To draw air audibly up the nose; to snuff; -- sometimes done as a gesture of suspicion, offense, or contempt. So ye grow squeamish, gods, and sniff at heaven. M. Arnold.
To draw in with the breath through the nose; as, to sniff the air of the country.
To perceive as by sniffing; to snuff, to scent; to smell; as, to sniff danger.
The act of sniffing; perception by sniffing; that which is taken by sniffing; as, a sniff of air.
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