defintion sense of the word

Your mother tongue is the language you first learn as a child, even if it's not your mother's mother tongue.

but not in the definition sense of the word

Is that correct

Let's say that your mother tongue is the language you mother speaks not the language you learn first, is the top sequence correct grammatically?

Thanks

AnonymousLet's say that your mother tongue is the language you mother speaks not the language you learn first, is the top sequence correct grammatically?

No. It's not correct grammatically or logically. "Mother tongue" is, by definition, the first language a child learns.
Your mother's mother tongue is, I think, what you mean.

Spanish is my mother tongue but not in the definition sense of the word because my mother isn't Spanish but that's the language you grew up speaking.

Let's say that your mother tongue is the language you mother speaks not the language you learn first, is the top sequence correct grammatically?

Is the underlined correct?
I want to know if it is correct to say : in the d

Better:

but not according to the definition of the word.

What do you think about : not in the literal sense of the word?

Is that better than or as good or worse than according to the defintion?

Could you tell me if it is better?

Thanks in advance

Is 'not in the literal sense of the word' correct and natural?