A slot (also slit) is a narrow notch or opening, such as a keyway in machinery or a slit for a coin in a vending machine. Also:

In computer technology, a hardware device that allocates operating system resources to an application or task. A slot usually comprises the operation issue and data path machinery surrounding a set of one or more execution units, which share these resources. The term is also used for a part of the computer’s memory or disk space devoted to a specific instruction or task.

Casinos are teeming with towering video slots with colorful displays and quirky themes. They’re popular because they are easy to play, with no complex rules and minimal human interaction. But many players lose more money than they win. To walk away a winner, you need to know how to size your bets relative to your bankroll and choose the best machines.

When playing a slot machine, check the pay table before inserting your money. This will tell you what the maximum payout is on different symbols and any caps a casino may place on jackpots. It is also wise to limit the number of machines you play at a time, especially in crowded casinos. Too many machines can be dangerous, as was the case with a woman who dropped coins into six adjacent slots at once and lost it all before she could even leave.

In football, a slot receiver or corner is a player who lines up between a tackle or tight end and an outside receiver. This position is useful in pass-heavy offenses, and can be difficult to cover because of its proximity to the line of scrimmage.