A sail placed forward of the mast, such as a jib; the sail set from the foremast on a schooner; the lowest square sail on the foremast of Square Riggers.

(1) A spar. Such as a pole used to position a sail (e.g., spinnaker pole or whisker pole, which serves the same purpose for a jib). (2) One of the two points around which the earth spins, known as the north and south poles.

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

To change a boat's direction, bringing the bow through the eye of the wind.

A measurement. Parts per million

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.

A layer of dust built up on an air filter.

A bolted rim used for attachment to another object.

To collide with a vessel head on.

To give the steersman the de-sired course to be steered.

Beams sometimes fitted over the decks for the stowage of heavy boats or cargo.

Of a system (or part thereof) is its condition at an instant of time as described or measured by its properties.

A bullying and tyrannical officer; he would drive his crew by brutality and the power of his fists.

Long wave formations during calm or light air formed by waves running into shoaling water

Ice broken into pieces, and projecting very little above sea level.

Wing-like retractable devices extending from the sides of the vessel to dampen down rolling in seas and produce a steadier, smoother, and more comfortable motion.

Sailing with the wind coming from the port side, with the boom on the starboard side.

The difference between the discharge pressure and the intake pressure.

Still, seaworthy, able.

The piece of board on which a man working aloft is swung.