Black diamond, ball, and cone shapes hoisted on vessels during the day to indicate restricted movement, ability, or type. For example three balls means aground.

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).

An object used as a reference point while navigating.

A naval rank next below that of lieutenant-commander, which is next below that of captain (the equivalent of commander).

A fabric, usually synthetic, used to make sails.

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

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

Boards used to close the companionway.

Open Shelter Deck ship.

The power that is consumed to overcome the frictional losses when operating in an unloaded condition.

A line used for suspending articles.

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

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

Said of an object that is secured to another; attached, fixed, secured.

A canvas cover secured over a funnel when not in use. Sailor's headwear, woolen type, capable of covering the ears in cold weather.

The degree to which all the forces on a boat are symmetrical so the vessel sails with just a slight weather helm.

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

A warning from aloft (heads up).

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

A loop shaped fitting attached to the deck, spar, boom, etc., used to secure a line or block to some part of the vessel.