A slot is a thin opening or groove in something. You can find slots in door frames, walls, and other objects. You can also use slots to put mail through, like letters and postcards. A slot can also refer to a specific place where you can insert your coin or paper into a machine to get a payout.
Payline –
One of the most important things to know about any slot is its paylines. These are the lines where matching symbols need to land to form a winning combination. While traditional slots might have only a single horizontal payline, video slots can have numerous ones to give you more chances to win. A good way to see how many paylines a slot has is by reading its pay table.
Candle (AKA Tower Light) –
A candle, or tower light, on the top of a slot machine is used to signal that the player needs help from the casino staff. This is typically done by hitting the service button. Often, the player will be asked to change their denomination, or they may be given some additional free spins or bonus features as an incentive to do so. In addition to the service button, some slot machines have a “max bet” or other indicator that will show when a player has reached their limit. The best way to avoid this is by setting your bankroll before playing, and staying within it.