whistle-blower

or whis·tle blow·er

[ hwis-uhl-bloh-er, wis- ]
/ ˈʰwɪs əlˌbloʊ ər, ˈwɪs- /

noun

a person who informs on another or makes public disclosure of corruption or wrongdoing.

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Origin of whistle-blower

First recorded in 1965–70

OTHER WORDS FROM whistle-blower

whistle-blowing, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for whistle-blower

British Dictionary definitions for whistle-blower

whistle-blower

noun

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