A position within a group, series, sequence, or arrangement. The term is especially common in aviation where there are multiple slots that a plane can be assigned to take off or land. A slot can also be a particular position on an airfoil, where it takes up less or more space than others.

There are many different types of slots, each with its own return to player (RTP) percentages, volatility levels, and maximum win values. Some slots are progressive, with their winnings added to a jackpot level; others have special features such as Wilds that can substitute for other symbols or open bonus levels.

One of the most important things to remember when playing any slot game is that it is a game of chance and results are determined by a Random Number Generator (RNG). The RNG produces an independent sequence of numbers every millisecond, which determines what symbols appear on a reel. Once the sequence is complete, the computer uses an internal table to find the corresponding stop on the reel. This process is called mapping.