Vernacular means proper of a place. Thus, it is possible to speak of a folklore, an architecture or a vernacular name. However, this word presents its true meaning in the context of linguistics, a discipline that scientifically studies languages.
The language of our personal and family environment is known as the mother tongue. Thus, a Japanese child living in Mexico will have a mother tongue, the Japanese learned in the family environment and, at the same time, a vernacular that is an informal language of the country itself. This child will learn Spanish at school and in their social environment.
Explanation: So the first one to the mayor is assertive, concerned and polite. The second for the Local Newspaper is demanding, persuasive and logical. And the third for the uncle is just the very last one.
