Oxford advanced dictionary: native speaker
a person who speaks a language as their first language and has not learned it as a foreign language
Collins dictionary: native speaker A native speaker of a language is someone who speaks that language as their first language rather than having learned it as a foreign language.
- Could someone speak three language: Germany, Italian, and English, described as “a native speaker of three language”?
Consider someone whose father is American, mother is Italian, and he was born in Germany and raised there.
Would he be a native speaker of three languages?
He would Learn English from his father, Italian from his mother, and Germany from friends, school and street.