Did you know?

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

double

 - 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
verb American English pronunciation: double /ˈdʌb(ə)l/ 
Word Forms
Close
present tense
I/you/we/theydouble
he/she/itdoubles
present participledoubling
past tensedoubled
past participledoubled
  1. 1
    [intransitive] to become twice as big, twice as much, or twice as many

    The number of people out of work has doubled in the last five years.

    double in size/amount/price etc.:

    Their house has doubled in value since they bought it.

    1. a.
      [transitive] to increase something so that it is twice as big, twice as much, or twice as many

      The government is threatening to double the tax on liquor.

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 gear

the gear that you use for driving a vehicle very slowly

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