Renegade and Whistle-blower

Renegade noun – A person who abandons a cause or organization usually without right.

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Whistle-blower and renegade are semantically related In some cases you can use "Whistle-blower" instead a noun "Renegade".

Whistle-blower noun – A person who provides information about another's wrongdoing.

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Renegade and whistle-blower are semantically related in traitor topic. Sometimes you can use "Renegade" instead a noun phrase "Whistle-blower", if it concerns topics such as person who is disloyal.