spate vs heap

spate and heap both are nouns.

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

As nouns, spate and heap are synonyms defined as:

spate and heap: (often followed by `of') a large number or amount or extent

spate (noun)	heap (noun)
the occurrence of a water flow resulting from sudden rain or melting snow	a car that is old and unreliable
a sudden forceful flow	a collection of objects laid on top of each other
(often followed by `of') a large number or amount or extent	(often followed by `of') a large number or amount or extent