gam·ing (g??m?ng)n.1. Gambling, especially casino gambling.2. The playing of games, especially video games.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.gaming (??e?m??) n (Gambling, except Cards) a. gambling on games of chanceb. (as modifier): gaming house; gaming losses. Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014gam?ing (?ge? m??) n. 1. gambling. 2. the playing of games, esp. those developed to help solve problems. [1495?1505] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.