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To expose wrongdoing, corruption, fraud, or illegal activity within an organization to authorities or the public.
"The engineer blew the whistle on the company's falsified emissions tests."
"Whistleblower protection laws encourage employees to blow the whistle on corporate misconduct."
Individual vocabulary building blocks comprising this expression
From 19th-century British police officers blowing a pea-whistle to alert fellow constables and the public when a crime was in progress, or sports referees blowing a whistle to halt foul play.
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