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block

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noun [countable] American English pronunciation: block /blɑk/ 
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singularblock
pluralblocks
  1. 1
    a solid piece of wood, stone, ice, etc. with straight sides

    The baby was playing with wooden blocks.

    block of:

    It's amazing to think that this huge statue was carved from a single block of marble.

  2. 3
    an amount of something, or a number of individual things that are considered together as a single object
    block of:

    The company buys blocks of seats from airlines, then sells them to the public.

    block of:

    You can move blocks of text on-screen using the mouse.

    1. a.
      computing an amount of information considered as one unit, used when writing computer programs
      block of:

      The hard disk contains a block of data known as the "boot."

  3. 4
    a continuous period of time

    We need to find a two-hour block when we are all free for this seminar.

  4. 5
    a building that is part of a larger building or group of buildings

    The prison's administration block overlooks the exercise yard.

    1. a.
      a large building with a lot of different levels

      There's a unit available in the apartment block where I live.

  5. 8
    [usually singular] something that stops you from doing something or being successful

    The issue of vacation pay was the major block in reaching an agreement.

  6. 9
    [usually singular] a short time when you are unable to think clearly or remember something that you usually know

    I had a sudden block and couldn't remember his name.

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