Slot is a dynamic placeholder on a Web page that either waits for content to be added (a passive slot) or, when called by a render function, fills in its contents with the value of the corresponding props. For example, the value of a v-slot could be a name or a number representing the position of an image within its parent element. Using this technique, developers can encapsulate complex logic in slots and delegate visual output to their consumer components via scoped slots.

In machining, a slot is an opening cut into a workpiece or part, usually to remove chippings or to create a chamfer. Various techniques are used to achieve this, including hand tools, rotary tables, and power tools such as drills or saws. The resulting surface is generally rough, with some tool marks. To produce a smoother surface, slotted parts may be sanded or polished.

In the United States, a slot machine is a type of casino game that pays out winnings based on a combination of symbols displayed on a reel. Depending on the machine, the symbols can be traditional fruits, bells, and stylized lucky sevens, or themed images related to a particular theme. Some slots have multiple pay lines, while others have a single, fixed pay line. The player inserts cash or, in the case of ticket-in, ticket-out machines, a barcoded paper ticket with a barcode into a designated slot on the machine to activate it. The machine then displays the number of credits the player will win if the symbols on the reels match those listed on the pay table.