trash heap vs refuse heap

trash heap and refuse heap both are nouns.

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

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

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

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

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