Macedonia is a place that used to be part of a bigger country called Yugoslavia. But, in the 1990s, when Yugoslavia broke up, Macedonia became its own country. This means it has its own government, its own rules, and its own people who live there.
Macedonia is also a word that can be used to talk about the people and the culture of that place. For example, if someone is from Macedonia, they might say "I am Macedonian." If you are talking about the food, music, or traditions of that place, you might say "This is Macedonian cuisine/music/culture."
Sometimes, Macedonia can also be a bit confusing because there is another place called Greece that has a region called Macedonia. Some people in Greece say that it is the only place that can use the name Macedonia, but people in the Macedonia we were talking about before say that they should be allowed to use it too.
So, in summary, Macedonia is a small country that used to be part of a bigger country, and it is also a word that can describe the people and culture of that place. And sometimes there is a bit of a disagreement about who can use the name Macedonia.