turncoat
🇺🇸
/ˈtɜːrnkəʊt/
🇬🇧
/ˈtɜːnkəʊt/
someone who changes sides or betrays their beliefs for personal gain
When John switched political parties, his former colleagues accused him of being a turncoat.
존이 정당을 바꾸자, 이전 동료들은 그를 배반자로 비난했다.