第一言語(だいいちげんご)

だいいちげんご
noun
first language; native language
formallanguageeducation
1. first language; native language; mother tongue
The language a person acquires first as a child, typically the language spoken at home. A term used in linguistics and education.
私(わたし)の第一言語(だいいちげんご)は日本語(にほんご)です。
My first language is Japanese.
There are also many students whose first language is not English.
第一言語(だいいちげんご)の習得(しゅうとく)は幼児期(ようじき)に自然(しぜん)に行(おこな)われる。
First language acquisition occurs naturally during early childhood.

A linguistic term for the language a person learns first, often used in academic and educational contexts. Abbreviated as L1 in linguistics.

Common collocations

Similar words

  • 母語(ぼご): mother tongue — the most common everyday term for one's native language
  • 母国語(ぼこくご): national language of one's home country — slightly different nuance; refers to the language of one's country rather than what one acquired first
  • 第二言語(だいにげんご): second language (L2) — the complement to 第一言語(だいいちげんご)

Usage

More technical than 母語(ぼご). Used particularly in discussions of language acquisition, bilingualism, and language education policy. Important in contexts where a person may have grown up speaking a different language from the dominant language of their country.