evacuation vs voiding

evacuation

noun
  • 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. 

  • Abolition; nullification. 

  • The act of emptying, clearing of the contents, or discharging, including creating a vacuum. 

  • The act of evacuating; leaving a place in an orderly fashion, especially for safety. 

  • Withdrawal of troops or civils from a town, country, fortress, etc. 

  • That which is evacuated or discharged; especially, a discharge by stool or other natural means. 

voiding

noun
  • An act by which something is voided, such as urination. 

  • That which is voided; that which is ejected or evacuated; a remnant; a fragment. 

How often have the words evacuation and voiding occurred in a corpus of books? (source: Google Ngram Viewer )