This is the 1065th most frequent Korean word.
참여하는
"Participating" or "engaging."
In this sentence, the participial adjective '참여하는' is used to describe the act of participating in the competition.
학생들은 과학 경시대회에 참여하는 것을 좋아합니다.
The students enjoy participating in the science competition.
Here, '참여하는' describes the club related to an act of participation by a person.
참여하는 동아리에 대해 설명해 주세요.
Please explain about the club (you are) participating in.
In this context, '참여하는' refers to the people actively taking part in the program.