لیست بهترین دیکشنری های آنلاین  اینترنتی انگلیسی به فارسی و فارسی به انگلیسی

The Free Dictionary
http://www.thefreedictionary.com

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Cambridge
http://dictionary.cambridge.org/dictionary/british
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Oxford Advanced Learner's Dictionary

http://oald8.oxfordlearnersdictionaries.com

Oxford Dictionaries
http://www.oxforddictionaries.com
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Collins

http://www.collinsdictionary.com/dictionary/english
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Definitions
http://www.definitions.net
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 Longman Dictionary of Contemporary English
http//www.ldoceonline.com
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Dictionary.com
http//dictionary.reference.com
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Macmillan Dictionary
http//www.macmillandictionary.com
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Merriam-Webster
http//www.merriam-webster.com
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WordReference.com
http//www.wordreference.com
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Urban Dictionary
http//www.urbandictionary.com
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WordWeb
http//www.wordwebonline.com
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Google Translate
https//translate.google.com
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Farsilookup
http//www.farsilookup.com

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Bing translator
http//www.bing.com/translator
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Fast dictionary
http//fastdic.com