vernacularver-NAK-yuh-ler
noun;
1.The plain variety of language in everyday use.
2.The language or vocabulary peculiar to a class or profession.
3.The native speech or language of a place.
4.Any medium or mode of expression that reflects popular taste or indigenous styles.
adjective:
1.(of language) Native or indigenous.
2.Using the native language of a place.
3.Using plain, everyday language.