A covered walk, walled on one side and usually arcaded on the other, surrounding or partly surrounding an open area in a monastery or similar complex of Christian buildings.
![The ruins of Castle Acre Priory showing the Prior's lodgings and the cloisters](http://hbsmrgateway2.esdm.co.uk/norfolk/DataFiles/FullImages/749.jpg)
The ruins of Castle Acre Priory showing the Prior's lodgings and the cloisters. (© NCC)