A navigational aid used in the United States and Canada to mark a channel. Green triangular daymarks should be kept on the left when returning from a larger to smaller body of water.

An opening in a deck, cockpit, toe-rail or gunwale to allow water to run off the deck and drain back into the sea.

A mast that is in place is stepped.

The speed and direction of the wind felt or measured when stationary. The motion of a boat will cause the wind to appear to be coming at a different direction and speed, which is known as apparent wind

Horizontally mounted block used to re-direct a line on deck.

Said of a vessel with little stability, whether due to design or to stowage of cargo.

The process of assimilating many small shipments into one large shipment at a central point so that economies of scale may be achieved; to commence discharge of cargo.

Pounds per square inch, differential.

Above the main deck.

An extra charge sometimes added to steamship freight rates; justified by higher fuel costs. (Also known as Fuel Adjustment Factor or FAF.)

The marrying of two or more portions of one shipment that originate at different locations, moving under one bill of lading, from one shipper to one consignee. Authority for this service must be granted by tariff publication. See Bill of Lading.

The fluid entering a component.

The space provided for stowage of provisions or other materials.

Two short pieces of timber fixed horizontally fore and aft on each side of the lower masthead of a square rigged vessel and used to support the topmast, the lower crosstrees, and the top.

The place to which a shipment is consigned.- The place where carrier actually turns over cargo to consignee or his agent.

A measurement applied to filters or filter media to indicate the particle size at which suspended solids above that size will be removed.

A short spar under the cap of the bowsprit used for holding down a jib boom.

An abandoned vessel at sea (a danger to navigation) or Any abandoned vessel.

The tendency in a boat to keep an upright position or to return to it when careened over.

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.