- Abbreviations and acronyms dictionary
Acronym Finder currently has over 750,000 human-edited definitions for acronyms and abbreviations. The Acronym Finder is also able to locate postal codes.
- AskOxford: Free online dictionary resources from Oxford University Press
Free resources from the world's most respected dictionary publisher.
- Definr - incredibly fast dictionary
Quick and very cool!
- Etymology Dictionary
Douglas Harper's compilation of word origins.
- Glossaries and Dictionaries on all subjects
This is a searchable directory of glossaries and subject directories.
- Merriam- Websters' Dictionary
Contains both the abridged and unabridged dictionary as well as the thesaurus.
- One Look Dictionary Search
Find definitions or translations. Be sure to try the useful wildcard search.
- The Phrase Finder
Meanings and Origins of Phrases, Sayings, and Idioms
- Visual Dictionary Online
The Visual Dictionary is an indispensable visual reference that goes beyond object identification to answer questions about function, significance and purpose.
Graphical Dictionary and Thesaurus
- Rhyming Dictionary and Thesaurus (From Poetry.com)
Results can be organized in a number of ways: by syllables, letters, and with or without phrases.
- Your Dictionary.com
This is really a one-stop site containing dictionaries in many languages, free translation service, thesaurus, glossaries for many subjects, and grammar guides. Interesting sections include Word of the Day which you can have emailed to you, puzzles, and Write your name in 10 languages
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