n. deep wide ditch; ditch dug as a fortification and usually filled with water
A moat separates the animals in the zoo from the spectators
Sentence in Classic:
Then they knelt by the moat, they gathered water in their two hands, they rose and they held the water out to our lips.
It was worth any money to see Wemmick waving a salute to me from the other side of the moat, when we might have shaken hands across it with the greatest ease.
Great Expectations By Charles Dickens Context
The castle moat divided this species of barbican from the rest of the fortress, so that, in case of its being taken, it was easy to cut off the communication with the main building, by withdrawing the temporary bridge.