To unload a shipping container.

Abbreviation for "Cubic Meter" (capital letters).

A running light allowed on some sailboats instead of the normal bow and stern lights. The tricolor light contains the red and green side lights and the white stern light in a single fitting that is attached to the top of the mast.

An old salt I know uses this term in reference to a "tangled mess of lines".

Illegal passenger who hides himself on board a ship in order to gain free passage or to escape from a country.

The mast aft of the mainmast in a sailing ship - the shorter mast behind the main mast on a ketch or yawl, or the third aftermost mast of a three-masted schooner or square-rigged ship.

Chocks which hold and anchor in place either in a locker or on deck.

A worn out vessel.

A method of storing a sail, e.g., by rolling the jib around the headstay.

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

In wooden ship construction, these were cylindrical pins of oak which were used to secure the planks to her timbers. Pronounced "trennels".

A gangway or gangplank. Used to cross from one ship to another, or from a ship to a pier.

Liquefied Petroleum Gas, or a carrier of LPG.

The unofficial filtration industry description for filters designed to trap small size contaminants.

A course steered by the compass that has been corrected for variation and deviation

The post that the rudder is attached to. The wheel or tiller is connected to the rudder post.

Line on a chart linking points of equal depth. also known as a Depth Contour.

A contract for transportation between a shipper and a carrier. It also evidences receipt of the cargo by the carrier. A bill of lading shows ownership of the cargo and, if made negotiable, can be bought, sold or traded while the goods are in-transit.

The anchor is under the hawse .

The helmsman.