Slot is a narrow notch, groove, or opening, especially one for receiving something, as a keyway in machinery or a slit for a coin in a vending machine. Also, a position in a sequence or series. He dropped a dollar into the slot of the phone, and it clicked into place. The new phone slotted in with ease.

In computing, a slot is a position in a program or schedule for an activity to take place. A web page can have several slots, each reserved for a specific activity or piece of information. Visitors can book a time slot in advance.

A slot in a schedule can be filled with multiple events or activities, or it may be empty. A busy health care provider may use time slots to organize appointments or client interactions. It can also help staff members prioritize work and meet important deadlines.

Superstitions about playing slots are common, but many of them are counterproductive. For example, believing that your next spin is your lucky one can cause you to spend more than you can afford to lose. It is important to set limits before you play and stick to them. Gambling within your means will keep you from losing more than you can afford to, and you will have fun while doing it. You can even make money while playing slots if you use the right strategies, but remember that luck plays a big part in winning and losing.