This is the 2699th most frequent Russian word.
бахмуте
"Бахмуте" is the prepositional case of "Бахмут," a city in Ukraine.
Here, 'Бахмуте' is in the prepositional case, indicating location within the city.
В Бахмуте много исторических памятников.
In Bakhmut, there are many historical landmarks.
'Бахмуте' again shows location using the prepositional case, associated with the verb 'были' (were).
Мы были в Бахмуте прошлым летом.
We were in Bakhmut last summer.
'Бахмуте' is used in the prepositional case, showing the topic of the discussion introduced by the preposition 'о' (about).