A narrow depression, groove, notch, or opening, especially one for receiving something such as a coin or a letter. A position in a sequence or series: Her TV show is scheduled for the eight o’clock slot on Thursdays. To provide with a slot or slots.

In gambling, a slot machine is a casino game that gives players the opportunity to win credits by matching symbols on reels. Different slot machines have different payouts, with some having jackpots or other special features. Whether online or in a real casino, it’s important to read the rules of each slot game before playing. In addition, it’s important to know your bankroll and set limits for how much you can lose or win.

The earliest slot machines were designed to take coins or paper tickets with barcodes, which were inserted into a slots at the back of the machine. A lever or button (either physical or on a touchscreen) is then pressed to activate the reels, which then display combinations of symbols. Some slots have multiple paylines, while others are fixed and cannot be changed. In either case, a combination of matching symbols earns the player credits, often in a particular order.

In Dialog Engine, a slot can be mapped to a specific value by clicking the Add Slot Type link in the Bot Builder. Then select a slot type from the list, or choose Custom to create a new regular expression. For example, a travel bot may require location slot types for cities or airport codes.