dysphemism vs heap

dysphemism and heap both are nouns.

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

As nouns, heap is a hyponym of dysphemism; that is, heap is a word with a more specific, narrower meaning than dysphemism:

dysphemism: an offensive or disparaging expression that is substituted for an inoffensive one
heap: a car that is old and unreliable

Other hyponyms of dysphemism include bus, jalopy, old man.

dysphemism (noun)	heap (noun)
an offensive or disparaging expression that is substituted for an inoffensive one	a car that is old and unreliable
	a collection of objects laid on top of each other
	(often followed by `of') a large number or amount or extent