Did you know?

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

revolution

 - definition
 
 
 
Close

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.

Close

Thesaurus

The thesaurus of synonyms and related words is fully integrated into the dictionary entries. Click on the T button in an entry to review the synonyms and related words for that meaning.

more
noun American English pronunciation: revolution /ˌrevəˈluʃ(ə)n/ 
Word Forms
Close
singularrevolution
pluralrevolutions
  1. 1
    [countable/uncountable] a situation in which people completely change their government or political system, usually by force

    the French/Russian Revolution

    a group committed to promoting revolution

  2. 2
    [countable] a sudden or major change, especially in ideas or methods

    a sexual/cultural revolution

    revolution in:

    A revolution in information technology is taking place.

  3. 3
    [countable/uncountable] the movement of something in a circle around something else, either once or continuously

    the revolution of the Earth around the Sun

    1. a.
      [countable] one complete turn made by something moving in a circle around a fixed point

      Engine speed is measured in revolutions per minute.

dark pool

a method of financial trading in which share prices are hidden and not openly available to the public

BuzzWord Article

Word of the Day

bottom line

the amount of money that a business makes or loses

Open Dictionary

subtweet

to post a tweet, usually a negative one, that mentions a person without using the @ sign, so that they will not see the message on their Twitter feed …

add a word

Blog

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