first language Meaning in the Cambridge English Dictionary
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Meaning of “first language” in the English Dictionary

"first language" in British English

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first languagenoun [C]

uk   us  
B2 the ​language that someone ​learns to ​speak first
(Definition of first language from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"first language" in American English

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first languagenoun [C]

 /ˈfɜrst ˈlæŋ·ɡwɪdʒ/
the language you ​learn from ​yourparents as you are ​growing up
(Definition of first language from the Cambridge Academic Content Dictionary © Cambridge University Press)
Translations of “first language”
in Arabic اللُغة الأولى…
in Korean 모국어…
in Portuguese língua materna…
in Catalan llengua materna…
in Japanese 母語…
in Chinese (Simplified) 母语, 第一语言…
in Turkish ana dil…
in Russian родной язык…
in Chinese (Traditional) 母語, 第一語言…
in Italian madrelingua…
in Polish język ojczysty…
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