Not attached to the shore or the ground in any manner. Usually, but not necessarily, moving through or making way through the water.

In square-rigged vessels, short lines at the lower end of the futtock shrouds used to bring in the shrouds tighter to give room to brace the yards at a sharper angle when sailing close hauled.

One carrier assumes the charges of another without any increase in charges to the shipper.

Term for disabled vessel that had to fall out of a convoy and thus became easy prey for submarines.

Used for lashing down sails, awnings, etc., a series of round turns where the end is passed over the standing part and under the bight and pulled taut on each turn.

Bar gauge (similar to the acronym "psig")

A deviation to move cargo on the return leg of a voyage for the purpose of minimizing ballast mileage and thereby reducing transportation costs.

A metal plate fitting on the deck that can be opened to take on fuel or water

To revolve the drum of a capstan, winch or windlass. (Pulling with mechanical deck heaving gear).

A temporary repair or replacement using improvised materials and parts.

Generally speaking the word amidships means in the middle portion of a vessel.

A shifting of the wind direction, opposite of backing. Clockwise in the northern hemisphere, counter-clockwise in the southern hemisphere.

The error in a compass reading caused by the heel of a boat.

Are any material with an affinity for moisture. These analyzers use sensing elements that contain moisture adsorbing material. A change in the moisture content of the element is detected by an electric network and is used as a measurement of dew point

An old name for high waves when they break with a white crest.

(1) A sailing vessel common in the Far East. It's flat-bottomed, high sterned, has square bows, and has two or three masts carrying lugsails. (2) Old and condemned rope.

Privilege to use the rate producing the lowest charge.

A navigation instrument used to measure the apparent height of a landmark whose actual height is known, such as the top of a lighthouse. From this information, the ship's distance from that landmark can be calculated.

To remove water from the boat by hand, bucket, pump etc.

The falling tide when the water recedes out to the sea and the water level lowers; a period or state of decline.