A defensive water-filled trench surrounding a castle, designed to protect it from invaders and provide an additional layer of security.
The outermost layer of a series of moats, specifically referring to the trench that is situated outside of another moat, typically indicating a dual-layered defensive structure.
A moat surrounding a fortification, often used as a separation between the castle and the surrounding land, contributing to both military defense and the aesthetic integrity of the castle grounds.
A dug-out channel typically filled with water, created around a structure for defensive purposes, often serving to deter invading forces.
An excavation in the ground that may either be dry or contain water, specifically designed to protect a territory or building from unauthorized access by forming a barrier.
A water-filled trench surrounding a fortification or castle, utilized for both aesthetic and strategic defensive advantages.
The activity of harvesting sweet potatoes from the ground, often enjoyed as a communal or seasonal event in rural areas.
A term used in a derogatory sense to describe someone as unsophisticated or rustic.
An abbreviation referring to a traditional Japanese children's game associated with the act of digging for sweet potatoes.
A river that flows southward through the central part of Kyoto, originating from the Kamo River and merging with it in the southern region of the city.
A man-made waterway used for navigation or drainage, often associated with canals or aqueducts in urban areas.
A specific type of watercourse that functions as an irrigation channel or a conduit for transporting water in a cultivated landscape.
A type of water-filled trench located within the walls of a castle, designed for defensive purposes.
The inner ditch or canal that surrounds a castle, offering protection while distinguishing it from the outer moat.
An inner boundary of water surrounding the main structure of a fortress, serving both functional and aesthetic roles in its architecture.