antenna
artillery
battle
battleship
block
blue
box
cable
call
communication
construction
dock
editorial
engineer
equipment
fan
grey
harbor
internet
landmark
mast
microcircuit
military
naval
navy
operator
phone
pole
port
power
provider
satellite
sea
ship
signal
sky
stick
technology
tourism
tower
transmission
travel
trunk
uss
vessel
voltage
war
warship
water
wire