garbage dump vs rubbish dump

garbage dump and rubbish dump both are nouns.

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

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

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

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

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