  |
Dictionary.com - http://dictionary.reference.com/
Online English dictionary, thesaurus and reference guide. Includes word games, online translator, and word of the day feature. |
  |
The American Heritage Dictionary of the English Language - http://www.bartleby.com/61/
Online publication of the 4th edition. Featuring audio word pronunciations, illustrations. |
  |
AskOxford.com - http://www.askoxford.com/
For questions on English grammar, spelling, and usage; to search a dictionary of words, names or quotations; for help with writing; for crosswords and puzzles. |
  |
The English-to-American Dictionary - http://english2american.com/
A humo(u)rous resource for Americans learning British/Scottish English. |
  |
Longman Web Dictionary - http://www.ldoceonline.com/
Searchable dictionary of contemporary English. |
  |
Die.net Online Dictionary - http://dict.die.net/
Cross-referenced definitions, spelling correction, and searches from WordNet, Webster's, and a variety of specialized sources. Supports regular expressions and the DICT protocol. |
  |
DataSegment.com: Online Dictionary - http://onlinedictionary.datasegment.com/
Find definitions by alphabetical browsing or word lookup. Powered by several print dictionaries. |
  |
HyperDic - http://www.hyperdic.net/
Based on the WordNet lexical database and thesaurus, this dictionary covers only a selection of the most frequent English words. Includes synonyms, antonyms, examples and pronunciation, and links between related words. |
  |
Macmillan English Dictionaries - http://www.macmillandictionary.com/
Resource site for the Macmillan range of dictionaries. |
  |
Plan of an English Dictionary (1747) - http://andromeda.rutgers.edu/~jlynch/Texts/plan.html
Letter written by Samuel Johnson to the Earl of Chesterfield setting out his plan for an English Dictionary. |
  |
Word Sytes - http://word.sytes.org/
Use this online dictionary to search for definitions in WordNet, Webster's and many other databases. |
  |
Vdictionary.com - http://www.vdictionary.com/
Searchable English language dictionary shows results in synonym sets. |
  |
Freesearch Dictionary - http://www.freesearch.co.uk/dictionary
A British English dictionary powered by the Cambridge University Press that contains around 150,000 words. The site offers a search feature or can be browsed by letter. |
  |
The Jargon Database - http://www.jargondatabase.com
A repository of popular neologisms, management speak, and technical terms relevant to various regions, jobs, and cultures, and organized by categories. |
  |
SmartDictionary.com - http://www.smartdictionary.com/
Supports both searching and browsing and encourages user contributions. |