Gui·zhou (gw??j??, gw??-) also Kwei·chow (kw??ch??) A province of southwest China. Guiyang is the capital.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.Guizhou (??we??d???) , Kweichow or Kueichoun (Placename) a province of SW China, between the Yangtze and Xi Rivers: a high plateau. Capital: Guiyang. Pop: 38 700 000 (2003 est). Area: 174 000 sq km (69 278 sq miles)Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Gui?zhou (?gwi?d?o?) n. 1. Also, Kweichow. a province in S China. 34,580,000; 67,181 sq. mi. (173,999 sq. km).Cap.: Guiyang. 2. former name of Fengjie. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.