ELI5: Explain Like I'm 5

National language

A national language is the language that everyone in a particular country has agreed to use and follow. It's like a special language that everyone in the country understands and speaks. Just like how you might have a favorite color, a country has a favorite language that it uses for important things like government and school. It's like the King or Queen of all the other languages in the country.

Having a national language is important because it helps everyone in the country to communicate with each other, share ideas and understand each other better. It also helps people feel like they belong to a community, a group of people who share the same language and culture. Even if people speak different languages at home, they can still come together to speak the national language in public.

In some countries, there are multiple national languages because there are many different groups of people living there who each have their own language. In these cases, the government will make sure that all the different languages are respected and have equal status. It's like having many Kings and Queens, all working together to create a peaceful and happy kingdom.