A barquentine is a type of sailing ship that typically has three masts with the foremast and mainmast being square-rigged and the mizzenmast being fore-and-aft rigged. Some synonyms for barquentine include brigantine, hermaphrodite brig, schooner brig, and three-masted schooner. These terms all refer to similar types of ships that have a combination of square and fore-and-aft rigged sails. The differences between them may be in the rigging configuration or the size and shape of the hull. While these terms may be used interchangeably by some, sailors and ship enthusiasts may distinguish between them based on more specific characteristics.