Tian·jin (tyän?j?n?) also Tien·tsin (ty?n?ts?n?) A city of northeast China near the Bohai Sea southeast of Beijing. It was a treaty port after 1860 and was the scene of fighting during the Boxer Rebellion (1900). Today it is a major industrial center.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.Tianjin (?tj?n?d??n) , Tientsin or T’ien-chingn (Placename) an industrial city in NE China, capital of Tianjin municipality (traditionally in Hebei province), on the Grand Canal, 51 km (32 miles) from the Yellow Sea: the third largest city in China; seat of Nankai University (1919). Pop: 9 346 000 (2005 est)Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Tian?jin (?ty?n?d??n) also Tientsin n. a port in E Hebei province, in NE China. 5,770,000. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.