noun

whistleblower

whistleblower

The whistleblower revealed the company's illegal activities.

The whistleblower revealed the company's illegal activities.

a whistleblower a person who exposes misconduct The whistleblower contacted the press.

informant, informer

From 'whistle' + 'blower'. Someone who 'blows the whistle' on wrongdoing, like a referee stopping a game.

Imagine someone literally blowing a whistle to draw attention to a secret or wrongdoing.

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