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

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

A small round platform, smaller than a Crow's Nest, which was placed at the top of the mast to provide a greater range of vision from a ship at sea.

A boom on a jib or staysail.

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

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

Abbreviation for:- Port of Loading.- Petroleum, Oil, and Lubricants.

Place where cargo is loaded and leaves a country.

Length of chain used for putting around logs or steel products.

A combination of one or more blocks and the associated tackle necessary to give a mechanical advantage. Useful for lifting heavy loads.

Fast boat used for passenger and cargo traffic in fairly sheltered waters.

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

A pair of vertical wooden or iron heads on board ship, used for securing mooring or towing lines. Similar to dock bollards.

An articulated five-platform rail car that allows containers to be double stacked. A typical stack car holds ten 40-foot equivalent units (FEU's).

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

ACRONYM - Compressed natural gas, primarily methane.

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.

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.

Small line consisting of several loosely twisted yarns.

The process of declaring the importation of foreign-made goods into the United States for use in the United States.