scrapheap vs trash heap

scrapheap and trash heap both are nouns.

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

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

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

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

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