investigator

noun

in·​ves·​ti·​ga·​tor in-ˈve-stə-ˌgā-tər How to pronounce investigator (audio)
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
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.

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
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.
Similarly, in October 2023, Orange County investigators used the technology to identity Michael Ray Schlicht of Cedar Rapids, Iowa, whose body had been found in 1974 near in unincorporated Laguna Hills, now the city of Aliso Viejo, California. Marc Ramirez, USA Today, 13 May 2025 With a fingerprint match in hand, Santa Clara County investigators and San Jose police traveled to Ohio earlier this year to collect a DNA sample from Sims, with assistance from Ashtabula County authorities. Bethany Brown, People.com, 12 May 2025 When investigators found the listeria on the Fresh & Ready equipment this year, scientists at the FDA used whole genome sequencing analysis, which confirmed that the strain of listeria found at Fresh & Ready Foods matched the strain of listeria causing illnesses in the 2024 outbreak. Jaclyn Cosgrove, Los Angeles Times, 12 May 2025 After a 2024 series of Miami Herald articles containing interviews with witnesses who were never contacted by investigators from either agency, another witness, a Miami-Dade County firefighter who pulled Pino from the water, came forward and said Pino showed signs of impairment in his opinion. David Goodhue, Miami Herald, 9 May 2025 See All Example Sentences for investigator

Word History

First Known Use

1538, in the meaning defined above

Time Traveler
The first known use of investigator was in 1538

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Cite this Entry

“Investigator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/investigator. Accessed 19 May. 2025.

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