behind vs hind end

behind and hind end both are nouns.

Word	Noun	Adjective	Verb	Adverb
behind	Yes	Yes	No	Yes
hind end	Yes	No	No	No

As nouns, behind and hind end are synonyms defined as:

behind (noun)	hind end (noun)
the fleshy part of the human body that you sit on	the fleshy part of the human body that you sit on

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

behind (adverb)	hind end (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