spittle vs slobber

spittle and slobber both are nouns.

Word	Noun	Adjective	Verb	Adverb
spittle	Yes	No	No	No
slobber	Yes	No	Yes	No

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

spittle: a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches
slobber: saliva spilling from the mouth

Other hyponyms of spittle include dribble, drivel, drool, tobacco juice.

spittle (noun)	slobber (noun)
a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches	saliva spilling from the mouth

spittle (verb)	slobber (verb)
	let saliva drivel from the mouth