Name given to a solid shaped like a regular polyhedron with rounded vertice, used in random experiments where each face has an equal probability do show up when the die is rolled.
Dice are often used in board games to generate random numbers.
A fair die is not loaded; that is, it does not produce a predictable outcome.
The term regular die is sometimes used to refer to a fair die.
Property
The property that characterizes a fair die is that over a very large number of throws, each face will come up a proportionally equal number of times.