Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun whistle-blower

1 sense of whistle-blower

Sense 1
whistle blower, whistle-blower, whistleblower -- (an informant who exposes wrongdoing within an organization in the hope of stopping it; "the law gives little protection to whistleblowers who feel the public has a right to know what is going on"; "the whistleblower was fired for exposing the conditions in mental hospitals")
       => informant, source -- (a person who supplies information)