smell vs snuff

smell and snuff both are nouns.

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

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

Other hyponyms of smell include sniff.

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

Other hyponyms of smell include sniff, whiff, nose, scent, wind, snuffle, get a noseful, get a whiff.

smell (noun)	snuff (noun)
the act of perceiving the odor of something	sensing an odor by inhaling through the nose
any property detected by the olfactory system	finely powdered tobacco for sniffing up the nose
the faculty that enables us to distinguish scents	a pinch of smokeless tobacco inhaled at a single time
the sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form	the charred portion of a candlewick
the general atmosphere of a place or situation and the effect that it has on people

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

smell (verb)	snuff (verb)
become aware of not through the senses but instinctively	inhale (something) through the nose
emit an odor	sniff or smell inquiringly
inhale the odor of; perceive by the olfactory sense
smell bad
have an element suggestive (of something)