sniff vs whiff

sniff and whiff both are nouns.

Word	Noun	Adjective	Verb	Adverb
sniff	Yes	No	Yes	No
whiff	Yes	No	Yes	No

As verbs, sniff and whiff are synonyms defined as:

sniff (noun)	whiff (noun)
sensing an odor by inhaling through the nose	a strikeout resulting from the batter swinging at and missing the ball for the third strike
	a lefteye flounder found in coastal waters from New England to Brazil
	a short light gust of air

sniff (verb)	whiff (verb)
inhale audibly through the nose	utter with a puff of air
perceive by inhaling through the nose	smoke and exhale strongly
	strike out by swinging and missing the pitch charged as the third
	drive or carry as if by a puff of air
	perceive by inhaling through the nose