外がい患かん罪ざい

noun

treason; conspiracy against one's country

A legal term referring to the crime of conspiring with a foreign power to harm one's own country. Rare in everyday conversation; mainly encountered in legal or historical contexts.

• 外がい患かん罪ざいは、国こっ家か反はん逆ぎゃくの重じゅう罪ざいとして扱あつかわれる。

  Treason is treated as a serious crime against the state.