This is the 4187th most frequent Korean word.
주최하는
"Hosting" or "organizing."
In this sentence, "주최하는" is used to describe the city as the organizer or host of the event.
그 축제는 도시가 주최하는 행사입니다.
The festival is an event hosted by the city.
Here, "주최하는" indicates the school is organizing or sponsoring the lecture.
이번 주에 학교가 주최하는 강연이 있습니다.
This week, there is a lecture hosted by the school.
In this usage, "주최하는" identifies the museum as the arranger or host of the exhibition.