"Barkantine" is a relatively unknown term used to describe a sailing vessel that was popular during the 19th century. Some common synonyms for this type of ship include "barquentine" (the more commonly used spelling), "barkentine" or "barkantine rig."
Other nautical terms that may be used in place of "barkantine" include "brigantine" (a two-masted vessel with square-rigged sails on the foremast and fore-and-aft rigged sails on the mainmast) or "schooner" (a type of sailing ship with two or more masts, typically fore-and-aft rigged on all masts).
While these terms may have slight differences in their sail configurations or overall size, they all share similarities with the barkantine and represent the rich history of sailing ships throughout the ages.