This is the 8523rd most frequent Korean word.
非尹
"Non-Yoon," referring to opposition or disassociation from Yoon (typically Yoon Suk Yeol, the South Korean president).
The term "非尹" in this sentence is used to describe a group or an ideology opposing "尹", presumably referring to a specific individual with the surname Yoon.
그는 非尹 지지 그룹에 속해 있다.
He belongs to the anti-Yoon (非尹) support group.
Here, "非尹" represents the action or concept of being anti-Yoon, indicating challenging or contradiction toward the idea or entity symbolized by "尹".
非尹이기는 어렵지만, 그가 맞서 싸우고 있다.
It's difficult to oppose Yoon (非尹), but he is fighting against it.
In this case, "非尹" symbolizes a perspective or coalition opposing "尹" and implies the choice of aligning oneself with this opposition.