Said of wind when exactly ahead; and of another vessel when her fore and aft line coincides with observer's line of sight.

Cotton yarn used for cleaning purposes.

A container designed with openings in the side and/or end walls to permit the ingress of outside air when the doors are closed.

Sailing with the tiller over to leeward by force of the wind

Said of a vessel when she is shipping water on deck and it is running off through scuppers and freeing ports.

An agreement to hold a carrier harmless with regard to a liability.

Seaman's term for the period of work on board ship for which he has been paid in advance when signing on.

Abbreviation for "Not Otherwise Indexed."

Owners or operators of vessels providing transportation to shippers. The term is also used to refer to the vessels.

Term applied to the direction of the wind when it is favorable to the course being steered.

To reeve and secure a stopper (hold a strain on a line while transferring it).

The permitted increase in pressure developed after the valve has opened. Usually expressed in percentage, ie.; 3% accumulation (A.S.M.E. Code, Section I). Flows through safety/relief valves are officially determined at these overpressure conditions.

The fitting which connects the boom to the mast.

To heave in until the vessel is riding nearly over her anchor.

Cargo discharged in excess of the quantity on the manifest.

A manmade waterway used to connect bodies of water that do not connect naturally. Canals use locks to raise and lower boats when connecting bodies of water that have different water levels.

Japanese tapered pipe thread (Female).

A naval rank next below that of admiral.

A short piece of rope secured in the bow of a small boat used for making her fast.

A lower-than-usual tariff rate assessed because a shipper offers a greater volume than specified in the tariff. The incentive rate is assessed for that portion exceeding the normal volume.