Gally - A low, flat ship propelled partly, or wholly by oars (Intermediate)

Gangplank - A board or ramp used as a makeshift footway between a ship and a pier (Noob)

Gangway - A passage along either side of a ship's upper deck/A gangplank/An interjection used to clear a passage through a crowded area (Intermediate)

Gibbet (Cage) - Chains in which the corpses of pirates are hung and displayed in order to discourage piracy (Intermediate)

To Go on Account - A pleasant term used by pirates to describe the act of turning pirate (Noob)

Grog (also Spirits) - An alcoholic liquor, especially rum diluted with water (Noob)

Grog Blossom - A redness on the nose/face of persons who drink ardent spirits to excess (Noob)

Gun - A cannon (Noob)

Gunwalls - The sides of the top deck which act as a railing around the deck, and have openings where heavy arms or guns are positioned (Noob)