Definition of "Monmouthshire"

A maritime traditional county of England and Wales, bordered by to the east by Gloucestershire, to the northeast by Herefordshire, to the north by Brecknockshire, to the west by Glamorganshire and to the south by the Bristol Channel. It was part of England until renamed Gwent and taken into Wales in 1974.  examples

A county and local government principal area of Wales which replaced Gwent, bordered by the Forest of Dean, Herefordshire, Powys, Blaenau Gwent, Torfaen and Newport.  examples