board

boat

border

bridge

captain

cargo

coast

coastguard

cokpit

command

computer

container

containership

contrail

control

course

cruise

display

doppler

equipment

export

frigate

frontier

guard

harbour

instrument

learn

maneuver

maneuvering

manoeuvre

marine

maritime

measure

nautical

naval

navigation

ocean

panel

radar

sailors

screen

sea

ship

simulator

system

technology

training

vessel

warship

yacht