Starboard is the right-hand side of a vessel, defined relative to someone facing forward toward the bow — a fixed reference point tied to the ship, not to whoever happens to be speaking.
Why “Right” Doesn’t Work Aboard Ship
A person facing forward and a person facing aft (toward the stern) have opposite “left” and “right” — genuinely dangerous ambiguity if used in navigation or emergency communication. “Starboard” fixes this: it always means the same physical side of the ship, regardless of which direction any individual crew member happens to be facing at the time.
Port and Starboard: Fixed References
- Starboard — right side, facing forward
- Port — left side, facing forward
These never change, never depend on the speaker’s orientation, and are universally understood across languages and nationalities — exactly the reliability needed for helm orders, mooring commands, and emergency communication.
Where the Term Comes From
“Starboard” derives from Old English/Norse terms referring to the steering oar, which on early vessels was mounted on the right side of the ship — the origin of “steer-board” side, which evolved into “starboard.”
Starboard Navigation Light
A vessel’s starboard side is marked with a green navigation light, visible from dead ahead to abeam on that side — part of the standard lighting configuration that lets other vessels judge your heading and aspect at night, tested extensively in COLREGs.
Starboard in COLREGs
“Give way to starboard” and altering course to starboard are common instructions in collision-avoidance rules — for instance, in a head-on meeting situation, both vessels are required to alter course to starboard, passing port-to-port.
Exam Relevance
Correct, fixed use of port and starboard — including their role in navigation light configuration and standard helm orders — is foundational, extensively-tested Navigation vocabulary in deck officer competency exams.