In the direction of the vessel's head. Wind ahead is from the direction toward which the vessel's head points. In a forward direction.

Placing a port on a vessel's itinerary because the volume of cargo offered at that port justifies the cost of routing the vessel.

To hold the mainsail or jib off to the side to cause the wind to blow onto the backside of the sail, used to slow a boat

A term from Latin meaning, "according to value."

That part of the ocean lying below 300 fathoms from the surface.

The title of a commander of a fleet or a subdivision of it.

An act beyond human control, such as lightning, flood or earthquake. – An unpredictable situation which is beyond the power of man. A natural event, not preventable by any human power, such as flood, storms, or lighting usually quoted as “force majeure” ...

The rear of a ship.

Seaman's call to attract attention.

An instrument for measuring electrical current in amperes.

Bunker adjustment factor

The act if striking or collision of a moving vessel against a stationary object.

A pallet so designed that the forks of a fork lift truck can be inserted from two sides only.

Compartment in the stern of a vessel used for storage; a storage space below the deck in the cockpit.

A colorless gaseous compound of nitrogen and hydrogen used in refrigeration and in making of fertilizers and explosives. Found in some ambient air conditions.

In a sailing ship carrying multiple masts, the mast set closest to the stern.

To remove the ballast from the a ship.

The outboard hulls of a trimaran.

A hole in a tank, boiler or compartment on a ship, designed to allow the passage of a man for examination, cleaning, and repairs.

The reply to an officer's order signifying that he is understood and will be obeyed (I understand).