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Showing results for detective. Search instead for detentive.
Synonyms

detective

American  
[dih-tek-tiv] / dɪˈtɛk tɪv /

noun

  • detectives
    plural
  1. a member of the police force or a private investigator whose function is to obtain information and evidence, as of offenses against the law.


adjective

  1. of or relating to detection or detectives.

    a detective story.

  2. serving to detect; detecting.

    various detective devices.

detective British  
/ dɪˈtɛktɪv /

noun

    1. a police officer who investigates crimes

    2. See private detective

    3. ( as modifier )

      a detective story

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. used in or serving for detection

  2. serving to detect

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of detective

First recorded in 1830–40; detect + -ive

Explanation

Whether it's a police detective who investigates crimes or a private detective hired to find a missing person, a detective is someone whose job is to find out hard-to-get information. Detective comes from the Latin root detectus meaning to uncover or expose. Detectives detect, or discern and uncover the truth, the way a dog might detect an odor and uncover a bone. Sherlock Holmes, perhaps the most famous detective in fiction, used disguises, deductive reasoning and forensics to solve crimes. "When you have eliminated the impossible, whatever remains, however improbable, must be the truth," he famously said.

Keep Reading on Vocabulary.com

Vocabulary lists containing detective

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:

Reform UK has chosen a former Metropolitan Police detective to contest the Holborn and St Pancras by-election on 8 October.

From BBC Sep. 14, 2026

Increasingly, Americans seem accustomed to doing that sort of detective work themselves.

From Salon Sep. 13, 2026

For O'Connor, the research also demonstrated how much paleontology can resemble detective work.

From Science Daily Sep. 11, 2026

The cases taken by these seat-of-the-pants sleuths are not always cloak-and-dagger—a potential client of their fledgling detective agency commends them at one point for having found someone else’s lost dog.

From The Wall Street Journal Sep. 10, 2026

He stumbled to the door in his bathrobe and found a detective standing there.

From "The Mona Lisa Vanishes" by Nicholas Day

The detectives brought the bags of tapes into the room where Bayoumi was being questioned - and some of the footage was played to him.

From BBC Sep. 7, 2026

Like detectives following a suspect’s footprints, savvy investors know it’s important to read the clues the market is giving.

From The Wall Street Journal Sep. 7, 2026

He was blue-lighted down to Paddington Green Police Station in London, where detectives began questioning him.

From BBC Sep. 7, 2026

Police had known about a potential connection between Davis and the Shakur killing since 2008, when detectives investigating the Wallace murder interviewed Davis.

From Los Angeles Times Sep. 1, 2026

Secretary Stanton attempted to coordinate the efforts of the local police force, detectives, and the army.

From "Chasing Lincoln's Killer" by James L. Swanson

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