principal
There is no single-word synonym for "their" in the English language.
Yes it is, tongue and mother tongue as a synonym.
the synonym for the word above is learing
Argot is a French, Spanish, and Catalan word meaning "slang." So I suppose the synonym would be "slang." It is also a secret language, so secret language could be another synonym for it.
Those are antonyms.
There is no single-word synonym for "their" in the English language.
Yes it is, tongue and mother tongue as a synonym.
the synonym for the word above is learing
the same
Language or nomenclature.
socialization
following
Following
A linguist.
Argot is a French, Spanish, and Catalan word meaning "slang." So I suppose the synonym would be "slang." It is also a secret language, so secret language could be another synonym for it.
Politeness
Many languages have these.