saturate vs stuff

saturate is not a noun while stuff is a noun.

Word	Noun	Adjective	Verb	Adverb
saturate	No	No	Yes	No
stuff	Yes	No	Yes	No

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

Other hyponyms of saturate include medicate, alcoholise, alcoholize, imbue, soak, ammonify, thoriate, charge, drench, imbrue.

saturate (noun)	stuff (noun)
	miscellaneous unspecified objects
	unspecified qualities required to do or be something
	a critically important or characteristic component
	senseless talk
	information in some unspecified form
	informal terms for personal possessions
	the tangible substance that goes into the makeup of a physical object

saturate (verb)	stuff (verb)
cause (a chemical compound, vapour, solution, magnetic material) to unite with the greatest possible amount of another substance	fill with a stuffing while cooking
infuse or fill completely	fill tightly with a material
	treat with grease, fill, and prepare for mounting
	overeat or eat immodestly; make a pig of oneself
	cram into a cavity
	obstruct
	press or force