Meaning of the word "mother tongue" in English

What does "mother tongue" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

mother tongue

US /ˈmʌð.ər ˌtʌŋ/
UK /ˈmʌð.ər ˌtʌŋ/
"mother tongue" picture

Noun

1.

the language that a person has grown up speaking from childhood; the native language of a person or a group of people

Example:
English is my mother tongue, but I also speak French fluently.
Learning a new language is easier if you have a strong foundation in your mother tongue.
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