Gains·bor·ough (g?nz?bûr??, -b?r-?), Thomas 1727-1788. British portrait and landscape painter. His masterpieces include The Harvest Wagon (1767) and The Blue Boy (1770).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.Gainsborough (??e?nzb?r?; -br?) n (Biography) Thomas. 1727?88, English painter, noted particularly for his informal portraits and for his naturalistic landscapesCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Gains?bor?ough (?ge?nz?b?r o?, -?b?r o?; Brit. -b?r ?) n. Thomas, 1727?88, English painter. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.