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.
间谍因向外国政府提供机密信息而被判叛国罪。