Today, ship-to-ship communication could be through internet or simply the telephone (or skype or other means) but in the time of Titanic, messages were sent either by wireless telegraph, or if in sight by Morse lamp, or even by rockets (eight of which were launched from Titanic).
a ship sinker
Stern
A wreckage
an alley
To scuttle a ship is to deliberately allow entry of water for the purpose of sinking it.
they call their ship SHE
A stop for a ship is called a port of call. A cruise ship might be said to make a stopover (or port call) at a port of call.
a ship maker.
a ship sinker
a ship maker.
Call at a port.
The stern is the back end of a ship.
It's called the crew of the ship.
A ship on its first voyage is a ship that is on its maiden voyage.
It is the 'Ship's Log'.
The Helm or the ships wheel.
People who travel by ship are called Passengers.