a pirate, originally one operating in the Caribbean.
"the marauding buccaneers who used to terrorize the Mediterranean coasts"
Similar: pirate, marauder, raider, sea rover, freebooter, plunderer, cut-throat, privateer, Viking, bandit, robber, desperado, adventurer, swashbuckler, corsair
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a person who acts in a recklessly adventurous and often unscrupulous way, especially in business.
"the company might be a target for an individual buccaneer seeking power and prestige"