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revision

n.
US //ɹiˈvɪʒən// UK //ɹɪvˈɪʒən// re·vi·sion
  1. 1 changing or improving (n.)
    B2 Upper Intermediate

    the act of changing something to improve it or make it more accurate.

    the process of amending, correcting, or improving a document, policy, or idea.

    Example

    The teacher asked for a revision of the essay to fix the grammar mistakes.

    Example

    The legal team suggested a thorough revision of the contract terms to ensure all parties were protected under the new regulations.

    Usage

    Often used with the preposition 'of'.

  2. 2 a new version (n.)
    B2 Upper Intermediate

    a new or updated version of something, like a book or a plan.

    a specific version of a text or object that has been modified from the original.

    Example

    The latest revision of the software fixed the bugs from last month.

    Example

    The third revision of the textbook includes two additional chapters on digital marketing strategies.

    Usage

    Countable in this sense.

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  1. 3 studying for exams (n.)
    B1 Intermediate British English

    the work you do to prepare for an exam by looking at your notes again.

    the process of reviewing previously learned material in preparation for an examination.

    Example

    I have a lot of revision to do before my maths exam on Tuesday.

    Example

    Students are encouraged to begin their revision several weeks before the final assessments to avoid last-minute cramming.

    Usage

    Usually uncountable when referring to the general activity of studying.

    Teacher's tip

    This is the most common sense in the UK and Australia; American students almost exclusively use 'review' for this activity.

    Pitfall
    I need to do some reviews for my history test.
    I need to do some revision for my history test.

    In British English, 'revision' is the standard term for studying old material before a test; 'review' is more common in American English.

Etymology 1

Borrowed from French révision, from Latin revīsiō.

Etymology 2

From re- + vision.

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