refuse heap vs rubbish heap

refuse heap and rubbish heap both are nouns.

Word	Noun	Adjective	Verb	Adverb
refuse heap	Yes	No	No	No
rubbish heap	Yes	No	No	No

As nouns, refuse heap and rubbish heap are synonyms defined as:

refuse heap and rubbish heap: an accumulation of refuse and discarded matter

Other synonyms of refuse heap include garbage heap, junk heap, junk pile, scrapheap, trash heap, trash pile.

refuse heap (noun)	rubbish heap (noun)
an accumulation of refuse and discarded matter	an accumulation of refuse and discarded matter