This term is used to describe how often and how much you can expect to win during your game. Certain games can present long dry spells with occasional but really big wins. These are known as high volatility slots, and they are beloved among experienced players.
Lower volatility games equate to lower risk. The payouts on low volatility slots are smaller but much more frequent, and there’s not a lot of boredom in this type of game. These slots are excellent for newbies. Anyway, it is up to you to decide, so good luck!