treason
🇺🇸
/ˈtriːzn/
🇬🇧
/ˈtriːzn/
Betraying one's country, especially by attempting to overthrow the government or by aiding enemies.
The spy was found guilty of treason for providing classified information to a foreign government.
スパイは外国政府に機密情報を提供したことで裏切りの罪に問われました。