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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.

The ultraviolent 1991 film was directed by her former husband Renny Harlin and co-starred Samuel L. Jackson as a lowly private investigator.

From Los Angeles Times • May 13, 2026

Our everyman is Ben Reilly — played by the incomparable Nicolas Cage, making his live-action television debut — a private investigator who moonlights as the city’s only superhero, the Spider.

From Los Angeles Times • May 13, 2026

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

“He’s a private investigator attached to the staff of my office. ...”

From "Native Son" by Richard Wright

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