blow the whistle
Meanings
verb
- To disclose information to the public or to appropriate authorities concerning the illegal or socially harmful actions of a person or group, especially a corporation or government agency.
- To make a piercing sound which signals a referee's action or the end of a game.
Pronunciation
Word forms
Etymology
When used idiomatically, probably an allusion to a police officer blowing his or her whistle on observing a violation of the law.
Synonyms
Related words
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