1. 
   StuffIt
   StuffIt is a family of computer software utilities for archiving and compressing files on the Macintosh and Microsoft Windows platforms: it was originally produced for the Macintosh. An old version (5.2.0?) for Linux (x86) and Sun Solaris 2.7 or later is also available. The proprietary compression ...
   Found op http://en.wikipedia.org/wiki/StuffIt
   
   
2. 
   Stuffit
   (tool, file format) (filename extension: .sit) A file archiving and compression utility, developed by Aladdin Systems, Inc.. Stuffit was originally developed for the Macintosh and is still the Mac standard tool for compression and archiving (compressing multiple files into one). Stuffit is now als...
   Found op http://foldoc.org/Stuffit
   
   
3. 
   stuffit
   1) How do you shut up a turkey?
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/stuffit/1
   
   

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