domino

a loose cloak or robe with wide sleeves and hood, worn with a mask at masquerades
a small mask, generally black, for the eyes; half mask
a person dressed in such a cloak or mask
a small, oblong piece of wood, plastic, etc. marked into halves, each half being blank or having usually from one to six dots marked on it
a game played with a number of such pieces, usually 28, which the players must match according to the dots on each half

Domino, Fats (born Antoine Domino, Jr.) 1928-; U.S. rock-and-roll pianist & composer

See domino in American Heritage Dictionary 4