自国語

Meaning

1. n
   one's native language; one's mother tongue

Example sentences

• インターネットを使って異国語を学ぶものがいる一方、一日1$以下で暮らし自国語さえ読めないものがいる。

  While there are some people who use the Internet to learn foreign languages, there are others, living on less than a dollar a day, who cannot even read their own language.