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| GAFF | A spar, to which the head of a fore-and-aft sail is bent. |
| GAFF-TOPSAIL | A light sail set over a gaff, the foot being spread by it. |
| GAGE | The depth of water of a vessel. Also, her position as to another vessel, as having the weather or lee gage. |
| GALLEY | The place where teh cooking is done. |
| GALLOWS-BITTS | A strong frame raised amidships, to support spare spars, &c., in port. |
| GAMMONING | The lashing by which the bowsprit is secured to the cut-water. |
| GANG-CASKS | Small casks, used for bring water on board in boats. |
| GANGWAY | That part of a vessel's side, amidships, where people pass in and out of the vessel. |
| GANTLINE | (See GIRTLINE.) |
| GARBOARD-STRAKE | The range of planks next the keel, on each side. |
| GARLAND | A large rope, strap or grommet, lashed to a spar when hoisting it inboard. |
| GARNET | A purchase on the main stay, for hoisting cargo. |
| GASKETS | Ropes or pieces of plated stuff, used to secure a sail to the yard or boom when it is furled. They are called a bunt, quarter, or yard-arm gasket, according to their position on the yard. |
| GIMBLET | Tu turn an anchor round by its stock. To turn anything round on its end. |
| GIRT | The situation of a vessel when her cables are too taut. |
| GIRTLINE | A rope rove through a single block aloft, making a whip purchase. Commonly used to hoist rigging by, in fitting it. |
| GIVE WAY! | An order to men in a boat to pull with fore force, or to begin pulling. The same as, Lay out on your oars! or, Lay out! |
| GLUT | A piece of canvass sewed into the centreof a sail near the head. It has an eyelet-hole in the middle for the bunt-jigger or becket to go through. |
| GOB-LINE or GAUB-LINE | A rope leading from the martingale inboard. The same as back-rope. |
| GOODGEON | (See GUDGEON.) |
| GOOSE-NECK | An iron ring fitted to the end of a yard or boom, for various purposes. |
| GOOSE-WINGED | The situation of a course when the buntlines and lee clew are hauled up, and the weather clew down. |
| GORES | The angles at one or both ends of such cloths as increase the breadth or depth of a sail. |
| GORING-CLOTHS | Pieces cut obliquely and put in to add to the breadth of a sail. |
| GRAFTING | A manner of covering a rope by weaving together yarns. |
| GRAINS | An iron with four or more barbed points to it, used for striking small fish. |
| GRAPNEL | A small anchor with several claws, used to secure boats. |
| GRAPPLING IRONS | Crooked irons, used to seize and hold fast another vessel. |
| GRATING | Open lattice work of wood. Used principally to cover hatches in good weather. |
| GREAVE | To clean a ship's bottom by burning. |
| GRIPE | The outside timber of the fore-foot, under water, fastened to the lower stem-piece. A vessel gripes when she tends to come up into the wind. |
| GRIPES | Bars of iron, with lanyards, rings and clews, by which a large boat is lashed to the ring-bolts of the deck. Those for a quarter-boat are made of long strips of matting, going round her and set taut by a lanyard. |
| GROMMET | A ring formed of rope, by laying round a single strand. |
| GROUND TACKLE | General term for anchors, cables, warps, springs, &c. everything used in securing a vessel at anchor. |
| GUESS-WARP or GUESS-ROPE | A rope fastened to a vessel or wharf, and used to tow a boat by; or to haul it out to the swing-boom-end, when in port. |
| GUN-TACKLE PURCHASE | A purchase made by two single blocks. |
| GUNWALE | The upper rail of a boat or vessel. (Pronounced gun-nel.) |
| GUY | A rope attaching to anything to steady it, and bear it one way and another in hoisting. |
| GYBE | To shift over the ooom of a fore-and-aft sail. (Pronounced jibe.) |
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