Boarding a starship you will find there are no bearings as there are on land. No North, South, East or West to work out where you are. So which way are you heading? Left and right are relative to which direction you are already going. For these reasons we need to know some parts of a ship to orientate ourselves.
The front of the ship is known as the BOW.
The rear of the ship is know as the STERN.
If you were facing the bow;
The left side of the ship is PORT.
The right side of the ship is STARBOARD.
Remember these and you’ll lessen your chances of getting lost on the next starship you are on!