spatter vs pitter-patter

spatter and pitter-patter both are nouns.

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

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

Other synonyms of spatter include patter, spit, sprinkle.

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

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

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