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Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.

The online guide to better English in plain English, with articles for grammarphobes and grammarphiles.

The largest and most trusted free online thesaurus. Quickly find accurate and up-to-date synonyms, antonyms, and related words at Thesaurus.com. Synonym dictionary, antonym dictionary, words synonyms.

Vocabulary.com helps you learn new words, play games that improve your vocabulary, and explore language.

World Wide Words. More than 2200 pages on the origins, history, evolution and idiosyncrasies of the English language worldwide. New words and words in the news are regularly featured.

The Free Online English Dictionary from Macmillan Publishers.

Welcome to AudioEnglish.org: A huge collection of English-learning resources and online English courses with audio: Practical English, Accounting English, Telephone English, Online Dictionary and much more

Free online English dictionary from Oxford, plus thesaurus, word of the day, resume examples, letter writing, and English grammar

Wordnik: Dictionary Definitions and Example Sentences

Free online English dictionary, dictionaries and grammars for 350 languages, crossword puzzles, word games, language jokes, and a daily Good Word by linguist Robert Beard (Dr. Goodword).