baptism vs sprinkling

baptism and sprinkling both are nouns.

Word	Noun	Adjective	Verb	Adverb
baptism	Yes	No	No	No
sprinkling	Yes	No	No	No

As nouns, sprinkling is a hyponym of baptism; that is, sprinkling is a word with a more specific, narrower meaning than baptism:

Other hyponyms of baptism include affusion, aspersion, christening, immersion.

baptism (noun)	sprinkling (noun)
a Christian sacrament signifying spiritual cleansing and rebirth	the act of sprinkling water in baptism (rare)
	the act of sprinkling or splashing water
	a light shower that falls in some locations and not others nearby
	a small number (of something) dispersed haphazardly