/ vəˈnækjələ(r); NAmE vərˈn-/ noun
1.
(usually the vernacular ) [ sing. ] the language spoken in a particular area or by a particular group, especially one that is not the official or written language
2.
[ U ] ( technical ) a style of architecture concerned with ordinary houses rather than large public buildings
► ver·nacu·lar adjective
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WORD ORIGIN
early 17th cent.: from Latin vernaculus domestic, native (from verna home-born slave) + -ar .