This is the 134th most frequent Korean word.
반면
"On the other hand" or "whereas."
반면 is used here to show a contrast between my preference for exercising and my friend's preference for reading.
저는 운동을 좋아하는 반면 제 친구는 독서를 더 좋아합니다.
I like exercising, whereas my friend prefers reading.
반면 indicates a contrast between working hard and experiencing potential health issues, highlighting a dual perspective.
그는 일을 열심히 하는 반면 과로로 건강에 문제가 생길 수 있습니다.
He works hard, but on the other hand, it could lead to health problems due to overwork.
반면 contrasts the low price of the product with its unsatisfactory quality, showing both sides of an evaluation.