- a city in W Germany, at the junction of the Rhine and Ruhr rivers: the largest river port in Europe; formed 1929 from the cities of Duisburg and Hamborn.
- an industrial city in NW Germany, in North Rhine-Westphalia at the confluence of the Rivers Rhine and Ruhr: one of the world's largest and busiest inland ports; university (1972). Pop: 506 496 (2003 est)
