Cases of word usage

1) a sudden burst of flame or light; a sudden idea, realization etc (flash)

2) a loose, sleeveless cloak; covering; a metal cover fixed round the flame of a light from gas (mantle)

3) a piece of cloth used in pairs for sleeping between; a flat, thin piece (of a material); a wide expanse (of ice, snow, flame etc) (sheet)

4) powdered tobacco to be taken up into the nose by sniffing; to put out the flame of a candle (snuff)