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The Free Online English Dictionary from Macmillan Publishers.

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.

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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.

Free Online English Dictionary & Thesaurus, translation from English to Spanish & Turkish and Spanish to English and other language resources. Conjugation dictionary. Audio pronunciation. Publisher: Cambridge Univeristy Press.