TheSage 1.4.0Description by Software Developer:
"TheSage's English Dictionary and Thesaurus is a professional software package that integrates a complete dictionary and multifaceted thesaurus of the English language into a single and powerful language reference system.
TheSage can look up words directly from almost any program (IE, Word, Firefox, Outlook, Thunderbird,... ) and is 100% portable.
Over 145,000 references with multiple detailed definitions (over 200,000)
Nearly 1,200,000 relationships between definitions (synonyms, antonyms, hypernyms, hyponyms, meronyms, holonyms,...)
A large collection that already includes approximately 35,000 examples of usage."