whistleblower

noun

whis·​tle·​blow·​er ˈ(h)wi-səl-ˌblō-ər 

variants or whistle-blower

plural whistleblowers or whistle-blowers

: one who reveals something covert or who informs against another

especially : an employee who brings wrongdoing by an employer or by other employees to the attention of a government or law enforcement agency

Note: A whistleblower is commonly protected legally from retaliation.

I think whistleblowers play a hugely important role in countering the worst corporate and government excesses.

—Damon Poeter

… pledges to protect whistle-blowers who fear reprisals for their efforts.

—Wall Street Journal

Congress also added significant new protection for whistleblowers. The 1986 act provides remedies including reinstatement, back-pay with interest, and, as appropriate, punitive damages for whistleblowers who are discharged, demoted, or discriminated against due to involvement with a False Claims disclosure.

—Bradford A. Penney

whistleblowing

ˈ(h)wi-səl-ˌblō-iŋ 

adjective

or whistle-blowing

a whistleblowing report

Many states have already enacted laws that protect whistle-blowing employees from retaliation.

—Greg Critser

whistleblowing noun

or whistle-blowing

… a National Security Agency agent who got in trouble for whistle-blowing.

—Renée Camus

Synonyms

• betrayer
• canary [slang]
• deep throat
• fink
• informant
• informer
• nark [British]
• rat
• rat fink
• snitch
• snitcher
• squealer
• stool pigeon
• stoolie
• talebearer
• tattler
• tattletale
• telltale

Examples of whistleblower in a Sentence

There are laws to protect whistleblowers who reveal corporate malfeasance.

Recent Examples on the Web

The outsourcing to Mexico helped prompt a recent whistleblower letter from staff to Trump Media’s board that has been roiling the company. —Robert Faturechi, ProPublica, 2 Nov. 2024

Boeing also has been the target of multiple whistleblower lawsuits that have alleged lax safety and manufacturing practices that resulted in quality-control issues. —Laurence Darmiento, Los Angeles Times, 31 Oct. 2024

The episode beat out his longstanding second most viewed YouTube episode, with 38 million views, is with famous whistleblower Edward Snowden. —Stephen Pastis, Forbes, 31 Oct. 2024

Trump’s episode currently ranks as Rogan’s third most popular on YouTube behind an episode interviewing UFO researchers Bob Lazar and Jeremy Corbell (61 million) and another with surveillance whistleblower Edward Snowden (38 million). —James Hibberd, The Hollywood Reporter, 29 Oct. 2024

Word History

First Known Use

1906, in the meaning defined above

Legal Definition

whistleblower

noun

whis·​tle·​blow·​er

ˈhwi-səl-ˌblō-ər

: an employee who brings wrongdoing by an employer or other employees to the attention of a government or law enforcement agency and who is commonly vested by statute with rights and remedies for retaliation compare qui tam action

whistleblowing

-iŋ

noun