Nanjing Syllabification: (Nan·jing)Pronunciation: /nänˈjiNG/ (also Nanking /ˈnanˈkiNG/)Definition of Nanjing a city in eastern China, on the Yangtze River, capital of Jiangsu province; population 4,105,400 (est. 2006). Nanjing in other Oxford dictionaries Definition of Nanjing in the British & World English dictionary