traitor B2

/ˈtɹeɪtɚ/ A person who betrays their country, often by helping an enemy.

traitorize C2+

/ˈtreɪtəraɪz/ to act the traitor toward; to betray

traitorous C2+

/ˈtreɪtərəs/ betraying trust or one's country; treacherous

traitorously C2+

/ˈtreɪtərəsli/ in a manner that betrays trust or allegiance