rubbish dump vs garbage dump

rubbish dump and garbage dump both are nouns.

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

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

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

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

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