behind vs excrement

behind and excrement both are nouns.

Word	Noun	Adjective	Verb	Adverb
behind	Yes	Yes	No	Yes
excrement	Yes	No	No	No

behind (noun)	excrement (noun)
the fleshy part of the human body that you sit on	waste matter (as urine or sweat but especially feces) discharged from the body

behind (adjective)	excrement (adjective)
having the lower score or lagging position in a contest

behind (adverb)	excrement (adverb)
in or to or toward the rear
remaining in a place or condition that has been left or departed from
in debt
in or into an inferior position
showing a time that is earlier than the actual time