Offing, largue, dehors, implies out at sea; or at a competent distance from the shore, and generally out of anchor-ground.

Offward, the situation of a ship which lies aground, and leans off from the shore.

OLERON, a name given to a code of general rules relating to naval affairs, and formed by Richard I. when he was at the island of Oleron. These have been frequently esteemed the most excellent sea-laws in the world; and are still preserved in the black book of the admiralty.

OPEN, debouclé, the situation of a place which is exposed to the wind and sea, with little or no shelter for shipping to anchor therein.

Open, ouvert, is also expressed of any distant object, to which the sight or passage is not intercepted by something lying, or coming between. Thus, to be open with any place, is to be opposite to it; as the entry of a port, road, or haven.

OPENING, a passage, or streight, between two adjacent coasts or islands.

ORDINARY, gardiens, the establishment of the persons employed by the government to take charge of the ships of war, which are laid-up in the several harbours adjacent to the royal dock-yards. These are principally composed of the warrant-officers of the said ships, as the gunner, boatswain, carpenter, deputy-purser and cook, and their servants. There is besides a crew of labourers enrolled in the list of the ordinary, who pass from ship to ship occasionally to pump, moor, remove, or clean them, whenever it is necessary.

The term ordinary is also applied, sometimes, to the ships themselves; it is likewise used to distinguish the inferior sailors from the most expert and diligent. Thus the latter are rated able on the navy-books, and have 1l. 4s. per month whereas those who are rated ordinary, have only 19s. per month.

ORLOP, (over-loop, Dutch) faux-pont, a plat-form of planks laid over the beams, in the hold of a ship of war, whereon the cables are usually coiled, and the several officers store-rooms contained.

OVER-BOARD, the state of being thrown out of a ship, or boat, into the water whereon she swims: also the act of falling from such a vessel into the sea, &c. as, the ship sprung a leak, and obliged us to throw the guns over-board; a heavy sea broke over the deck, and carried two of our men over-board.