foulness vs excretion

foulness and excretion both are nouns.

Word	Noun	Adjective	Verb	Adverb
foulness	Yes	No	No	No
excretion	Yes	No	No	No

foulness (noun)	excretion (noun)
the attribute of having a strong offensive smell	the bodily process of discharging waste matter
(of weather) the badness of the weather	waste matter (as urine or sweat but especially feces) discharged from the body
a state characterized by foul or disgusting dirt and refuse
disgusting wickedness and immorality