1. the language or dialect spoken by the ordinary people in a particular country or region
2. the terminology used by people in a particular activity or profession

1. using the native language of a country or region rather than a literary, cultured, or foreign language
2. relating to ordinary spoken language rather than formal or literary language

Examples

• The poet wrote in the vernacular to reach common people.
• Medical vernacular can be difficult for patients to understand.
• She translated the Latin text into vernacular English.
• The vernacular architecture of the region reflects local traditions.
• Hip-hop artists often use street vernacular in their lyrics.
• The Bible was first printed in vernacular languages during the Renaissance.
• Legal vernacular makes contracts hard to read for ordinary citizens.