The word specifically refers to killing family, not just any person. The prince committed parricide, not just murder, by slaying the king, his father.
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Legal Charges
In legal terms, 'parricide' might lead to specific charges different from other types of homicide. During the trial, the prosecutor labeled the crime as parricide.
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Literary Usage
'Parricide' is often used in dramas and literature to add intense emotional conflict. Shakespearean tragedies are rife with parricide, underscoring themes of betrayal.