rubbish dump vs dumpsite

rubbish dump and dumpsite both are nouns.

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

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

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

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

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