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 conspiracy pronunciation in British English /kənˈspɪrəsi/
Word Forms
  1. 1
    [countable] a secret plan by a group of people to do something bad or illegal, especially in politics
    conspiracy to do something:

    evidence of conspiracies to assassinate the president

    conspiracy against:

    a conspiracy against the party leadership

  2. 2
    [uncountable] legal the legal offence of planning a serious crime

    The charges against them include conspiracy to smuggle heroin.


… a teaching method in which groups of children learn independently using a computer linked to the internet

BuzzWord Article

Open Dictionary


a derogatory word used for referring to people in the banking and investment industry who are thought of as taking serious risks in order to increase their own earnings …

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