sniff

nouns

sensing an odor by inhaling through the nose
sniff, snuff

verbs

perceive by inhaling through the nose
"sniff the perfume"
sniff, whiff
is derived from
sniffer
see also
sniff out
inhale audibly through the nose
"the sick student was sniffling in the back row"
sniff, sniffle
is derived from
sniffer