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• Arts: Writers Resources: Research  (19)
• Arts: Writers Resources: Software: Spelling and Grammar  (50)
• Computers: Internet: Searching  (1,538)
• Computers: Software: Internet: Servers: Dictionary  (1)
• Recreation: Humor: Wordplay  (224)
• Science: Social Sciences: Linguistics: Translation: Tools  (72)

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• Merriam-Webster OnLine   - A free, searchable on-line dictionary and thesaurus, word games, a word of the day, and many other English language and vocabulary reference tools and resources.
• OneLook Dictionaries   - Look up a word or term in an Internet dictionary or glossary. Free search access to a frequently updated database of words, terms, names, and acronyms.

• AllWords.com - Features two modern English dictionaries, multilingual search, and translation. Also features a guide to language sites on the web and a language discussion forum.
• Cambridge International Dictionaries - Free online dictionary from Cambridge University Press.
• The Century Dictionary Online - Free 500,000 word dictionary of English with an encyclopedia and world atlas. Uses DjVu and JPEG formats to display page images. Has headword lookup and full text search of 22 million words of underlying text.
• Cooldictionary.com - Free edition of a complete Webster dictionary. Fully crosslinked.
• DICT Development Group - A WWW interface to several freely available on-line dictionaries, including Webster's 1913, the Jargon File, the US Gazetteer, and Easton's Bible Dictionary.
• Dictionary Building Software for Reporters - Software program for realtime reporters and captioners that lists many diverse vocabulary lists.
• Dictionary of Comprehension - A Dictionary of Comprehension in different languages.
• Dictionary of Difficult Words - Search or browse this dictionary of more than 13,000 words.
• Dictionary Society of North America - An international organization of librarians, booksellers, translators, linguists, publishers, writers, journalists, and collectors. Founded in 1975 to further research in dictionary making, study, collection, and use. Member of the American Council of Learned Societies.
• Dictsearch - Search a variety of dictionaries including monolingual, bilingual, and specialty dictionaries.
• eLook Dictionary - Provides definitions, synonyms, and related words.
• Farlex Free Dictionary - Collection of dictionaries by subject including medical and legal together with free and subscription encyclopedias, in ten languages.
• Glossaries - Collection of more than 2400 links to glossaries and dictionaries.
• HyperDictionary.com - Includes a thesaurus and searchable dictionaries for English, computers, dreams and medicine.
• Hypertext Webster Gateway - WWW interface to multiple English dictionaries.
• Information Please Dictionary - Infoplease's free online dictionary. Features almanacs, an encyclopedia, and an atlas.
• Inter Active Terminology for Europe (IATE) - The European Commission's multilingual term bank. Particularly rich in technical and specialized terminology related to European Union policy.
• KnowPlay? - Simple and integrated access to dictionaries, thesauri, encylopedias, and quotation databases.
• The Newbury House Online Dictionary - Search over 40,000 entries to get clear concise definitions and when available related pictures.
• On-Line Dictionaries - Online specialty dictionaries for English, Russian, German, Finnish and Latin.
• Online Dictionaries, Translators and References - Online dictionaries, translators, references accessible from a small pop-window. Requires use of a browser with Java script enabled.
• The Online Dictionary List - A large directory of online dictionaries, both in English and bilingual, including specialist dictionaries.
• Oxford Advanced Learner's Dictionary - Allows users to search, free of charge, for entries in the latest (year 2000) edition of the Oxford Advanced Learner's Dictionary.
• Quotations: The Yale Dictionary - Project to create a searchable online database and a quotation dictionary from Yale University Press.
• Research-It - Includes several dictionaries and a thesaurus as well as online tools for shipping and mailing, currency exchange, and language translation.
• Skeptic's Dictionary - Skeptical definitions and essays on occult, paranormal, supernatural and pseudoscientific ideas and practices with references to the best skeptical literature.
• Voycabulary - Online dictionary and thesaurus web linking lookup reference tool.
• Web Dictionaries - Multi-search tool by Tinh Van, which consults English-only dictionaries, and Vietnamese into English or French translation dictionaries.
• Webster's Online Dictionary: The Rosetta Edition - This database doubled with a metasearch tool extracts records from a variety of online and public-domain paper dictionaries, both general and specialized. It offers English definitions, as well as translations from/to a hundred languages.
• Word Assault - Looks up multiple words simultaneously using several databases including Webster's, Easton's, Wordnet, and the Devil's Dictionary.
• Word Central - Student dictionary and rhyming dictionary online at Merriam-Webster's website. Daily Buzzword by subscription.
• Word Spy - Site dedicated to recently coined words and existing words revived into modern usage.
• WordWeb - A free English thesaurus and dictionary for Windows.
• Worthless Word for the Day - Word-a-day server delivers obscure words not from medical, legal or other professional jargon, with definitions and use citations. Extensive links.