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extension - definition and synonyms


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noun extension pronunciation in American English /ɪkˈstenʃ(ə)n/
Word Forms
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  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

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