Simple Definition of whistle–blower
: a person who tells police, reporters, etc., about something (such as a crime) that has been kept secret
Full Definition of whistle–blower
: one who reveals something covert or who informs against another <pledges to protect whistle–blowers who fear reprisals — Wall Street Journal>
whistle–blowingplay \-ˌblō-iŋ\ noun
First Known Use of whistle–blower
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