from
The Collaborative International Dictionary of English v.0.48
Casino \Ca*si"no\, n.; pl. E. {Casinos}, It. {Casini}. [It.
casino, dim. of casa house, fr. L. casa cottage. Cf.
{Cassing}.]
1. A small country house.
[1913 Webster]
2. A building or room used for meetings, or public
amusements, for dancing, etc., sometimes having gambling
tables or devices.
[1913 Webster +PJC]
3. A game at cards. See {Cassino}.
[1913 Webster]
4. a business establishment for which the primary business is
gambling, having various types of gambling tables, such as
blackjack or roulette, and usually also slot machines, and
sometimes other forms of gambling, such as poker; also,
the main room of such an establishment where the gambling
is conducted; as, the Trump casinos in Atlantic City.
[PJC]