someone who robs at sea or plunders the land from the sea without having a commission from any sovereign nation
source: WordNet 3.0
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.
source: Webster 1913
verb
live like a buccaneer
source: WordNet 3.0
To act the part of a buccaneer; to live as a piratical adventurer or sea robber.
