heap vs jalopy

heap and jalopy both are nouns.

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

As nouns, heap and jalopy are synonyms defined as:

Other synonyms of heap include bus.

heap (noun)	jalopy (noun)
a car that is old and unreliable	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