stevedore—A man whose task it is to stow the cargoes of ships and to unload cargoes.
stoke hold—That compartment in a steamship from which the fires under the boilers are stoked or tended.
stoker—A man who stokes or feeds the fires beneath the boilers of a ship.
stow—To stow a cargo is to pack it into a ship so that it will not shift as the vessel pitches and rolls.
studding sails—On square-rigged ships narrow supplementary sails are sometimes set on small booms at the sides of the principal square sails. These are studding sails.
submarine—A ship which is so designed as to be able to dive beneath the surface.
supercargo—A member of a ship’s crew whose duties have only to do with superintending transactions relating to the vessel’s cargo.
superdreadnaught—A battleship of considerably greater strength than the original British battleship Dreadnaught, which gave its name to a class of ships.
swamp—To be swamped is to have one’s boat filled with water, but not necessarily to sink.
sweeps—Very large and clumsy oars, sometimes used on sailing ships to move them in calms, or in narrow places where it is impracticable to use their sails. They are also sometimes used on barges and rafts.