Imagine you and your friends are playing with different dolls. You may each have a similar looking doll, but each doll has something special about it that makes it unique. This is kind of like how different regions in Bulgaria have their own way of speaking that makes them different from each other, even though they are all speaking Bulgarian.
Just like how each doll has different clothes or accessories, each region in Bulgaria has different words or pronunciations that make their dialect unique. For example, someone from one region might say "saba" for hello, while someone from another region might say "zdrasti" instead. These small differences can add up and create a dialect that is specific to that region.
Sometimes, people from different regions might have a hard time understanding each other because of these differences. But just like how you might ask your friend about their doll's special features, people in Bulgaria can ask each other about their dialects and learn more about the different words and pronunciations that make each one unique.