tennessean, 21 Oct. 2025
See All Example Sentences for investigator
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Robert A. Cronkleton, Kansas City Star, 21 Oct. 2025
Federal investigators have alleged Iza began communicating with Chapell’s girlfriend and relayed to Saavedra that the party planner was a drug dealer.
—Jesse Hyde, Rolling Stone, 21 Oct. 2025
From a hospital room at Broward Health Medical Center, the father described the rescue in detail to investigators.
—Colson Thayer, PEOPLE, 21 Oct. 2025
Processing the crime scene While Skull was fighting for his life at Vanderbilt University Medical Center, crime scene investigators looked for evidence inside Skull's Rainbow Room.
—Keith Sharon, Nashville Tennessean, 21 Oct. 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 24 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share