bulkhead (n.)
- anchorage
- archway
- backstop
- bank
- bar
- barrage
- barrier
- basin
- berth
- boom
- brattice
- breakwater
- breastwork
- buffer
- bulwark
- bumper
- cofferdam
- cushion
- dam
- defense
- diaphragm
- dike
- ditch
- division
- dock
- dockage
- dockyard
- door
- doorjamb
- doorpost
- doorway
- earthwork
- embankment
- fence
- fender
- gate
- gatepost
- gateway
- groin
- harbor
- harborage
- hatch
- hatchway
- haven
- jam
- jetty
- landing
- levee
- lintel
- logjam
- marina
- mat
- midriff
- midsection
- milldam
- moat
- mole
- mound
- pad
- panel
- parapet
- paries
- partition
- pier
- porch
- port
- portal
- portcullis
- postern
- pylon
- quay
- rampart
- road
- roadblock
- roads
- roadstead
- scuttle
- seaport
- seawall
- separation
- septum
- shipyard
- slip
- stile
- threshold
- tollgate
- trap
- turnpike
- turnstile
- wall
- weir
- wharf
- work
