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Definition of acute:

  1. Attended with symptoms of some degree of severity, and coming speedily to a crisis; - opposed to chronic; as, an acute disease.
  2. Having nice discernment; perceiving or using minute distinctions; penetrating; clever; shrewd; - opposed to dull or stupid; as, an acute observer; acute remarks, or reasoning.
  3. Having nice or quick sensibility; susceptible to slight impressions; acting keenly on the senses; sharp; keen; intense; as, a man of acute eyesight, hearing, or feeling; acute pain or pleasure.
  4. High, or shrill, in respect to some other sound; - opposed to grave or low; as, an acute tone or accent.
  5. Sharp at the end; ending in a sharp point; pointed; - opposed to blunt or obtuse; as, an acute angle; an acute leaf.
  6. To give an acute sound to; as, he acutes his rising inflection too much.


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