Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “whistle-blower”

whistle-blower

noun [C]  /ˈhwɪs·əlˌbloʊ·ər, ˈwɪs-/
a person who tells someone in authority about something illegal that is happening, esp. in a business or government
(Definition of whistle-blower noun from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definitions of “whistle-blower” in other dictionaries

Translations of “whistle-blower”

Word of the Day

exercise

physical activity that you do to make your body strong and healthy

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More