trash pile vs scrapheap

trash pile and scrapheap both are nouns.

Word	Noun	Adjective	Verb	Adverb
trash pile	Yes	No	No	No
scrapheap	Yes	No	No	No

As nouns, trash pile and scrapheap are synonyms defined as:

trash pile and scrapheap: an accumulation of refuse and discarded matter

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

trash pile (noun)	scrapheap (noun)
an accumulation of refuse and discarded matter	pile of discarded metal
	an accumulation of refuse and discarded matter