Definition:Die

A die (plural: dice) is a device for generating random numbers, traditionally between 1 and 6.

They have been around for at least five thousand years, and have formed the basis of humanity's love-affair with gambling throughout history. Even the clothing of Jesus Christ was reportedly gambled for at his crucifixion in a dice game.

A die usually consists of a cube on which each face denotes a different number, usually (again) from 1 to 6.

The idea is that when you roll it, or throw it, or otherwise cause it to land upon a flattish surface, one of the sides will be face-up, and (with a good design of die) which side that is can not be precisely predicted.

Hence it serves as a generator of a discrete probability space with equiprobable outcomes.

By using dice with different shapes (usually either platonic solids or prisms), a different probability space can be generated.