Cách sử dụng
The word 'duchy' is used to refer to a small territory that is ruled by a duke or duchess. A duchy is like a province or a state, but it is usually smaller and has a duke or duchess as its leader. For example, the Duchy of Cornwall is a small region in the southwest of England that is owned by the Prince of Wales. The word 'duchy' is not commonly used in everyday conversation, but you may come across it in history books or when talking about royalty and nobility.