A narrow notch, groove or opening, as in a keyway in a piece of machinery, a slit for a coin in a vending machine, etc.

In airport coordination, a slot is the authorization to take off or land at a congested air traffic control facility on a particular day and time during a specified period. The concept is a way to avoid repeated delays caused by too many planes trying to land or take off simultaneously and to reduce fuel burn from unnecessary flying.

A slot in a computer is a place for an execution pipeline to run. In very long instruction word (VLIW) computers, the term is used for the relationship between an operation in an instruction and a pipeline to execute it.

Slots are a popular feature on online casino games and can offer a range of extra game play options. For example, you might be able to choose from additional paylines or a bonus game where your winnings are multiplied. These features are usually available to players who have activated the feature by clicking on an icon near the base of the screen.

When you play slots, it’s important to remember that you are in a communal gaming environment. This means it’s important to follow the rules of etiquette and be considerate of others to ensure everyone has a positive experience. For example, it’s polite not to chat loudly with friends or use your mobile phone or tablet during gameplay. If you do, you could be asked to leave the machine.