A fabric, usually synthetic, used to make sails.

This is a factor expressing deviation of a gas from perfect gas laws.

After mast on a schooner or sailing ship carrying a spanker; usually the fourth mast of a five or six masted schooner.

A small tapering flag, which can be used for identification or communication.

A single turn of rope when a rope is coiled down.

A line used for suspending articles.

Cargo landed in excess of the quantity on manifest.

A call requesting direction in answer to the report of a lookout that an object has been sighted.

Said of a vessel when stopped and lying near the wind in heavy weather. See Heave To

A warning from aloft (heads up).

(1) A body of salt water. A very large body of fresh water. (2) The condition of the water around a boat. Heavy seas for example.

Enormous sea monster supposed to have been seen off coasts of America and Norway. Sometimes mistaken for an island.

A wooden bar which may be shipped in the capstan head for heaving around by hand (to heave up anchor or heavy objects by manpower).

Clauses introduced by charterers based on shortage of delivered cargo because of increased oil prices.

The course of a vessel after magnetic variation has been considered, but without compensation for magnetic deviation.

A sighting taken for celestial navigation at noon, when the sun is at its highest point in the sky.

To watch a vessel at anchor at the turn of tides, and cast her by the helm, and some sail if necessary, so as to keep turns out of her cables.

A document prepared by the captain of a vessel on arriving at port; shows conditions encountered during voyage, generally for the purpose of relieving ship owner of any loss to cargo and shifting responsibility for reimbursement to the insurance company.

Boards used to close the companionway.

When the water has large or breaking waves in stormy conditions.