митрополия(A metropolis, metropolitanate or metropolitan (arch)diocese is an episcopal see whose bishop is the metropolitan bishop or archbishop of an ecclesiastical province. Metropolises, historically, have been important cities in their provinces.
Eastern Orthodox
In the Eastern Orthodox Churches, a metropolis (also called metropolia or metropolitanate) is a type of diocese, along with eparchies, exarchates and archdioceses. In the churches of Greek Orthodoxy, every diocese is a metropolis, headed by a metropolitan while auxiliary bishops are the only non-metropolitan bishops. wikipedia.org)
метрополия(A term applied loosely to any large city, but specifically to that city in a country which is the seat of government, of ecclesiastical authority, or of commercial activity; Термин, применяемый в отношении любого крупного города, особенно в отношении города, где расположено правительство страны, верховное духовенство, или города, являющегося центром деловой активности)
wikipedia.org)