Thank you so much but to understand meanings exactly in reading newspapers and books, sometimes I do and then what about students? I think that the reason we can speak our mother tongue is that we did or do study it, using dictionaries when we were young.
And then I have one more question.
Do you think that as a grown up, is it possible to learn English as a mother tongue? Or we
Again broadly speaking, I think younger people learn a lot of words through speaking and specially by reading, ie by seeing new words in a variety of contexts,
Your mother tongue is usually defined as the language your mother spoke to you when you were a small child.