A baronet is sort of like a fancy title that some people can have in England and Scotland. It's not quite as fancy as being a king or a queen, but it's still pretty special.
Basically, a really long time ago, the king or queen would give land to some people who were important and did good things, like fighting in battles or helping the kingdom. These people would then be called "baronets."
Nowadays, being a baronet doesn't really mean that you have a lot of power or land. Instead, it's more of a title that people get because their family has been important to the country for a long time.
So, if you meet someone who is a baronet, you can think of them as kind of like a fancier version of a regular person. They have a cool title and a prestigious family history, but they're not necessarily ruling the kingdom or anything like that.