trash pile vs rubbish heap

trash pile and rubbish heap both are nouns.

Word	Noun	Adjective	Verb	Adverb
trash pile	Yes	No	No	No
rubbish heap	Yes	No	No	No

As nouns, trash pile and rubbish heap are synonyms defined as:

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

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

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