probability - definition and synonyms


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  1. 1
    [singular/uncountable] a measure of how likely something is to happen
    probability of:

    We have to be prepared for the probability of a further fall in profits.

    probability that:

    There was a strong probability that the company had a record of the conversation.

    1. a.
      [countable] something that is likely to happen or be true

      They were ignoring what was now a probability.

  2. 2
    [countable/uncountable] maths a calculation of how likely something is

    There is a 20% probability that you could develop the cancer.

    the laws of probability