alphaDictionary * Free English Online Dictionary

Enter a word to search for dictionary web sites that include that word. Enter a pattern consisting of letters and wildcards to search for words. ...
www.alphadictionary.com

Online Dictionary, Encyclopedia and Thesaurus. Free access.

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, ...
www.thefreedictionary.com

OneLook Dictionary Search

Type in a word and search many dictionaries at once. Also has a reverse dictionary and translations.
www.onelook.com

Cambridge International Dictionaries

Free online dictionary from Cambridge University Press.
dictionary.cambridge.org

Dictionary.com

Free online dictionary search, translator, word of the day, crossword puzzles and word games, and vocabulary learning resources for many languages.
dictionary.reference.com

MSN Encarta Dictionary

Online dictionary with over 100000 entries, definitions, and pronunciations.
dictionary.msn.com