Dictionaries in the Yahoo! Directory

Dictionary of American Regional English
Online American English dictionary, specializing in local slang and regional words and phrases.
polyglot.lss.wisc.edu/dare/dare.html
definr
Very fast and simple dictionary which suggests possible words as you type. Good for the spelling-challenged.
definr.com
Omnificent English Dictionary In Limerick Form, The (OEDILF) [read review]
Dedicated to writing at least one limerick for each and every word in the English dictionary.
www.oedilf.com/db/Lim.php
WordWeb Online
Online dictionary and thesaurus which covers American, British, Australian, Canadian, and Asian English spellings and words.
www.wordwebonline.com
CoolDictionary.Com: Audible Webster Dictionary
Online version of Webster's American Dictionary, with audio clips of the correct pronunciation of words and quotes.
www.cooldictionary.com
Grandiloquent Dictionary
Collecting and defining the most rare, obscure, and pretentious words in the English language. Available in HTML and PDF formats.
www.islandnet.com/~egbird/dict/dict.htm
Hypertext Webster Gateway
Online version of Webster's Dictionary, searchable by word or phrase.
www.bennetyee.org/http_webster.cgi?
Word Assault
Searches multiple English dictionaries for words and phrases. Includes thesaurus, place names, computing terms, a Bible dictionary, and the CIA World Factbook.
www.wordassault.com
Datasegment Online Dictionary
Online dictionary allowing users to search and browse word definitions from multiple English dictionaries and a thesaurus.
onlinedictionary.datasegment.com
iTools Language Tools
Online dictionary service that includes a thesaurus, industry-specific terminology, crossword puzzle and Scrabble help, and translation tools.
www.itools.com/lang
Yahoo! Reference
Find an online encyclopedia, quotations, and other fact-finding tools at Yahoo! Reference. Search for dictionary definitions, spelling help, thesaurus synonyms, maps, flags, and other answers.
education.yahoo.com/reference
BambooWeb Dictionary
Online dictionary and encyclopedia providing articles and information on a wide variety of topics. Browse encyclopedia entries by subject, or search for information by key words.
www.bambooweb.com
ObjectGraph Dictionary
Free online dictionary that suggests words and phrases as you type in the search box.
www.objectgraph.com/dictionary
Definitions.net
Online dictionary providing instant lookup and translations of word and phrase definitions, complete with images.
www.definitions.net
LookWAYup
Online multilingual dictionary and thesaurus search tool that can be embedded into a web page.
www.lookwayup.com
Merriam-Webster's Open Dictionary [read review]
Submit and share entries that aren't already in the online dictionary.
www3.merriam-webster.com/opendictionary
Dictionaryofsign.com
Online international dictionary of sign language. Allows users to send in their own video clips of sign language for use in the dictionary.
www.dictionaryofsign.com
Century Dictionary Online
Searchable American English dictionary, featuring JPEG images of the correct pages in the print version of the Century Dictionary.
www.global-language.com/CENTURY
Phoebe
Online dictionary providing word definitions and links to additional resources.
www.phoebe2.com
eLook.org Dictionary
Online dictionary provides definitions, synonyms, and related words.
www.elook.org/dictionary