A wire or rope contrivance placed around cargo and used to load or discharge it to/from 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.

In maritime warfare, a declaration published by a power forbidding sea-borne trade with an enemy.

Is a compression in which the temperature of a gas remains constant.

ISO.

A line drawn on a chart, as a result of a bearing, along which the boat is positioned

Seller is responsible for goods and preparation of export documentation until actually placed aboard the vessel.

The act of supporting anything by propping or shoring it up.

ACRONYM - Compressed natural gas, primarily methane.

A metal plate, strap, or rod bolted to the hull structure to which the lower ends of shrouds and stays are attached

On steam vessels has responsibility for the boilers, on diesels, the evaporators and the auxiliary equipment.

A large balloon shaped lightweight sail used when running or reaching. Spinnakers are made of cloth very similar to that used for parachutes, which is why you may also hear them called chutes, or kites.

Starboard.

Point at which all of the force of the wind can be thought to concentrate; the point in the sail plan that is the balance point for all the aerodynamic forces

Same as two blocks.

A "C" shaped fitting which can be slipped over the boom, for example, when the sail has been roller reefed to allow the boom vang to be reattached.

Port where cargo is unloaded and enters a country.

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

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

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