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Showing results for private investigator. Search instead for principal investigator.
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.

See Examples For:

"When I was growing up, I dreamed about becoming a private investigator," she said.

From Science Daily Jul. 16, 2026

His friends hired a private investigator and hung fliers begging him to come back.

From The Wall Street Journal Jul. 12, 2026

The investigation was officially reopened in June 2024 after a private investigator hired by her son passed a 24-page report to Greek authorities.

From BBC Jun. 30, 2026

To the side stood private investigator Carmelo Castañeda.

From Los Angeles Times Jun. 17, 2026

Don your detective cap and become your own private investigator!

From "The Science of Breakable Things" by Tae Keller

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