anchor
anchorage
anchored
battleship
big
black
boat
bollard
cable
chain
cruise
equipment
gear
harbor
hatch
heavy
hook
industrial
iron
link
marine
maritime
metal
military
mooring
naval
navy
ocean
old
port
power
rope
ropes
rust
rusty
sea
secure
security
ship
shipping
steel
strength
symbol
tether
vessel
water