cracksman (?kræksm?n) n, pl -menslang a burglar, esp a safe-breakerCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014cracks?man (?kræks m?n) n., pl. -men. Slang. a burglar. [1805?15] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.