treachery
🇺🇸
/ˈtretʃəri/
🇬🇧
/ˈtretʃəri/
When someone betrays a person who trusts them, often by sharing their secrets.
His friend's act of treachery hurt him deeply.
그의 친구의 배신 행위는 그를 깊이 상하게 했다.