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Synonyms

private investigator

American  

noun

  1. private detective. PI, p.i., P.I.


Etymology

Origin of private investigator

First recorded in 1935–40

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Wright later called an allegation of paying a private investigator to "blag" information from Lady Lawrence "absolute nonsense".

From BBC • Feb. 17, 2026

In 1986, Don Winslow was a 33-year-old New York-born, world-traveling private investigator who, during stakeouts, read crime fiction by authors such as Elmore Leonard, James Ellroy and Joseph Wambaugh.

From The Wall Street Journal • Feb. 6, 2026

After setting up his own company, he was hired an as in-house private investigator for two US news shows.

From BBC • Feb. 3, 2026

In tears, she said it was "deeply hurtful" to read the statement of a private investigator who allegedly admitted, in her words to the court on Thursday, "bugging and listening to all my conversations."

From BBC • Jan. 22, 2026

The general put him in touch with a private investigator named Peter Kalitka, who’d done contract work for both the DIA and the CIA.

From "Into the Wild" by Jon Krakauer