Ahoy: A greeting or way to get someone's attention
Avast: A command to stop or pay attention
Aye: A confirmation that an order is understood
Blimey: An expression of disbelief or disappointment
Booty: The loot taken from a ship
Davy Jones's locker: A reference to burials at sea
Dead men tell no tales: A pirate belief that the dead can't tell secrets
Heave: A command to stop or come to a halt
Matey: A pirate's friend
Parley: A conference between opposing sides to reach an agreement
Prize: A ship captured by pirates
Run a shot across the bow: A command to fire a warning shot
Savvy: A question to ask if someone understands something
Shiver me timbers: An expression of surprise, often used after a ship is hit
Yo ho ho: A nautical term used to keep people in rhythm during hard labor