이단이 · 이단을
heresy; heretical group
Example
중세 교회는 새로운 사상을 이단으로 몰기도 했어요.
The medieval church sometimes branded new ideas as heresy.
Word parts
이 different+단 end, tip
Literally 'a different end': straying from the main line.
Good to know
In Korea, 이단 often refers to controversial new religious groups that mainstream churches reject.
Related words