Definition
In maritime law, the right-hand side of a vessel as perceived by an observer standing aboard and facing forward (toward the bow). The term is used in navigation rules, collision regulations, and admiralty proceedings to establish the relative position of vessels, their points of sail, and the assignment of right-of-way obligations. "Starboard tack" describes the course of a vessel when the wind strikes her from the starboard side — a condition relevant to determining which vessel holds the right of way under the rules of the road at sea.
Common Language
Modern common usage (Wiktionary): The right-hand side of a ship, boat, or aircraft when facing the front or bow; used to unambiguously describe directions relative to the vessel rather than to any individual aboard. Also, one of the two traditional watches aboard a ship.
Historical common usage (Webster's 1913): "That side of a vessel which is on the right hand of a person who stands on board facing the bow; — opposed to larboard, or port."
The common and legal meanings are effectively identical in spatial content. The legal significance is not in the definition itself but in its operational consequences: in admiralty proceedings, collision cases, and navigation regulations, starboard position and starboard tack carry specific right-of-way implications. A term that is merely directional in ordinary speech becomes determinative of liability in a maritime collision dispute.
Common Confusion
Starboard is the right-hand side; port (formerly larboard) is the left. The older term "larboard" for the left side was officially replaced in nautical and regulatory usage by "port" to eliminate confusion, since "larboard" and "starboard" sounded similar under noisy conditions. Researchers encountering older admiralty records, sailing instructions, or pleadings may find "larboard" where modern equivalents would read "port." The two terms are not interchangeable with any modern legal significance, but the substitution must be recognized in historical sources.
Why It Matters in Research
Starboard appears in admiralty and maritime law primarily in the context of collision cases and navigation rules. Its significance is positional and relational: whether a vessel was on a starboard tack, whether another vessel was to the vessel's starboard side, and whether the applicable navigation rules required a give-way or stand-on response all turn on precise use of this term.
Researchers working in historical admiralty records should note that collision liability analysis in older cases frequently turns on a fact-specific reconstruction of which vessel was on which tack or side at the moment of collision. Courts treated starboard tack as conferring the right of way over a vessel on the port tack under the prevailing rules of the road, and this rule is documented in early federal collision decisions.
The Black's 2nd edition entry references Burrows v. Gower, 119 Fed. 617 (D.C.), as an illustrative case involving the "starboard tack" concept. Researchers should be aware that "D.C." in early federal reporter citations refers to a federal district court, not the District of Columbia circuit, and the citation style of the era can cause confusion.
International codification of port/starboard rules through collision regulations (most prominently the International Regulations for Preventing Collisions at Sea, or COLREGs) postdates the period covered by Black's 2nd edition. Researchers tracing the evolution of right-of-way rules from common law and early statutory frameworks into modern international convention will need to track this regulatory lineage separately; the dictionary entry alone does not capture it.
Historical Dictionary Support
Black's 2nd edition offers a lean, accurate definition: the right-hand side of a vessel when the observer faces forward, with "starboard tack" defined as the course sailed when the wind is on the starboard bow. The entry cites Burrows v. Gower as authority for the tack definition, which is consistent with the navigational rule that the vessel on starboard tack has right of way over a vessel on port tack. Webster's 1913 is substantively identical. No significant divergence exists among the historical dictionary sources on the spatial meaning of the term. What the historical dictionaries do not address is the procedural and evidentiary role that starboard/port determinations played in admiralty collision litigation — that dimension is a matter of case law and navigation regulations, not dictionary definition.
Jurisdictional Note
Starboard as a navigational term operates within admiralty law, which in the United States is a matter of federal jurisdiction. The applicable navigation rules in domestic waters are governed by federal statute and regulation; international voyages are subject to COLREGs. The term itself carries no jurisdictional variation — the right-hand side of a vessel is the same in every jurisdiction — but the right-of-way rules that attach to starboard position may differ between inland and international waters under applicable regulatory frameworks.