Macmillian Dictionary and Thesaurus
Description: Macmillian Dictionary and Thesaurus is an online dictionary and thesaurus resource providing definitions, synonyms, antonyms, and word origins. It has over 350,000 words and phrases with audio pronunciation.
Type: software
WordWeb
Description: WordWeb is an international English dictionary and thesaurus that can look up words in almost any program. It includes definitions, synonyms, antonyms and related words.
Type: software