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Longman English Dictionary Online
Longman English Dictionary is the leading dictionary for learners of English of all ages and levels who want to learn more about English: definition, idioms, examples and more.
http://www.ldoceonline.com
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Oxford Learner's Dictionaries
The largest and most trusted free online dictionary for learners of British and American English with definitions, pictures, example sentences, synonyms, antonyms, word origins, audio pronunciation, and more. Look up the meanings of words, abbreviations, phrases, and idioms in our free English Dictionary.
http://www.oxfordlearnersdictionaries.com/us
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Oxford Dictionaries - Dictionary, Thesaurus, & Grammar
Free online english dictionary from Oxford Dictionaries. Translate from English to Spanish, French, Italian, and German with bilingual dictionaries.
http://www.oxforddictionaries.com/us
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Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
The World's most comprehensive free online dictionary, thesaurus, and encyclopedia with synonyms, definitions, idioms, abbreviations, and medical, financial, legal specialized dictionaries.
http://www.thefreedictionary.com
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Collins English Dictionary - Always Free Online
The official Collins English Dictionary online. Comprehensive and authoritative, rely on Collins for up-to-date English with insights into language trends and usage.
http://www.collinsdictionary.com/dictionary/english
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Macmillan Dictionary - Free English Dictionary and Thesaurus Online
The Free Online English Dictionary from Macmillan Publishers.
http://www.macmillandictionary.com/us
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Dictionary and Thesaurus - Merriam-Webster
Free online dictionary, thesaurus, spanish-english and medical dictionaries, audio pronunciations, Word of the Day, word games, and many more high-quality Merriam-Webster language resources.
http://www.merriam-webster.com
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Find the Meanings and Definitions of Words at Dictionary
The world's most popular dictionary and thesaurus with definitions, synonyms, antonyms, idioms, word origins, quotes, audio pronunciations, example sentences and Word of the Day!
http://www.dictionary.com
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Cambridge English Dictionary: Definitions & Meanings
The most popular dictionary and thesaurus. Definitions & meanings of words in English with examples, synonyms, pronunciations and translations.
http://dictionary.cambridge.org/us/dictionary/english/
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Oxford English Dictionary
The OED is the definitive record of the English language, featuring 600,000 words, 3 million quotations, and over 1,000 years of English.
http://www.oed.com
