Chuvash language is a way of talking that some people in Russia use to communicate with each other. It has special sounds and words that are different from other languages, like English. Just like how you might learn to say new words in school, people who speak Chuvash also learn new words and how to use them correctly.
Chuvash language has its own alphabet, which means that instead of using the same letters as English, like 'a' and 'b', they use different symbols that only people who speak Chuvash know how to read. This alphabet is called the Cyrillic alphabet.
People who speak Chuvash often use it when they are talking to others who also speak Chuvash, but they might also know how to speak other languages so they can talk to other people who don't speak Chuvash. Just like how you might talk in different ways depending on who you're talking to, people who speak Chuvash might talk differently depending on who is listening.
Overall, Chuvash language is just one of many ways that people can communicate with each other, but it is special and important to the people who speak it.