Üsküdar Syllabification: (Üs·kü·dar)Pronunciation: /ˌo͞oskəˈdär/Definition of Üsküdar a city in northwestern Turkey, across from Istanbul on the Bosporus where it joins the Sea of Marmara; population 643,800 (est. 2009). Former name Scutari.Üsküdar in other Oxford dictionaries Definition of Üsküdar in the British & World English dictionary