refuse heap vs garbage heap

refuse heap and garbage heap both are nouns.

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

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

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

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

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