the.com/evacuation

means The organized clearing of people from a place of danger, or the removal of something (like air or contents) to leave a space empty.

from From Latin evacuare, 'to empty out' — built from ex- ('out') plus vacuus ('empty,' the same root that gives us vacuum and vacant. Originally it was used in English for literal emptying — draining fluids, clearing bowels in old medical texts — before it widened to mean clearing people from a place of danger.