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wiretap

American  
[wahyuhr-tap] / ˈwaɪərˌtæp /

noun

  • wiretaps
    plural
  1. an act or instance of tapping telephone or telegraph wires for evidence or other information.


verb (used with object)

  • wiretaps,
    present (3rd person singular)
  • wiretapped,
    past participle,  past
  • wiretapping
    present participle
  1. to obtain (information, evidence, etc.) by tapping telephone or telegraph wires.

    to wiretap conversations.

  2. to listen in on by means of a wiretap.

    to wiretap a telephone; to wiretap a conversation.

verb (used without object)

  • wiretaps,
    present (3rd person singular)
  • wiretapped,
    past participle,  past
  • wiretapping
    present participle
  1. to tap telephone or telegraph wires for evidence, information, etc.

adjective

  1. pertaining to or obtained by wiretap.

wiretap British  
/ ˈwaɪəˌtæp /

verb

  1. to make a connection to a telegraph or telephone wire in order to obtain information secretly

"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

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Etymology

Origin of wiretap

First recorded in 1950–55; back formation from wiretapper

Explanation

To wiretap is to secretly listen in on someone's phone conversation. In some cases, the FBI will use a wiretap to investigate a serious federal crime. A wiretap is either the act of surveillance with a listening device or the device itself: "They put a wiretap on the mob boss's home phone, but he always uses a cellphone." As a verb, wiretap means to use such a device: "The government can't wiretap someone without a warrant." Since the invention of the telephone, law enforcement has used wiretaps — originally from the sense of tapping (obtaining information from) a telephone wire.

Keep Reading on Vocabulary.com

Vocabulary lists containing wiretap

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:

Silverman also said police had conducted a wiretap operation in the case, but did not disclose the nature of it.

From Los Angeles Times Apr. 23, 2026

In fact, conspirators were overheard on a wiretap saying they “wouldn’t trust Joe” to agree to their scheme.

From Barron's Oct. 17, 2025

Unnamed White House advisers who spoke with the Guardian said they raised the issue with aides close to Vice President JD Vance, only to find that the wiretap story was bunk.

From Salon May 27, 2025

Wise did indict two white Gun Trace Task Force officers, but only because they ended up being heard on a wiretap that was tracking a drug crew.

From Slate May 9, 2024

The prosecutor’s office, following Terryl’s instinct, used wiretap evidence to secure a conviction.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel

According to an annual government report, the number of wiretaps obtained by DHS — often to investigate drug trafficking — plummeted to 23 in 2025, from 133 the previous year.

From Salon Aug. 15, 2026

With genetic data unable to distinguish between them, investigators relied on phone records, surveillance footage, wiretaps and efforts to corroborate their whereabouts and movements, according to Le Parisien.

From BBC Feb. 8, 2026

You typically have to have either wiretaps or recording in the rooms, or what appears to be the case here is a witness who is cooperating.

From Slate Jan. 7, 2026

On Tuesday, an appeals chamber found there had been insufficient evidence against Uribe, that wiretaps used in the trial had been illegally conducted, and that the trial judge had committed errors of "methodology."

From Barron's Oct. 21, 2025

The only evidence of Nixon’s shady dealings came from bugs and wiretaps, which Johnson certainly did not wish to make public.

From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin

The anti-corruption bureau shared part of a wiretapped conversation as part of its case and said six more people had been identified as suspects.

From BBC May 12, 2026

The intelligence officers scribbled notes on wiretapped phone calls and typed thousands of pages of reports on opposition activities.

From The Wall Street Journal Dec. 29, 2025

The anti-corruption agency then gradually released a series of videos featuring wiretapped conversations of those implicated in the scheme.

From Barron's Nov. 13, 2025

People I knew and I, myself, were wiretapped and followed by FBI and military intelligence agents.

From Salon May 6, 2025

Whoever had wiretapped it would wonder why I didn't use it.

From Little Brother by Cory Doctorow

Four people have been found guilty and given jail terms by a Greek court after a wiretapping scandal shook the country in 2022.

From BBC Feb. 26, 2026

Schmidt and the company are accused of violating the California Comprehensive Computer Data Access and Fraud Act, and a section of the state penal code that prohibits wiretapping.

From Los Angeles Times Nov. 20, 2025

Assuming they’d followed the law, arranging such surveillance would have involved a number of legal and technical steps, including securing a wiretapping warrant.

From Salon Jun. 25, 2025

Federal law is focused on preventing wiretapping, mandating that at least one party to the call knows that it’s being recorded.

From Slate Oct. 31, 2024

Saidy suggested that there was an actual plot to keep Fischer from becoming World Champion, and this involved the wiretapping of his parents’ phone.

From "Endgame" by Frank Brady

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