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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:

This followed uproar in the EU after Spain's Ministry of the Interior awarded Chinese tech giant Huawei a €12.3m contract to store and manage sensitive judicial wiretap data last year.

From BBC ● Oct. 1, 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

An investigation into the firings unearthed an even more alarming detail: the aides had been outed by a warrantless wiretap.

From Salon ● May 27, 2025

The case against him seemed damning when a wiretap captured a KGB officer instructing Ogorodnikova to lure Miller to Warsaw, which was part of the Soviet Bloc.

From Los Angeles Times ● Apr. 23, 2025

Beginning that very month, Harvey's wiretap commenced recording thousands of classified conversations among Soviet and East German military officials.

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau

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

There are cases where there are millions of pages and the defendant needs significant time to review millions of pages of emails, text messages, and listen to hundreds of hours of wiretaps.

From Slate ● Jan. 7, 2026

The legal notifications, under the terms of the 1968 Federal Wiretap Act, are sent out routinely to people whose private communications have been captured on federal wiretaps.

From Los Angeles Times ● Nov. 19, 2025

Nabu has been releasing new snippets of its investigation and wiretaps every day and on Tuesday it promised more would come.

From BBC ● Nov. 12, 2025

At last, technicians reached the Soviet cables, carefully exposing the inner wires and grafting on the wiretaps.

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau

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

There's no psi on us but we may be wiretapped by BEB—lots of law offices are and trainees connected with them.

From The Psilent Partner by John Victor Peterson

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

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

According to the memo, dated April 26, Los Angeles police brought a case to prosecutors in January, requesting that they charge Vasquez and Leon with illegally recording a conversation and wiretapping.

From Los Angeles Times ● May 10, 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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