1. The act of emptying, clearing of the contents, or discharging, including creating a vacuum.
  2. Withdrawal of troops or civils from a town, fortress, etc.
  3. Voidance of any matter by the natural passages of the body or by an artificial opening; defecation; also, a diminution of the fluids of an animal body by cathartics, venesection, or other means.
  4. The act of evacuating; leaving a place in an orderly fashion; especially for protection
  5. That which is evacuated or discharged; especially, a discharge by stool or other natural means.
  6. Abolition; nullification.

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