pitter-patter vs spatter

pitter-patter and spatter both are nouns.

Word	Noun	Adjective	Verb	Adverb
pitter-patter	Yes	No	Yes	Yes
spatter	Yes	No	Yes	No

As verbs, pitter-patter and spatter are synonyms defined as:

Other synonyms of pitter-patter include patter, spit, sprinkle.

pitter-patter (noun)	spatter (noun)
a series of rapid tapping sounds	the act of splashing a (liquid) substance on a surface
	the noise of something spattering or sputtering explosively

pitter-patter (verb)	spatter (verb)
make light, rapid and repeated sounds	dash a liquid upon or against
rain gently	spot, splash, or soil
	rain gently

pitter-patter (adverb)	spatter (adverb)
describing a rhythmic beating
as of footsteps