excretory product vs behind

excretory product and behind both are nouns.

Word	Noun	Adjective	Verb	Adverb
excretory product	Yes	No	No	No
behind	Yes	Yes	No	Yes

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

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

excretory product (adverb)	behind (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