An organized, phased, and supervised withdrawal, dispersal, or removal of civilians from dangerous or potentially dangerous areas, and their reception and care in safe areas. 

c. 1400, "discharge from the body" (originally mostly of blood), from Old French évacuation and directly from Late Latin evacuationem (nominative evacuatio), noun of action from past partici [..]

Shitting and puking simultaneously; a complete release of bodily waste; everybody out!

The movement of employees, visitors and contractors from a site and/or building to a safe place (assembly area) in a controlled and monitored manner at time of an event.

removal of people, organisms, or objects from an endangered area.

emptying: the act of removing the contents of something the act of evacuating; leaving a place in an orderly fashion; especially for protection elimination: the bodily process of discharging waste mat [..]

To move out or remove from a threatened area or place. The term used for the removal of all people of Japanese ancestry from the “protected area” on the Pacific coastline to places at least 160 kilome [..]

emptying (pop)

the removal of people from an area, generally in attempt to avoid a threatened disaster (or escape from an actual one)

(n) the act of removing the contents of something(n) the act of evacuating; leaving a place in an orderly fashion; especially for protection(n) the bodily process of discharging waste matter

A condition requiring all passengers/customers and employees to depart a transit vehicle or transit property due to the presence of imminent danger. This condition does not include transfer from one v [..]

The process of removing moisture and other gases from a refrigeration system.

Removal of personnel from a dangerous area, in particular, a HAZMAT incident, burning building, or other emergency. Also refers to act of removing firefighters from a structure in danger of collapsing. 

The concept of preventing an opponent's stack from making a certain move by moving your stack away from the target space which it can land on.

 It’s what it sounds like.  It’s when volunteers are removed from a region or country due to emergency circumstances, such as a natural disaster or terrorism threats.

removal of passengers in terminal (such as from carriers of aerial lift) in manner other than normal discharge.

The removal of gases from a system.

The act of emptying, clearing of the contents, or discharging, including creating a vacuum. Withdrawal of troops or civils from a town, fortress, etc. Voidance of any matter by the natural passa [..]

The short term transfer of people from their homes or workplaces because of a threatened or actual hazard impact.