a city in NE China, in NW Hebei province: a military centre, controlling the route to Mongolia, under the Ming and Manchu dynasties. Pop: 973 000 (2005 est)
Former names: Wanchüan, Kalgan
Zhangjiakou in American English
(ˈdʒɑŋdʒiˈɑˈkoʊ)
city in Hebei province, NE China, at a gateway of the Great Wall of China: pop. 606,000