AachenPronunciation: /ˈɑːx(ə)n, ˈɑːk(ə)n, ˈaːxn/Definition of Aachen an industrial city and spa in western Germany, in North Rhine-Westphalia; population 258,800 (est. 2006). French name Aix-la-Chapelle.Aachen in other Oxford dictionaries Definition of Aachen in the US English dictionary
