Evacuation /(?)/

E·vac·u·a·tion

Evacuation

n.
  1. The act of emptying, clearing of the contents, or discharging. (Mil.)
  2. That which is evacuated or discharged; especially, a discharge by stool or other natural means.
  3. Abolition; nullification. [Obs.]

Phrases & Compounds
Evacuation day
the anniversary of the day on which the British army evacuated the city of New York, November 25, 1783.