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1. a person who fixes a specific difficult problem, or fixes things in general; often preceded by a title such as Mr, Mrs, Prof
2. a solution to a complex problem or difficult situation, often a slightly underhand solution
informal that fixes things
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014