evacuation vs voidance

evacuation and voidance both are nouns.

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

As nouns, evacuation and voidance are synonyms defined as:

Other synonyms of evacuation include emptying.

evacuation (noun)	voidance (noun)
the act of removing the contents of something	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