Cage (blackjack)
Area of casino where cashier is based and chip buying and selling
takes place.
Usually surrounded by metal bars or other high security measures.
In many ways, the cage resembles a bank.
Cage (poker)
A room or an area, often behind a glass or behind bars, from
which the
cage person buys and sells chips. Also, window.
Cage (roulette)
A booth or room where the casino cashier resides. Here, you
can exchange chips for cash (or vice versa),
cash-out coins, place front money, etc. It is called a cage
because it is usually enclosed by bars.