A slot (plural: slots) is a place or gap in a surface, typically a mechanical one, that allows something to pass through it. A slot is usually a narrow opening that is wide enough to allow the passage of a coin or other small object. It can also refer to a specific area within a machine that holds multiple reels or other types of hardware.
The word slot is also used figuratively to describe an open or unoccupied position in a game, activity, or setting. In computer terms, a slot is a reserved spot for an expansion card that adds functionality to the system. Modern computers often include a number of expansion slots for this purpose. The term is also sometimes used to refer to a vacant or open position on a team’s roster.
In the NFL, a slot receiver is a player who lines up on the outside of the formation. This positioning makes them more vulnerable to deep passes and other defensive coverage, but it also helps them get open for slant routes and other short receptions. Many teams rely on their slot receivers to fill a variety of roles in passing plays, making them a crucial part of any offense.