Online Dictionary

  • Macmillan English Dictionary Online

    The perfect free online English dictionary – a one-stop reference for English speakers around the world.

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  • Free Online Thesaurus


    The free online thesaurus is fully integrated into dictionary entries and shows useful sets of synonyms and related words.

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  • Learn English, live English, love English


    The Macmillan Dictionary Blog is a must for anyone with an interest in the changing face of the English language.

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  • BuzzWord


    Every month, an in-depth article looks at a new or current word in the English language.

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  • Word fo the Day

    Word of the Day

    Sign up for the RSS feed of our Word of the Day feature over on the blog.

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  • Open Dictionary

    Open Dictionary

    Your chance to contribute: add your word to our record of English as it is used today.

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  • Double Click

    Double Click

    With the integrated Double Click, you can double-click or select text on any page to see a definition in Macmillan Dictionary.

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  • Gadgets


    A selection of ways to enable quick access to dictionary definitions directly from your browser or webpage.

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  • Facebook: What's your English?


    We’re keeping up with English in all the ways available to us. Join our ‘What’s your English?’ movement on Facebook.

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  • Twitter: @macdictionary


    Follow @macdictionary to keep up to date with Macmillan Dictionary and English language news.

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  • YouTube


    Our dedicated YouTube channel brings you inspiring videos about the English language.

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