In sailboat racing, to have a controlling position over competitors by staying between them and the next mark or buoy - a tactical maneuver in which the lead boat stays between the trailing boat and the wind or the next mark.

Openings in a ship's hull for ventilation, light and other purposes.

On a square-rigged ship, the yards are square by the braces when they are at right angles to the fore-and-aft lines of the ship.

A traditional term in the British Navy for serving out an additional tot of rum or grog to a ship's crew. In sailing ship days the main brace was spliced (in terms of drink) in very bad weather or after a period of severe exertion by the crew.

The spiral grooves between the strands of rope after it has been laid up.

In a wheel, such as a steering wheel, a spoke is a rod that extends from the hub outwards to the rim.

An articulated five-platform railcar. Used where height and weight restrictions limit the use of stack cars. It holds five 40-foot containers or combinations of 40- and 20-foot containers.

A low vertical lip or raised section around the edge of a cockpit, hatch, etc. to prevent water on deck from running below.

Place where cargo is loaded and leaves a country.

A flag signaling that a ship is about to sail and that all should report on board. It is International Code Flag "P".

Starboard.

Consists of a vessel which is a combination of oil sump and oil separator, an oil cooler and an oil filter.

A term for a circular plank edgewise, to work in the bows of a vessel.

The watches aboard ship change at 4, 8, and 12 around the clock. A watch lasts four hours and at each half hour during the watch, a bell is struck. For instance, at 12:30 a.m. there is one bell for the first half hour after midnight; at 1:00 a.m. there ar ...

The difference in pressure between any two points of a system or component.

Finely-divided water swept from crest of waves by strong winds.

An additional duty imposed to offset export grants, bounties or subsidies paid to foreign suppliers in certain countries by the government of that country for the purpose of promoting export.

Small line consisting of several loosely twisted yarns.

Sailing with the wind coming from the stern or quarter of the boat.

A device for mounting cylinders.