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 first, chief writer and director Norihiro Naganuma comfortably settles back into the rhythm, and the episodic pleasures remain, like seeing how apothecary turned investigator Maomao’s unique perspective brushes up against the rigidity of the royal court.
—Kambole Campbell, Vulture, 9 Dec. 2025
Andriy Yermak, the head of the office of the president of Ukraine, resigned late last month after his home was raided by anti-corruption investigators.
—Rachel Wolf, FOXNews.com, 9 Dec. 2025
According to court records obtained by KGET, investigators found that the car's air conditioner automatically shuts off after running for more than an hour if it is not manually restarted.
—Nicole Acosta, PEOPLE, 9 Dec. 2025
Federal investigators had been examining unusual betting activity over a Charlotte Hornets and New Orleans Pelicans game on March 23, 2023.
—Cara Tabachnick, CBS News, 8 Dec. 2025
See All Example Sentences for investigator
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Kambole Campbell, Vulture, 9 Dec. 2025
Andriy Yermak, the head of the office of the president of Ukraine, resigned late last month after his home was raided by anti-corruption investigators.
—Rachel Wolf, FOXNews.com, 9 Dec. 2025
According to court records obtained by KGET, investigators found that the car's air conditioner automatically shuts off after running for more than an hour if it is not manually restarted.
—Nicole Acosta, PEOPLE, 9 Dec. 2025
Federal investigators had been examining unusual betting activity over a Charlotte Hornets and New Orleans Pelicans game on March 23, 2023.
—Cara Tabachnick, CBS News, 8 Dec. 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 12 Dec. 2025.
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