what does larboard mean
â¢ LARBOARD (noun). The noun LARBOARD has 1 sense: 1. the left side of a ship or aircraft to someone facing the bow or nose. Familiarity information: LARBOARD used as a noun is very rare.lassified under: Nouns denoting man-made objects. Synonyms: larboard; port. Hypernyms (larboard is a kind of...): side (an extended outer surface of an object). Antonym: starboard (the right side of a ship or aircraft to someone facing the bow or nose).