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Synonyms

whistle-blower

British  

noun

  1. informal a person who informs on someone or puts a stop to something

"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

Example Sentences

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In 2008, both Lee Jae-yong and his father resigned after a former Samsung lawyer turned whistle-blower claimed knowledge of a slush fund that was being used for bribes and political payoffs.

From BBC Apr. 29, 2026

The claim alleges video captured on the devices is routed to contractors in Africa for AI training purposes, citing whistle-blower complaints.

From Barron's Mar. 31, 2026

Well-known whistle-blower Nelson Amenya voiced similar concerns, urging the Kenyan government to release the full agreement so "we can read it for ourselves".

From BBC Dec. 5, 2025

These laws demand reporting on safety incidents, strengthen whistle-blower protections, and require disclosures on mental health chatbots—all reasonable and targeted interventions that protect our communities and our families.

From Barron's Dec. 4, 2025

Just as most students at Ohio State University read Liar’s Poker as a how-to manual, most TV and radio interviewers read me as a whistle-blower.

From "The Big Short" by Michael Lewis

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