Imagine there's Bitcoin, the big boss of crypto. Everything else? Those are altcoins (alternative coins) eg. $ETH and more. Sometimes, these altcoin projects will talk about a "token burn." Think of it like taking some of their digital coins out of circulation – making the remaining ones potentially worth more.
But here's the golden rule with altcoins: DYOR. That stands for "Do Your Own Research." Don't just believe what you hear about a coin or a burn. Dig in, understand what the project is actually doing, and decide for yourself if it's a good idea. There are lots of altcoins out there, and not all of them are winners!