GoldenDict
GoldenDict is a free dictionary lookup program, but it does more than just show you the meaning of words. It is a feature rich program with links, images, colors and formatting. In addition it has support for other file formats like Babylon .BGL ABBYY Lingvo .dsl source files, ABBYY Lingvo .lsa/.dat audio archives and many more that you can use. With GoldenDict you can install dozens of dictionaries easily.