Did you know?

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

extension - definition and synonyms

 
 
 
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. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

more
noun extension pronunciation in American English /ɪkˈstenʃ(ə)n/
Word Forms
Close
singularextension
pluralextensions
  • Facebook
  • Twitter
  1. 1
    [countable] extra time that you are given to finish a piece of work, especially at college
    extension on: I’m going to ask for an extension on this paper.
    1. a.
      extra time that you are given to pay money that you owe
      extension on: Will the bank give you an extension on the loan?
    2. b.
      extra time that you are given to use a particular legal document or right
      a visa extension
      extension to: Brady wants a two-year extension to his contract.
  2. 2
    [countable] a telephone line that is one of several lines coming from a main line
    What’s your extension?
    I’m at extension 334.
    a new extension number
  3. 3
    [countable] an extra room or rooms added to a building
    The company is building an extension onto the side of the factory.
    extension to: He has applied for permission to build a single-story extension to his house.
  4. 4
    [countable] something that you add to a long thin object to make it able to reach somewhere
    This cord isn’t long enough – do you have an extension?
  5. 5
    [countable] something that develops from a particular custom, activity, idea, etc.
    extension of: Business entertainment seems a natural extension of Japan’s gift-giving culture.
    He sees local history as an extension of family history.
  6. 6
    [uncountable] formal the action of stretching part of your body
    His leg was now capable of full extension.
  7. 7
    [singular/uncountable] an increase in the power of something
    extension of: the further extension of state control

Open Dictionary

troll factory

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

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