Dice

dice, singular die, small objects (polyhedrons) used as implements for gambling and the playing of social games. The most common form of die is the cube, with each side marked with from one to six small dots (spots). The spots are arranged in conventional patterns and placed so that spots on opposite sides always add up to seven: one and six, two and five, three and four. There are, however, many dice with differing arrangements of spots or other face designs, such as poker dice and crown and anchor dice, and many other shapes of dice with 4, 5, 7, 8, 10, 12, 16, and 20 or more sides. Dice are generally used to generate a random outcome (most often a number or a combination of numbers) in which the physical design and quantity of the dice thrown determine the mathematical probabilities.

In most games played with dice, the dice are thrown (rolled, flipped, shot, tossed, or cast), from the hand or from a receptacle called a dice cup, in such a way that they will fall at random. The symbols that face up when the dice come to rest are the relevant ones, and their combination decides, according to the rules of the game being played, whether the thrower (often called the shooter) wins, loses, scores points, continues to throw, or loses possession of the dice to another shooter. Dice have also been used for at least 5,000 years in connection with board games, primarily for the movement of playing pieces.