Did you know?

Click any word in a definition or example to find the entry for that word


 - definitions and thesaurus

What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.



The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

noun planet pronunciation in British English /ˈplænɪt/ 
Word Forms
  1. 1
    [countable] a very large round object that moves around the Sun or another star

    planet Earth

    Mars is sometimes known as the red planet.

  2. 2

    the planet

    the planet Earth and everyone and everything on it: used, for example, when you are talking about the environment

    policies to protect the future of the planet

    Synonyms and related words for this sense of planet



web content which is specifically intended to make Facebook users click the 'Like' button associated with it

BuzzWord Article

Open Dictionary


the possibility of Greece leaving the Eurozone …

add a word


A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog