The Collaborative International Dictionary
Great cassino
Cassino \Cas*si"no\, n. [It. casino a small house, a gaming house. See casino.] A game at cards, played by two or more persons, usually for twenty-one points.
Great cassino, the ten of diamonds.
Little cassino, the two of spades.
Wiktionary
great cassino
n. (context card games English) The ten of diamonds in the game of cassino.