What is the meaning of Vernacular?

The language of a people or a national language.

Everyday speech or dialect, including colloquialisms, as opposed to standard, literary, liturgical, or scientific idiom.

Language unique to a particular group of people.

A language lacking standardization or a written form.

Indigenous spoken language, as distinct from a literary or liturgical language such as Ecclesiastical Latin.

A style of architecture involving local building materials and styles; not imported.

Of or pertaining to everyday language, as opposed to standard, literary, liturgical, or scientific idiom.

Belonging to the country of one's birth; one's own by birth or by nature.

Of or related to local building materials and styles; not imported.

Connected to a collective memory; not imported.

Not attempting to use the rules of a taxonomic code, especially, not using scientific Latin.

vernacular (pertaining to everyday language)

vernacular

Source: wiktionary.org