This is the 8355th most frequent Russian word.
могилевском
"Могилевском" is the prepositional case form of "Могилёвский," meaning "Mogilev" (relating to the city of Mogilev) in a locational context.
In this context, 'могилёвском' describes the museum as being situated in Mogilev, modifying 'музее'.
Мы посетили экспозицию в могилёвском музее.
We visited the exhibition in the Mogilev museum.
Here, 'могилёвском' refers to a festival associated with or held in Mogilev, qualifying 'фестивале'.
Расскажите мне больше о могилёвском фестивале.
Tell me more about the Mogilev festival.
Here, 'могилёвском' is an adjective derived from 'Могилёв', indicating that the university is located in the city of Mogilev.