enclosure (n.)
- abatis
- arena
- bailey
- bank
- banquette
- barbican
- barnyard
- barricade
- barrier
- barton
- bastion
- battlement
- boundary
- box
- breastwork
- bulwark
- cage
- cheval-de-frise
- cincture
- close
- compound
- container
- containment
- coop
- corral
- cote
- court
- courtyard
- crib
- croft
- curtain
- curtilage
- dike
- drawbridge
- earthwork
- embracement
- encirclement
- enclave
- encompassment
- entanglement
- envelopment
- environment
- escarp
- escarpment
- farmyard
- fence
- field
- fieldwork
- fold
- fortification
- ground
- hedge
- hell
- hutch
- inclusion
- involvement
- kraal
- limbo
- list
- loophole
- lunette
- machicolation
- manger
- mantelet
- merlon
- mound
- outwork
- paddock
- pale
- paling
- palisade
- parapet
- park
- pasture
- pen
- pigpen
- pigsty
- pinfold
- polygon
- portcullis
- pound
- purgatory
- quad
- quadrangle
- rail
- railing
- rampart
- redoubt
- rink
- run
- runway
- scarp
- sconce
- square
- stall
- stockade
- stockyard
- sty
- theater
- wall
- work
- yard