To reverse or change directions, to turn around

Shortening of the old term "boatswain," an unlicensed member of the crew who supervises the work of the deck men under direction of the first mate.

A weather prediction.

Electrical measurement. The output of one or several electric machines. Load also denotes the power carried by a particular circuit.

Flat steel stock of various thicknesses used in the construction of a ship to form the sides and decks.

Is that pressure of either the motive fluid or of the ejector gas discharge which causes an ejector to become unstable.

A legal paper or license of a boat or its captain.

Navigation rules governing waters outside designated demarcation zones

One that has the right-of-way and should maintain her course and speed during a crossing or overtaking situation, unless a collision appears imminent. (Was formerly called "the privileged vessel.")

Turning out all hands on board ship in the morning, or calling the watch for duty on deck.

British standard pipe tapered.

A navigable route on a waterway, usually marked by buoys. Channels are deep enough for ships or boats to navigate without running aground.

The Greek god of the sea.

Movement of crest of a progressive wave. Can also refer to radio waves.

The highest temperature at which well-defined liquid and vapor states exist.

To take the opposite tack when sailing to windward with another yacht.

To collide with a vessel head on.

Polyethylene or similar substance heat-treated and shrunk into an envelope around several units, thereby securing them as a single pack for presentation or to secure units on a pallet.

Nickname for a dinghy

On a square-rigged ship, the short pieces of line which hang from the yards and support the footropes on which the topmen stand while working aloft on the sails.