A Moat
Moat.
The ditch around a castle is called a moat.
a moat
It could also protect the castle if the enemies comes.
a moat
a moat
a moat
a moat
Another word for a deep ditch that is dug around a castle is a moat. You could call it a trench, or you could fill it full of water and call it a moat.
trenches
It's called a moat.
The water-filled trench around a castle is called a moat.
a moat is a big ditch around a castle its filed with water to hold off invaders