whistle-blower \ˈ ̷ ̷ ̷ ̷ ˌ ̷ ̷ ̷ ̷ \noun : one who reveals something covert or informs on another < a first-class whistle-blower whose allegations of fraud and waste threaten to torpedo the powerful Navy bureaucracy — J.S.Kunen > • whistle-blowing\ˈ ̷ ̷ ̷ ̷ ˌ ̷ ̷ ̷ ̷ \noun