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

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

A letter of credit that contains a limited engagement clause which states that the issuing bank promises to pay the beneficiary upon presentation of the required documents at its counters or the counters of the named bank.

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

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” ...

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

To remove the ballast from the a ship.

An instrument for measuring electrical current in amperes.

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

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

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

Seaman's call to attract attention.

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

The outboard hulls of a trimaran.

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

Bunker adjustment factor

The rear of a ship.

The total pressure measured from absolute zero ( i.e., from an absolute vacuum).