Definition of snuff:
(n) :
fine-ground or pulverized tobacco intended for use by being
sniffed or
snorted into the nose; fine-ground or minced tobacco moistened and intended for use by placing a pinch ('placing a
pinch' =
dipping) behind the lip or beneath the tongue
(v) :
to
inhale through the nose; to extinguish a candle or
oil-lamp flame by covering the burning end of the
wick until the flame is suffocated
(adj) :
relating to
death