A slot is a narrow notch, groove, or opening, as in a keyway in a machine or a slit for a coin in a vending machine. Also: an appointed time, a place in a schedule, or a position, as on a committee or at a table. (From Webster’s New World College Dictionary, 4th Edition Houghton Mifflin Harcourt Publishing Company.)

In football, a player in the slot is usually closer to the middle of the field than traditional wide receivers. This position often requires speedy players who can run routes that complement those of the other wide receivers and help confuse the defense. However, the slot receiver can also be more vulnerable to big hits as he is closer to the linebackers and cornerbacks on running plays.

At a casino, a slot is the amount of money or credits you can win with a single spin of the reels. A slot may also refer to a particular game or set of games that is available for play. The pay tables for different slots can vary greatly. Some have a simple chart with a few lines of symbols while others have pages of rules and guidelines to read through.

In air traffic management, slots are the times that airlines are allowed to operate at congested airports. They are issued by EUROCONTROL as part of its role as network manager. When used correctly, slots can allow airlines to avoid long delays and unnecessary fuel burn by avoiding conflicts with other flights.