a person who has spoken the language in question from early childhood
Conservative populism was Sarah Palin's native language, but it never sounded quite right coming out of McCain's mouth.
The clues are in English—Brad and Ken's native language; not Watson's.
She said someone had already given her the literature in her native language, but Morrison was confident.
How does literature in your native language differ from English?
Cruz is the real revelation here, best in her native language.
They were forbidden to read their native language, or to write it, or even to speak it in their own houses.
The fact that in one year they had almost entirely forgotten their native language, seems at first thought almost incredible.
This led to a new vocabulary of the native language, and in a short time to a new method of spelling.
He had given shape and permanence to his native language by his Dictionary.
While studying the native language, I felt myself studying the native character as well.