Thesaurus.com.
Thesaurus.com is produced by Lexico Publishing Group, LLC, a leading provider of language reference products and services on the Internet. To use the thesaurus, simply type a word in the gold search box and click the 'Search' button. A list of synonyms and antonyms will be returned.
The Visual Thesaurus is an interactive dictionary and thesaurus which creates word maps that blossom with meanings and branch to related words. Its innovative display encourages exploration and learning. You'll understand language in a powerful new way. The Visual Thesaurus is available in both the Desktop Edition and Online Edition.
Sybrina's Phrase Thesaurus is an electronic reference tool for creative writers of any genre. Great for anyone with a need to compose unique, descriptive phrases.
Sybrina's Phrase Thesaurus is packed full of descriptive phrases on every subject. From descriptions of the body, and how it looks, moves and interacts to word pictures describing of all types of landscapes, waterscapes and skyscapes.
WordNet is a large lexical database of English, developed under the direction of George A. Miller. Nouns, verbs, adjectives and adverbs are grouped into sets of cognitive synonyms (synsets), each expressing a distinct concept. Synsets are interlinked by means of conceptual-semantic and lexical relations.