water jump
Specifically a water-filled obstacle on a racetrack or equestrian course.
In the steeplechase, the horse jumped over the water jump.
moat; water-filled trench
A defensive ditch filled with water, typically surrounding a castle or fortification.
A deep moat surrounded the castle.
Standard kanji spelling for a water-filled ditch or moat.
Variant spelling using 壕 (trench, dugout).
Compound of 水 (water) and 濠 (moat, ditch). The spelling 水壕 uses 壕 (trench, dugout) as a variant.