mother tongue Meaning in the Cambridge English Dictionary
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Meaning of “mother tongue” in the English Dictionary

"mother tongue" in British English

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mother tonguenoun [C usually singular]

uk   us  
B2 the first ​language that you ​learn when you are a ​baby, ​rather than a ​languagelearned at ​school or as an ​adult
(Definition of mother tongue from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “mother tongue”
in Chinese (Simplified) 母语, 本国语, 本族语…
in Turkish ana dil…
in Russian родной язык…
in Chinese (Traditional) 母語, 本國語, 本族語…
in Polish język ojczysty…
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