dumpsite vs rubbish dump

dumpsite and rubbish dump both are nouns.

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

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

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

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

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