Did you know?

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

rein - definition and synonyms


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 [countable] rein pronunciation in British English /reɪn/
Word Forms
  • Facebook
  • Twitter
  1. 2


    [plural] control of a company, government, or organization
    the reins of power/government/state: It’s his deputy who really holds the reins of power.
    hand/take over the reins (=give someone control of something or take control of it): Hiroshi Okuda took over the reins of Toyota in August 1995.
    hold the reins (=be the person who controls something): the designers who hold the creative reins at Dior fashion house


a meal served in the evening which consists of foods traditionally eaten at breakfast

BuzzWord Article

Open Dictionary

troll factory

a company that pays its employees to write online comments in favour or against somebody or something posing as ordinary Internet users

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