French door
anchorage
anchorage ground
arch dam
archway
back door
backstop
bamboo curtain
bank
bar
barrage
barrier
barway
basin
bear-trap dam
beaver dam
berth
boom
brattice
breakwater
breastwork
brick wall
buffer
buffer state
bulwark
bumper
carriage entrance
cellar door
cellarway
cloison
cofferdam
collision mat
cushion
dam
defense
diaphragm
dike
dissepiment
ditch
dividing line
dividing wall
division
dock
dockage
dockyard
door
doorjamb
doorpost
doorway
dry dock
divider
partition
airlock
bunk
ceil
compartment
conduit
corridor
cylinder
deck
dome
girder
hatch
hatchway
hull
ladder
locker
panel
passageway
rail
ramp
shutter
slab
stairway
walkway
wall