On wooden vessels, the frames or ribs of a ship, connected to the keel, which give shape and strength to the ship's hull.

A type of journal bearing in centrifugal air compressors.

Millions of cubic feet per 24 hour.

A block and tackle attached to the boom and the deck to prevent the main from gybing when sailing downwind

An elevated guardrail set up at the bow of a vessel. When erected at the stern, it is called a pushpit.

A conduit for disposing of refuse-especially that the ship/s galley.

A draft that matures either a certain number of days after acceptance or a certain number of days after the date of the draft.

The measurement of the angle between the bottom of a boat and its widest beam. A vessel with a 0

To break into a conversation.

To mark a course on a chart.

Country, island or territory the vessel visits.

Spiked pole used for propelling a barge or boat by resting its outboard end on an unyielding object.

A pole used as part of the sailboat rigging, such as masts, booms, gaffs, yards, etc. A vertical spar is a mast.

A positive displacement type compressor.

An extension to the tiller allowing the helmsman to steer while hiking. This may be desired for improved visibility or stability.

One complete turn of the line around a cleat, spar or another line.

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

When used in pricing terms such as "Ex Factory" or "Ex Dock," it signifies that the price quoted applies only at the point of origin indicated.

In water transportation, the deliberate sacrifice of cargo to make the vessel safe for the remaining cargo. Those sharing in the spared cargo proportionately cover the loss.