scrapheap vs heap

scrapheap and heap both are nouns.

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

As nouns, heap is a hypernym of scrapheap; that is, heap is a word with a broader meaning than scrapheap:

Other hypernyms of scrapheap include agglomerate, cumulation, cumulus, mound, pile.

scrapheap (noun)	heap (noun)
pile of discarded metal	a car that is old and unreliable
an accumulation of refuse and discarded matter	a collection of objects laid on top of each other
	(often followed by `of') a large number or amount or extent