The Vietnamese word "đê quai" refers to a small dyke or embankment that surrounds a larger one. This structure is typically built to help control water flow, especially in areas prone to flooding. It serves as an additional layer of protection to prevent water from overflowing and causing damage.
While "đê quai" primarily refers to a small dyke, it may also be used metaphorically in literature or conversation to describe a protective barrier or safeguard in a broader sense, such as emotional or social protection.