elimination vs excreting

elimination and excreting both are nouns.

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

As nouns, elimination and excreting are synonyms defined as:

elimination and excreting: the bodily process of discharging waste matter

Other synonyms of elimination include evacuation, excretion, voiding.

elimination (noun)	excreting (noun)
the murder of a competitor	the bodily process of discharging waste matter
the act of removing or getting rid of something
the act of removing an unknown mathematical quantity by combining equations
analysis of a problem into alternative possibilities followed by the systematic rejection of unacceptable alternatives
the bodily process of discharging waste matter