whistle-blower, n.
an informant who exposes wrongdoing within an organization in the hope of stopping it
<noun.person>
whistle blower whistle-blower whistleblower
sample sentences
"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"
semantic pointers
hypernym