magnitude - definition and synonyms


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  1. 1
    [uncountable] great size, importance, or effect

    We hadn’t grasped the magnitude of the task we were facing.

    a world crisis of considerable magnitude

  2. 2
    [countable] the strength of an earthquake, measured with numbers from 1 to 10, where 10 is the most powerful
  3. 3
    [countable] astronomy the brightness of a star, shown as a number