A slot is a narrow opening, groove, notch, or slit, especially one for receiving or admitting something. It is also the name for a position or job in an organization, such as that of chief copy editor.
A gambling machine with three or more reels that spin when a button is pressed, and a variety of symbols that can trigger different bonuses and rewards. Modern electronic slots are controlled by random number generators (RNGs).
The earliest mechanical machines used a lever, but modern machines are operated with buttons or touchscreens. Most have three or more reels, and each has a separate probability of hitting the higher-paying symbols. Increasing the probability of hitting a certain symbol increases the house advantage, which casino operators strive to minimize.
Some slot machines have progressive jackpots, which increase with each play and reset when no winner is detected. Progressive jackpots can be very lucrative, but they are also prone to fraud and theft, and some jurisdictions have banned them.
A narrow notch or similar opening between the tips of the primary feathers, on the wings of some birds, that helps to maintain a smooth flow of air over the wing during flight. Ornithology