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Dictionaries and Thesauri

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Web Reference Shelves
1. Acronym Finder
Look up 129,000+ acronyms/abbreviations & their meanings.A searchable database containing common acronyms and abbreviations about all subjects, with a focus on computers, technology, telecommunications, and the military.[Full Description]
http://www.acronymfinder.com/
2. Acronym Search
Search over 40,000 acronyms and abbreviations in many categories. Also can search by reverse lookup using a word or phrase. [Full Description]
http://www.acronymsearch.com/
3. Acronyma
Entries for over 450,000 acronyms and abbreviations. Searchable by word (words must be typed in the correct order) or by acronym. Also includes acronyms in Spanish, French, and other languages. Provides an option to submit acronyms[Full Description]
http://www.acronyma.com/
4. Allwords.com
An English dictionary with multi-lingual search.[Full Description]
http://www.allwords.com
5. American Heritage Dictionary of the English Language
Over 90,000 entries feature 10,000 new words and senses, 70,000 audio word pronunciations, 900 full-page color illustrations, language notes and word-root appendixes.[Full Description]
http://www.bartleby.com/61/
6. Babel Fish
Translates text and web pages from one language to another, including English, German, Spanish, French,... [Full Description]
http://babelfish.altavista.com/
7. Bidirectional English - Japanese Dictionary
Dictionary is based on EDICT by Jim Breen, Monash University, Australia. To find a Japanese definition of an English word, type in the English word. To look up a Japanese word, you must type in kana or kanji to find the definition. [Full Description]
http://dictionary.pspinc.com/
8. Dictionary of Spanish
Includes both English-Spanish and Spanish-English. This dictionary has over 56,508 entries with over 10,369 audio pronunciations.[Full Description]
http://www.spanishdict.com/
9. Dictionary.com
Includes many links to dictionaries and thesauri. [Full Description]
http://dictionary.reference.com/
10. Duhaime's Law Dictionary
Researched, written and maintained by lawyer Lloyd Duhaime.[Full Description]
http://www.duhaime.org/
11. English-Chinese Dictionary
Type in an english word and view the translation in Chinese characters. [Full Description]
http://www.ok88.com/go/svc/ecdict.html
12. English-French On-line Dictionary (travlang's)
Contains over 10,000 terms. Webpage also includes a link to a French-English dictionary. [Full Description]
http://dictionaries.travlang.com/EnglishFrench/
13. English-Japanese Dictionary for English Speaking People
Dictionary contents come from EDICT, Jim Breen, Monash University, Australia. Every Kanji character has its correspoinding Kana in this dictionary. [Full Description]
http://www.ss.ics.tut.ac.jp/pubdict/pubdict.html
14. Foreignword.com
Translate a word or text. Also includes links to many language dictionaries. [Full Description]
http://www.foreignword.com/
15. Free Dictionary
Contains English, medical, legal, financial, and computer dictionaries, thesaurus, acronyms, idioms, encyclopedia, a Literature Reference Library, which can all be searched with one search box. Site also has Word of the Day, Quotation of the Day,...[Full Description]
http://www.thefreedictionary.com/
16. From Language To Language
A multilingual dictionary which includes English, German, French, Italian, Russian, Turkish, and Spanish. [Full Description]
http://www.langtolang.com/
17. German <-> English Dictionary
A simple dictionary based on a wordlist with ca. 120,000 entries; a service of Chemnitz University.[Full Description]
http://dict.tu-chemnitz.de/?searchform=1
18. Glossarist.com
A searchable directory of glossaries and topical dictionaries. The compendium of glossaries includes a variety of subjects from Arts & Culture to Technology. [Full Description]
http://www.glossarist.com/
20. Infoplease Search Page
Search or browse almanacs, atlas, encyclopedia, dictionary by entering your search terms in the box or use the A -Z alphabetical index. [Full Description]
http://www.infoplease.com/
22. Jeffrey's Japanese <-> English Dictionary - Gateway
This server uses dictionary data provided by the Electronic Dictionary Research and Development Group, School of Computer Science and Software Engineering, Faculty of Information Technology, Monash University, Australia. [Full Description]
http://dict.regex.info/cgi-bin/j-e
23. Jim Breen's WWWJDIC Japanese-English Dictionary Server
Translate words in Japanese text, search for words in the dictionary, find Kanji in the Database, and lots more. Brought to you by Jim Breen, Monash University, Australia. [Full Description]
http://www.csse.monash.edu.au/~jwb/wwwjdic.html
24. LEO German-English Dictionary
The largest German-English dictionary currently available on the web (about 180,000 entries as of December 1999).[Full Description]
http://dict.leo.org/
25. Librarians Index to the Internet: Dictionaries
A collection of dictionaries selected and evaluated by librarians. [Full Description]
http://lii.org/search/file/dictionaries
26. LOGOS Dictionary (UK)
The LOGOS Dictionary, online since 1995, contains over 9 million terms in more than 200 languages. [Full Description]
http://www.logosdictionary.com/
27. MedTerms
Medical dictionary area of a commercial medical Web portal. Site also features descriptions of procedures and tests as well as drug information.[Full Description]
http://www.medterms.com/
28. Merriam-Webster Online - Dictionary and Thesaurus
Offers both the Dictionary, with definitions, word origins and pronunciations, and the Thesaurus. Spanish-English dictionary just added.[Full Description]
http://www.m-w.com/
29. OneLook Dictionary Search
Launches a multiple search of dictionary sources on the Web and retrieves links to definitions for the word searched.[Full Description]
http://onelook.com/
30. Oxford English Dictionary [UCSD Only]
The accepted authority on the evolution of the English language over the last millennium. A guide to the meaning, history, and pronunciation of over half a million words, both present and past. [Full Description]
http://dictionary.oed.com/
31. Oxford Reference Online [UCSD Only]
Search over 100 dictionaries and reference titles covering the complete subject spectrum: from General Reference and Language to Science and Medicine, and from Humanities and Social Sciences to Business and Professional.[Full Description]
URL too long to display
Help on searching
List of all reference books included
32. RhymeZone (The Lycos Network)
Type in a word to find its rhymes, synonyms, and more. [Full Description]
http://www.rhymezone.com/
34. Symbol.com (Online Encyclopedia of Western Signs and Ideograms)
Contains more than 1,600 articles about 2,500 Western signs, arranged into 54 groups according to their graphic characteristics. Use Graphic Index to search for the meaning or history of a sign; Word Index to find a sign with a certain meaning; or ...[Full Description]
http://symbols.com/
35. Webopedia: Online Dictionary for Computer and Internet Terms
Online dictionary and search engine for computer and Internet technology.[Full Description]
http://www.webopedia.com
36. Webster's Third New International Dictionary, Unabridged [UCSD Only]
America's premier lexicographical work, the 1993 edition is published here in electronic form for the first time. A dictionary of the English language containing 450,000 vocabulary entries.[Full Description]
URL too long to display
37. WordReference.com
Free online translation dictionaries. The most popular dictionaries are the Spanish Dictionary, French Dictionary and the Italian Dictionary. [Full Description]
http://wordreference.com/
38. Wordsmyth: The Educational Dictionary-Thesaurus
Includes example sentences and phrases, and indicators of context and grammar. Also offers cross- referencing, to lists of synonyms and similar words.[Full Description]
http://www.wordsmyth.net
39. yourDictionary.com
Founded in 1999 to provide the world's most comprehensive, and authoritative portal for language, and language-related products and services on the world wide web. Includes more than 1500 dictionaries representing more than 230 languages.[Full Description]
http://www.yourdictionary.com/

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