A narrow notch, groove, or opening, especially one for receiving something, as a key in a lock or a coin in a machine. Also: a position in a series or sequence; an appointment or job opening.

In aviation, a slot is an authorization to take off or land at an airport on a specific day and time during a limited period of time. Air traffic controllers assign slots as part of a process known as flow management to control traffic at busy airports and prevent repeated delays caused by too many aircraft trying to take off or land simultaneously.

Also known as fruit machines, these games are similar to traditional slot machines, but feature more advanced graphics and animations. They often offer multiple paylines and bonus rounds, as well as the ability to win progressive jackpots. Some have themes based on TV shows, movies, or other popular topics.

A slot is a dynamic placeholder that either waits for content (a passive slot) or calls out to a renderer to fill it with content (an active slot). Slots and scenarios work together to deliver content to a Web page; however, it is not recommended that you use more than one scenario to feed a single slot. If you do, unpredictable results may occur. To avoid these issues, it is important to plan out your slot strategy before you start playing. Decide how long you want to play and how much money you can afford to lose before beginning.