private investigator

noun

: a person not a member of a police force who is licensed to do detective work (such as investigation of suspected wrongdoing or searching for missing persons)

Examples of private investigator in a Sentence

She hired a private investigator to follow her husband. the retired policeman decided to become a private investigator
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.
Ryan Couch, a former volunteer private investigator who had been working with the Engelbert family on the missing persons case, told Cowboy State Daily that the remains were located three to five miles from where Engelbert was last seen walking alone, as captured in the surveillance footage. David Chiu, PEOPLE, 14 Oct. 2025 According to court records, Recio agreed to bribe Costanzo, who was the DEA supervisor in Miami, in exchange for his providing the private investigator with confidential information about narcotics investigations. Jay Weaver, Miami Herald, 13 Oct. 2025 First Brands implosion ‘not the last’ Industry insiders say the nature of certain private markets transactions means problems are becoming increasingly tricky to spot, despite more intensive levels of due diligence among investors, often involving private investigators. Hugh Leask, CNBC, 10 Oct. 2025 Kate was also allegedly targeted by a private investigator on behalf of a Mail journalist, the lawyers said. Michael Holden, USA Today, 2 Oct. 2025 See All Example Sentences for private investigator

Word History

First Known Use

1940, in the meaning defined above

Time Traveler
The first known use of private investigator was in 1940

Browse Nearby Words

Cite this Entry

“Private investigator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/private%20investigator. Accessed 20 Oct. 2025.

Kids Definition

private investigator

noun
: a person who does detective work and is not a member of a police force

Legal Definition

private investigator

noun
: a person not a member of a police force who is licensed to do detective work (as investigation of suspected wrongdoing or searching for missing persons)
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!