Slot – A Small Slot in a Door, Window, Machine Or Device

A narrow notch, groove or opening, as one in a door, window, machine or device. Also: a position in a group, series or sequence; a berth or seat; a spot, vacancy, niche or opportunity.

From Middle Low German slot (“lock, castle”), from Proto-Germanic *sleutana (compare Dutch slit). The original meaning was that of a bolt that locks the castle gate, but by the 18th century it had come to mean any small notch in a wall or other structure.

The best online slots offer a wide variety of features that expand your control and options. For example, many games have multiple pay lines that run across reels, giving you more ways to win on each spin. Bonus rounds are another common feature of online slots that allow you to play for free or with real money, and they can include anything from additional spins and extra credits to jackpot payouts and other exclusive rewards.

Before electronic bill validators and credit meters became standard in casino machines, players dropped coins into slots to activate the game. These machines use reels containing symbols to spin, and when they stop spinning, the player receives a payout based on the symbol combinations listed on the pay table for that machine. The pay tables are usually displayed above and below the reels, or in the help menu on video slots. Players can also choose to play without a paying coin by using advance credits that are loaded on the machine and not having to deposit cash.