A slot is a dynamic placeholder that waits for (passive) or calls out for content (active). Scenarios use either the Add Items to Slot action or a targeter to fill a slot with content. A slot can be filled with an individual item or a collection of items.
The slot of a phonograph record or gramophone disc consists of an open hole or depression in the surface, through which sound passes freely. It is usually a narrower opening than that of the groove, and it may be used for holding text or other material.
In computing, a slot (also known as a socket) is an engineered technique for adding capability to a computer in the form of closely-spaced pinholes or slots into which expansion cards can be inserted. Almost all desktop computers come with a set of expansion slots.
Charles Fey’s original Liberty Bell three-reel slot machine is on display at the California Historical Landmarks Museum in San Francisco. A plaque marks the site of his workshop where he invented the machine in 1899.
In sports, a slot corner is a shorter receiver who can stretch the defense with their speed and run routes that require short bursts of speed. These players are often very effective on slant routes or quick outs. They have become more common in the NFL in recent years.