A narrow notch, groove or opening, as in a keyway in machinery, a slit for a coin in a vending machine, etc. Also figuratively, a position in a group or series, or a slot on an instrument.
The most important thing to remember about slots is that they are completely luck based and no amount of strategy will change the chances of winning. That is why it is so important to study the pay table and understand what each symbol means and what type of combinations you need to hit in order to get the best payouts. It is also crucial to know the minimum bet size for each prize. Even machines labelled with the same denomination can have very different pay out prizing and the only way to be sure of what you will get from a spin is to read the pay table carefully.
Once you have decided on a machine and the size of your bet you can press the spin button to start playing. You can then watch the reels spin and hope that some of the symbols line up in a winning combination. Many slot machines have extra features such as Free Spins, Bonus Rounds or Multipliers to increase your chances of winning. In addition some have theme based soundtracks that can add to the overall experience or if you prefer to concentrate on your game without distraction you can use the Auto Play feature and let the machine do the work for you while you relax.