tobacco vs snuff

tobacco and snuff both are nouns.

Word	Noun	Adjective	Verb	Adverb
tobacco	Yes	No	No	No
snuff	Yes	Yes	Yes	No

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

tobacco: leaves of the tobacco plant dried and prepared for smoking or ingestion
snuff: finely powdered tobacco for sniffing up the nose

Other hyponyms of tobacco include filler, roll of tobacco, smoke, smoking mixture, shag, Turkish tobacco.

tobacco (noun)	snuff (noun)
leaves of the tobacco plant dried and prepared for smoking or ingestion	sensing an odor by inhaling through the nose
aromatic annual or perennial herbs and shrubs	finely powdered tobacco for sniffing up the nose
	a pinch of smokeless tobacco inhaled at a single time
	the charred portion of a candlewick

tobacco (adjective)	snuff (adjective)
	snuff colored; of a greyish to yellowish brown

tobacco (verb)	snuff (verb)
	inhale (something) through the nose
	sniff or smell inquiringly