dumpsite vs garbage dump

dumpsite and garbage dump both are nouns.

Word	Noun	Adjective	Verb	Adverb
dumpsite	Yes	No	No	No
garbage dump	Yes	No	No	No

As nouns, dumpsite and garbage dump are synonyms defined as:

dumpsite and garbage dump: a piece of land where waste materials are dumped

Other synonyms of dumpsite include dump, rubbish dump, trash dump, waste-yard, wasteyard.

dumpsite (noun)	garbage dump (noun)
a piece of land where waste materials are dumped	a piece of land where waste materials are dumped