trash dump vs rubbish dump

trash dump and rubbish dump both are nouns.

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

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

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

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

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