presbyter vs elder

presbyter and elder both are nouns.

Word	Noun	Adjective	Verb	Adverb
presbyter	Yes	No	No	No
elder	Yes	Yes	No	No

As nouns, elder is a hypernym of presbyter; that is, elder is a word with a broader meaning than presbyter:

presbyter (noun)	elder (noun)
an elder in the Presbyterian Church	a person who is older than you are
	any of various church officers
	any of numerous shrubs or small trees of temperate and subtropical Northern Hemisphere having white flowers and berrylike fruit

presbyter (adjective)	elder (adjective)
	used of the older of two persons of the same name especially used to distinguish a father from his son