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Synonyms

private investigator

American  

noun

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


Other Word Forms

Noun Inflected Forms

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.

To the side stood private investigator Carmelo Castañeda.

From Los Angeles Times • Jun. 17, 2026

The live-action series is based on the Marvel comic Spider-Man Noir, telling the story of Ben Reilly - a hardened private investigator in 1930s New York, played by Nicolas Cage.

From BBC • May 27, 2026

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

A private investigator who was initially a key witness in a privacy case brought by several claimants against the publisher of the Daily Mail, including Prince Harry, has denied "switching sides" out of revenge.

From BBC • Mar. 23, 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

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