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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

"You look at profiles on these sites and ask yourself 'is this person real?'. You have to be like a private investigator researching people's profiles before you connect."

From BBC • May 21, 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

The Advocates have since ceased operations, but co-founder and private investigator, Cynthia Liles, is still running the hotline under the name 2x2 Church Accountability.

From BBC • Feb. 15, 2026

Don your detective cap and become your own private investigator!

From "The Science of Breakable Things" by Tae Keller

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