What is the meaning of Snuff?

Finely ground or pulverized tobacco intended for use by being sniffed or snorted into the nose.

Fine-ground or minced tobacco, dry or moistened, intended for use by placing a pinch behind the lip or beneath the tongue; see also snus.

A snort or sniff of fine-ground, powdered, or pulverized tobacco.

The act of briskly inhaling by the nose; a sniff, a snort.

Resentment or skepticism expressed by quickly drawing air through the nose; snuffling; sniffling.

Snot, mucus.

Smell, scent, odour.

To inhale through the nose.

To turn up the nose and inhale air, as an expression of contempt; hence, to take offence.

To drug (a person) with a mixture of snuff and beer.

The burning part of a candle wick, or the black, burnt remains of a wick (which must be periodically removed).

Leavings in a glass after drinking; heeltaps.

A murder.

A film or video clip which involves a real non-acted murder.

To extinguish a candle or oil-lamp flame by covering the burning end of the wick until the flame is suffocated.

To trim the burnt part of a candle wick.

To snuff out; to extinguish; to put out; to kill.

snuff film

Source: wiktionary.org