This is the 7622nd most frequent Russian word.
ереванский
The Russian word "ереванский" means "Yerevan-related" or "of Yerevan" (pertaining to the city of Yerevan, the capital of Armenia).
Here, 'Ереванский' functions as an adjective modifying the noun 'зоопарк', denoting the origin or geographical association of the zoo being in Yerevan.
Ереванский зоопарк является популярным местом для семейных прогулок.
The Yerevan Zoo is a popular place for family outings.
In this sentence, 'ереванский' is used as an adjective describing the noun 'коньяк', referring to a type of brandy associated with or produced in the Yerevan region.
Мы попробовали ереванский коньяк, и он оказался замечательным.
We tried Yerevan brandy, and it turned out to be excellent.
Here, 'ереванском' is the prepositional form of the adjective 'ереванский', indicating the noun 'университете' is from or related to Yerevan.