WordNet sense 1 (a light shower that falls in some locations and not others nearby):

scattering, sprinkling

WordNet sense 2 (rain gently):

patter, pitter-patter, spatter, spit

WordNet sense 3 (distribute loosely):

disperse, dot, dust, scatter

WordNet sense 4 (cause (a liquid) to spatter about, especially with force):

splash, splosh

WordNet sense 5 (the act of sprinkling or splashing water):

sparge

WordNet sense 6 (scatter with liquid; wet lightly):

besprinkle