Zhang·jia·kou (jäng?jyä?k??) also Kal·gan (käl?gän?) A city of northeast China near the Great Wall northwest of Beijing.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Zhangjiakou (?d?æ??d?jæk??) , Changchiakow or Changchiak’oun (Placename) 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 or Kalgan Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Zhang?jia?kou (?d????d?y??ko?) also Changchiak’ou n. a city in NW Hebei province, in NE China. 605,906. Formerly, Kalgan. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.