The language one first learned; the language one grew up with; one's native language.
One's native language.
A language in its relation to another derived from it.
Mother-tongue Sentence Examples
He understood German and Greek as well as his mother-tongue, and could express himself fluently in Latin.
Only a very small proportion was translated into his mother tongue.
In a wider sense it may be extended to include all who inhabit Maharashtra and speak Mahratti as their mother-tongue.
Classifying the population according to the mother-tongue of each individual, there were, in the civil population of Hungary proper, including Fiume: The censuses show a decided tendency of change in favour of the dominating nationality, the Magyar, which reached an absolute majority in the decade 1890-1900.