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,... ).

Features
Comprehensive Dictionary - Multiple detailed definitions (+210,000)
Complete Thesaurus - Nearly 1,400,000 relationships between definitions (synonyms, antonyms, hypernyms, hyponyms, meronyms, holonyms,...)
Example Sentences - A large collection that already includes approximately 50,000 examples of usage.
Pronunciations - +70,000 phonetic transcriptions.
Information Integration - Each definition has its own specific thesaurus.
Cross-Referencing - Any and all displayed words are clickable, triggering a new lookup.
Wildcard Search - Match single/multiple characters as well as filter by single/groups of vowels and consonants.
Anagram Search - Only valid English words are returned