douse vs sluice

douse is not a noun while sluice is a noun.

Word	Noun	Adjective	Verb	Adverb
douse	No	No	Yes	No
sluice	Yes	No	Yes	No

As verbs, sluice is a hyponym of douse; that is, sluice is a word with a more specific, narrower meaning than douse:

Other hyponyms of douse include brine, bedraggle, draggle, bate, ret, flush.

douse (noun)	sluice (noun)
	conduit that carries a rapid flow of water controlled by a sluicegate

douse (verb)	sluice (verb)
cover with liquid; pour liquid onto	irrigate with water from a sluice
slacken	draw through a sluice
lower quickly	transport in or send down a sluice
immerse briefly into a liquid so as to wet, coat, or saturate	pour as if from a sluice
dip into a liquid
wet thoroughly
put out, as of a candle or a light