What does mother tongue mean?

"Mother tongue" refers to the first language a person learns to speak. It's the language they're exposed to from a very young age, typically from their parents and family.

Here are some key things to understand about "mother tongue":

* It's not necessarily the language of your birth country. You might be born in a country where a different language is spoken, but your parents might speak a different language at home, making that your mother tongue.

* It's not limited to spoken language. It can also encompass sign language or any other primary mode of communication a person acquires from childhood.

* It's more than just communication. It's a vital part of a person's identity and cultural heritage, shaping their thoughts, values, and worldview.

Think of it as the foundation of your linguistic and cultural identity. It's the language that feels most natural and comfortable, and it allows you to express yourself most fully.