This is not really a question, but I will attempt an answer. The moat was a ditch/canal filled with water and crossed using a drawbridge. It was a form of protection. The castled located on a "mott" or hill usually didn't need this form because they could see in all directions.
moat drawbrige portcullis
you should use it on a moat
The water-filled trench around a castle is called a moat.
The Beaumaris moat, surrounding Beaumaris Castle in Wales, is approximately 1.2 kilometers (about 0.75 miles) long. This impressive moat was designed to enhance the castle's defenses and is one of the finest examples of a medieval water-filled moat. Today, it remains a significant historical feature of the site.
Moat refers to a ditch filled with water, often used to help protect a fort or castle. Therefore, a suitable sentence would be "In medieval times, one defence often employed to deter attack upon a castle was the excavation of a deep moat."
cannons, soilders, paint, a tower, a moat. good luck. Make a draw bridge
I think that the 'trench' you are thinking of is a moat. You could say that it is a trench full of water that surrounds the castle. If you are not thinking of a moat then I am sorry.
Usually there is a moat around the castle. Apon being cleared to enter, a drawbridge was lowered covering the moat and a visitor would ride his horse over , the the drawbridge would be raised again to keep out unwelcome guests. (the electric gate of today serves the same purpose except for the moat)
A moat is a body of water that circles a castle, and a drawbridge is part of the castle that lowers to allow people to cross the moat.
The moat cleaners. ;)
the moat around the castle was there to protect the castle when it came under attack. A moat is basically a circle river dug around the castle. Hope this helps
The moat is filled with sharks