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

In computer programming, a slot is a place to pass reusable functionality. The concept is very useful in the context of a modular web application, where the goal is to reduce the amount of code and increase the reuse of functions. For example, many frameworks use slots to pass functionality through modals. In addition, you can use slots to pass reusable functional components in Bootstrap.

A slot is a position in a group, series, sequence, or hierarchy. The term is also used to refer to a range of numerical positions on an electronic device or in a computer. For example, in a digital television or radio receiver, a number of slots may be configured to provide different channel selection options.

A Slot receiver is a football player who lines up relatively close to the center of the field and is an important blocker for running plays. In order to be successful on these types of plays, he must be able to quickly read which defenders are close by and then block them effectively. For instance, on sweeps and slant runs, he must be able to chip the defensive backs.

Psychologists have found that people who play video slots reach debilitating levels of involvement in gambling three times faster than those who do not play these machines. The reason is that players who gamble on video slots are compelled to make more frequent bets, and they tend to bet higher amounts per spin. This makes them more likely to lose large amounts of money, and it is the main cause of gambling addiction.