To attach a boat to a mooring, dock, post, anchor, etc.

A position of a flag when lowered part way in salute (method of salute between vessels, like planes dipping wings).

Pieces of ice, about the size of a small house, that have broken off a glacier.

When an anchored vessel is forced, by wind or current, to swing across her anchor so as to risk fouling it with her own cable, she is said to break sheer.

(1) A round eye through which a line is led, usually in order to change the direction of pull. (2) A thick piece of glass set flush in the deck to admit light below.

Back pressure.

Material passed into the effluent stream composed of foreign materials incorporated into the filter medium.

A person or firm, licensed by the treasury department of their country when required, engaged in entering and clearing goods through Customs for a client (importer).

A government document declaring designated goods to be shipped out of the country. To be completed by the exporter and filed with the U.S. Government.

A container fitted with a rear door and a minimum of one side door.

On gaff-rigged sailing vessels the luff of the mainsail is secured to the mast by wooden hoops, which slide up or down the mast as the sail is raised or lowered.

An inland location where cargo is received by the ocean carrier and then moved to a coastal port for loading.

A horizontal pole or spar attached to the mast to which the foot (lower edge) of the sail is fastened

Closing small leaks in a vessel's underwater body by drawing a sail, filled with oakum, underneath her.

Confined to an anchorage or haven through being unable to proceed because of stormy weather.

An adjustable section of the rudder that allows the rudder to be corrected for lee helm or weather helm.

The bottom of a wave, the valley between the crests.

Wood or metal supports (Dunnage) to keep shipments in place to prevent cargo shifting.

Environmental contaminant that ingresses due to the action of the system or machine.

To sail towards the direction from which the wind blows by making a series of tacks. A point of sail also known as sailing close hauled.