What is a Slot?

A narrow opening, hole, or groove. Also called a slit, trough, or notch.

A slot in a machine (usually an electromechanical one) that accepts coins or paper tickets. Typically there are 3-5 reels that fit 3-6 symbols each, with a pay line running across them. When a winning combination is made, the machine pays out credits according to a predetermined pay table. This is usually displayed above or below the reels, or in a help menu on video machines.

In hockey, the slot is a key position in front of the net that allows players to shoot without having to deflect the puck. This position is coveted by both defense and offense because it gives the offensive player a straight-on view of the net and therefore increases their chances of scoring a goal.

An airline’s permission to operate at a constrained airport, such as Heathrow or certain Greek islands. These slots are sometimes traded or rented for a premium. They can be reserved up to a year in advance. Since the introduction of central flow management in Europe, slots have been a major success story in terms of reduced delays and fuel burn. However, they may not be available everywhere in the world due to air traffic control capacity limitations. Nevertheless, there is a growing interest in the concept.