Buccaneer

Part of speech: noun (n.)

A robber upon the sea; a pirate; -- a term applied especially to the piratical adventurers who made depredations on the Spaniards in America in the 17th and 18th centuries. [Written also bucanier.]

Part of speech: verb (v.)

To act the part of a buccaneer; to live as a piratical adventurer or sea robber.