breaking wind vs excretion

breaking wind and excretion both are nouns.

Word	Noun	Adjective	Verb	Adverb
breaking wind	Yes	No	No	No
excretion	Yes	No	No	No

breaking wind (noun)	excretion (noun)
a reflex that expels intestinal gas through the anus	the bodily process of discharging waste matter
	waste matter (as urine or sweat but especially feces) discharged from the body