A slit, hole, or other narrow opening, especially one that receives something, as a coin or paper. Also: A position, as in a series or sequence; an assignment or job opening.

A casino slot is an electronic game that pays out prizes when a specific combination of symbols appears on a payline. Unlike mechanical slots, which require the physical spinning of reels to determine their positions, modern electronic machines use random number generators that cycle thousands of numbers each second. The results are then displayed on a screen. Some slots have a bonus round that rewards the player with additional credits, or a physical mechanism that adds more to the jackpot.

The slit in the screw head through which the shaft of the journal is inserted. The nut that holds the slit in place is called a wedge.

In computer science, a position in a file or data structure that may be used to index, store, and retrieve information. In a computer, a slot is usually a 32-bit integer.

In ornithology, a narrow notch between the primaries of certain birds that permits a smooth flow of air over the wings during flight. In ice hockey, an unmarked area in front of the opponent’s goal that affords a vantage for attacking players.