voiding vs evacuation

voiding and evacuation both are nouns.

Word	Noun	Adjective	Verb	Adverb
voiding	Yes	No	No	No
evacuation	Yes	No	No	No

As nouns, voiding and evacuation are synonyms defined as:

Other synonyms of voiding include elimination, excreting, excretion.

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