also whistle-blower, 1963 in the figurative sense, American English, from whistle (n.) as something sounded in an alert + agent noun from blow (v.1).
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
whisky
whisper
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whit
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white bread
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