Bonn Syllabification: (Bonn)Pronunciation: /bän/Definition of Bonn a city in the state of North Rhine-Westphalia in Germany; population 314,300 (est. 2006). From 1949 until the reunification of Germany in 1990, it was the capital of the Federal Republic of Germany (West Germany). Bonn in other Oxford dictionaries Definition of Bonn in the British & World English dictionary
