whistle-blower

UK/ˈwɪsəlˌbləʊ.ə/British, Southern, Standard/ˈwɪsəlˌbləwə/Canada, US/ˈwɪsəlˌbloʊ.ɚ/Australia/ˈwɪsəlˌbləʉ.ə/

noun

One who reports a problem or violation to the authorities; especially, an employee or former employee who reports a violation by an employer.

“We owe it to a small group of brave whistle-blowers that we know about the infractions at all.”

Meanings

nounwhistle-blower (plural whistle-blowers)

plural whistle-blowers · alternative whistleblower · alternative whistle blower

  1. USOne who reports a problem or violation to the authorities; especially, an employee or former employee who reports a violation by an employer.

    We owe it to a small group of brave whistle-blowers that we know about the infractions at all.

    3 more examples

    As my study proceeded, I began to see that an investigation of organizational morality should also explore managerial dissenters, so-called whistleblowers, many of whom take stands against their organizations on grounds that they define as moral.

    1988, Robert Jackall, “Author's Note”, in Moral Mazes: The World of Corporate Managers, Twentieth Anniversary edition, →ISBN, page 242

    Usually the whistleblower is not fired outright. The organization's goal is to disconnect the act of whistleblowing from the act of retaliation, which is why so much legislation to protect whistleblowers is practically irrelevant. The usual practice is to demoralize and humiliate the whistleblower, putting him or her under so much psychological stress that it becomes difficult to do a good job.

    2012, Frederick D. Lipman, Whistleblowers, Hoboken, N.J.: Wiley, →ISBN, page 60

    The huge breach of the National Security Agency’s domestic surveillance program in June 2013 was one of the proudest moments in modern journalism, and one of the purest: A brave and disgusted whistle-blower, Edward Snowden, revealed the government’s extensive surveillance of American and foreign citizens.

    2020 September 14, Ben Smith, “The Intercept Promised to Reveal Everything”, in The New York Times, →ISSN

    Synonyms: abaddon, accuser, beefer, bewrayer, bigmouth, blabber, blabtale, blabtongue

Synonyms & antonyms

nounOne who reports a problem or violation to the authorities; especially, an employee or former employee who reports a violation by an employer.

More synonyms by meaning

nounan informant who exposes wrongdoing within an organization in the hope of stopping it

Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From whistle + blower, referring to a police officer blowing their whistle on observing a violation of the law.

Full word history & related roots →

Translations

Chinese Mandarin 吹哨人, 吹哨者
  • 吹哨人 (chuīshàorén)one who reports a problem or violation to the authorities
  • 吹哨者 (chuīshàozhě)one who reports a problem or violation to the authorities
Czech informátor
  • informátorone who reports a problem or violation to the authorities
Danish whistleblower
  • whistleblowerone who reports a problem or violation to the authorities
Dutch klokkenluider
  • klokkenluiderone who reports a problem or violation to the authorities
Finnish ilmiantaja
  • ilmiantajaone who reports a problem or violation to the authorities
French lanceur d'alerte, lanceuse d'alerte
  • lanceur d'alerteone who reports a problem or violation to the authorities
  • lanceuse d'alerteone who reports a problem or violation to the authorities
  • dénonciateurone who reports a problem or violation to the authorities
  • dénonciatriceone who reports a problem or violation to the authorities
German Whistleblower, Hinweisgeber
  • Whistleblowerone who reports a problem or violation to the authorities
  • Hinweisgeberone who reports a problem or violation to the authorities
  • Hinweisgeberinone who reports a problem or violation to the authorities
  • Enthüllerone who reports a problem or violation to the authorities
  • Skandalaufdeckerone who reports a problem or violation to the authorities
Hungarian informátor
  • informátorone who reports a problem or violation to the authorities
Icelandic uppljóstrari
  • uppljóstrarione who reports a problem or violation to the authorities
Indonesian pelapor pelanggaran, pelapor
  • pelapor pelanggaranone who reports a problem or violation to the authorities
  • pelaporone who reports a problem or violation to the authorities
Irish sceithire
  • sceithireone who reports a problem or violation to the authorities
Italian informatore
  • informatoreone who reports a problem or violation to the authorities
Japanese 内部告発者
  • 内部告発者 (naibukokuhatsusha)one who reports a problem or violation to the authorities
Korean 내부고발자
  • 내부고발자 (naebugobalja)one who reports a problem or violation to the authorities
Malay pemberi maklumat
  • pemberi maklumatone who reports a problem or violation to the authorities
Norwegian fløyteblåser, varsler
  • fløyteblåserone who reports a problem or violation to the authorities
  • varslerone who reports a problem or violation to the authorities
Polish sygnalista, sygnalistka
  • sygnalistaone who reports a problem or violation to the authorities
  • sygnalistkaone who reports a problem or violation to the authorities
Portuguese delator
  • delatorone who reports a problem or violation to the authorities
Russian осведоми́тель, осведоми́тельница
  • осведоми́тель (osvedomítelʹ)one who reports a problem or violation to the authorities
  • осведоми́тельница (osvedomítelʹnica)one who reports a problem or violation to the authorities
  • информа́тор (informátor)one who reports a problem or violation to the authorities
  • доно́счик (donósčik)one who reports a problem or violation to the authorities
  • доно́счица (donósčica)one who reports a problem or violation to the authorities
Spanish revelador de secretos, delator en su trabajo
  • revelador de secretosone who reports a problem or violation to the authorities
  • delator en su trabajoone who reports a problem or violation to the authorities
  • alertadorone who reports a problem or violation to the authorities
  • denuncianteone who reports a problem or violation to the authorities
  • alcaucilone who reports a problem or violation to the authorities
  • propaladorone who reports a problem or violation to the authorities
  • pregonanteone who reports a problem or violation to the authorities
Swedish visselblåsare
  • visselblåsareone who reports a problem or violation to the authorities
Turkish muhbir
  • muhbirone who reports a problem or violation to the authorities
Ukrainian інформа́тор, інформа́торка
  • інформа́тор (informátor)one who reports a problem or violation to the authorities
  • інформа́торка (informátorka)one who reports a problem or violation to the authorities
Vietnamese người thổi còi, người tố cáo
  • người thổi còione who reports a problem or violation to the authorities
  • người tố cáoone who reports a problem or violation to the authorities
  • người tố giácone who reports a problem or violation to the authorities
Cite this entry
APA

whistle-blower. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/whistle-blower

MLA

“whistle-blower.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/whistle-blower. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “whistle-blower,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/whistle-blower.

Source: whistle-blower on Wiktionary, CC BY-SA 4.0.