This is the 14913th most frequent Korean word.
반믄
It seems "반믄" may be a misspelling or a less common term. If you meant "반문," it means "counter question" or "asking in return."
반문 is used to describe the act of questioning or responding to a question with another question.
그 학생은 선생님의 질문에 반문하며 자신의 의견을 말했다.
The student questioned the teacher's question and expressed their opinion.
반문 indicates directly asking or posing a question back related to a previous statement.
그는 나에게 왜 그렇게 생각하느냐고 반문했다.
He questioned me on why I thought that way.
반문 pertains to critically engaging with an idea or assertion through questioning to encourage dialogue.