Answer:
Mother tongue can often be referred to as your first language or native language. It is the language that you most commonly speak. However, mother tongue is always referencing the language that the child has used from birth and in important and impacting times in the child’s life.
For example, there are instances where a child is brought up until school age using a particular language at home spoken by their mother, father or other family members, but due to living in another country begins to adopt the language spoken in their interactions in groups or school. But if the child comes back home continually to another language, this is impact can be lessened.
Mother tongue for a child involves more than just language and includes the child’s personal, social and cultural identity. The choice of words and expression carry different meaning across cultures and where in one language asking direct questions is considered intrusive, in another it is inquisitive. This means that the language chosen when speaking is thought about before it is delivered.