A slot is a thin opening or groove in something. You can use a slot to put coins into a slot machine or to send postcards through a mail slot. A slot in a computer is used to hold a processor. It’s also a term that refers to the number of paylines available on a slot machine. Some machines allow you to choose which paylines to wager on, while others automatically place a bet on all pay lines. Choosing a different amount of paylines is called playing free slots, while betting on all lines is referred to as playing fixed.
Slot receivers often play in two-receiver offensive sets and are one of the most important positions on offense. Their position got its name from the fact that they line up pre-snap between the tight end or offensive tackle and the last player on the line of scrimmage (or outside receiver). They must have advanced blocking skills, as well as speed and route running ability.
They also play an important role on run plays, as they are closer to the middle of the field than other wide receivers. They can block (or at least chip) nickelbacks and outside linebackers on run plays, and they’re also responsible for sealing off the outside on running plays such as sweeps and slants. On passing plays, slot receivers run routes that match up with the other receivers in an attempt to confuse the defense.