Who can explain slot machine symbols meaning?

I hope I'm not the only one who doesn't understand what the symbols on slot machines mean. While I more or less understand the fruit symbols, sometimes I come across other images that I haven't seen before. Are they always good signs? Or should I be wary of something?

You know, slot machines have been around since the 20th century, and they have a very interesting history. That's when the first symbols appeared, such as horseshoes, diamonds, liberty bells, and so on. I also read an article on Sportzino about slot machine symbols meaning that there are four types of symbols. These are wild symbols, scatters, bonuses, and multipliers. They can vary depending on the theme of the slot. For example, in Sweet Bonanza, these can be large candies or fruits with the multiplier for your winnings written on them.