Roget's Thesaurus:
Roget's Thesaurus of English words and phrases.
http://www.thesaurus.com
Sybrina's Phrase Thesaurus:
A creative phrase tool for creative writers of any genre including
college students, people just learning English, people wanting to
improve their communication skills, artistic professionals and
others.
http://www.sybrina.com
Germ:
Searchable WordNet and Roget's Thesaurus with meaning trees.
http://www.germ.cz/
WordNet - a Lexical Database for English:
An on-line lexical reference system whose design is inspired by
current psycholinguistic theories of human lexical memory. English
nouns, verbs, adjectives and adverbs are organized into synonym
sets, each representing one underlying lexical concept. Different
relations link the synonym sets. From the Cognitive Science
Laboratory, Princeton University
http://www.cogsci.princeton.edu/~wn
Lexical Freenet:
Allows you to search for relationships between words and concepts
that might never have occurred to you before.
http://www.link.cs.cmu.edu/lexfn/
Plumb Design Visual Thesaurus:
An exploration of sense relationships within the English language.
By clicking on words, you follow a thread of meaning, creating a
spatial map of linguistic associations.
http://www.plumbdesign.com/thesaurus/
Bartleby.com: Reference:
Includes "Roget's International Thesaurus of English Words and
Phrases" and Houghton-Mifflin's "Roget's II: The New Thesaurus,"
third edition.
http://www.bartleby.com/reference/
INGRID Library Thesaurus:
Allows direct term search with results hyperlinked to broader and
narrower search terms. Available in English and Estonian.
http://ingrid.utlib.ee/thesaurus.html
HASSET:
Provides direct term search followed by hierarchical and other types
of browsing. Based on a UNESCO thesaurus.
http://dasun1.essex.ac.uk/services/nhasset.html
Historical Thesaurus of English:
Contains the vocabulary of English from the earliest written records
to the present, with known recorded dates of usage, taken from the
Oxford English Dictionary.
http://www2.arts.gla.ac.uk/SESLL/EngLang/thesaur/homepage.htm
Yahoo! Roget's II Thesaurus:
Contains over 260,000 synonyms and cross-references. Features
succinct word definitions and hyperlinked category index.
http://education.yahoo.com/reference/thesaurus
Phrases Thesaurus:
A resource for writers. Enter a single word and it will return a
list of phrases and sayings that are related to the word in some
way. In English.
http://www.phrasefinder.co.uk
