This is the 8353rd most frequent Russian word.
могилев
"Mогилёв" is the name of a city in eastern Belarus.
'Могилёв' serves to specify which city's coat of arms is being discussed.
На гербе Могилёва изображён лев.
A lion is depicted on the coat of arms of Mogilev.
In this sentence, 'Могилёв' is used as a proper noun referring to the name of a city.
Могилёв – это город в Беларуси.
Mogilev is a city in Belarus.
Here, 'Могилёв' is part of a locative expression, indicating the location where the action took place.