to sniff out; to get wind of
to sniff around; to snoop around; to nose about
to distinguish by smell; to smell the difference (between); to scent out; to discern (one thing from another); to determine
to sniff out; to catch the scent of
inhalant; medicine that is inhaled
Yama's pole with a human head on the top (able to discern good and evil of the dead); (being a) fuss-pot; complaining about things in the public eye