A first-rate ship of the line.
Of a Royal Navy ship of the line in the Napoleonic Era: having at least 100 guns across three gun decks, a complement of 850–875, and weighing approximately 2,500 tons burthen.
Superb, exceptional; of the best sort; very high quality.
A small, light sail located high on a mast (above the skysail) and used for speed.
Someone from Wiltshire.