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extension - definition and synonyms


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noun extension pronunciation in British English /ɪkˈstenʃ(ə)n/
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  1. 1
    [countable] an extra room or rooms added to a building
    We are building an extension on the back of our house.
    extension to: He has applied for permission to build a single-storey extension to his house.
  2. 2
    [countable] a telephone line that is one of several lines coming from a main line
    What’s your extension?
    I’m on extension 334.
    a new extension number
  3. 3
    [countable] extra time that you are given to finish a piece of work, especially at college or university
    extension on: I’m going to ask for an extension on this essay.
    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.
    3. c.
      extra time that a shop, business, or bar is allowed to stay open
      There was a bar extension until midnight.
      extension to: Local shops have been granted an extension to opening hours.
  4. 4
    [countable] something that you add to a long thin object to make it able to reach somewhere
    This lead 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
  8. 9
    [uncountable] in the UK, a system in which students can take courses at a university without being full-time students
    courses provided through university extension


a fashion trend in which people intentionally wear ordinary, inexpensive, widely-available clothing

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a flower or small bunch of flowers worn on the lapel of a jacket on special occasions

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