Dictionary Tools

• 
  TheSage English Dictionary and Thesaurus Standard

  Free (For Personal Use)

  A comprehensive English dictionary and thesaurus.

• 
  GoldenDict

  Free

  A feature-rich dictionary lookup program.

• 
  Lingoes

  Free

  An easy and intuitive dictionary and text translation software, 

• 
  WordWeb Free

  Free

  Find definitions and synonyms with one-click search.

• 
  Artha

  Free

  A free cross-platform English thesaurus that works completely off-line and is based on WordNet.

• 
  SymbSearch

  Free

  A small tool for searching unicode-symbols.

• 
  Dictionary .NET

  Free

  A tiny and smart multilingual dictionary translating from/to 104 languages.