excreting vs voiding

excreting and voiding both are nouns.

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

As nouns, excreting and voiding are synonyms defined as:

Other synonyms of excreting include elimination, evacuation, excretion.

excreting (noun)	voiding (noun)
the bodily process of discharging waste matter	the bodily process of discharging waste matter