To lift or raise, such as a sail or a flag.

Adjustable stays used to support and control tension on the mast when the wind is from abaft the beam; temporary backstays used to stabilize the mast and prevent undue flexing due to the pumping action of the sea.

The mechanical power required to compress polytropically and to deliver, through the specified range of pressures, the gas delivered by the compressor.

The pressure encountered on the return side of a system.

Legendary opportunists who lured vessels onto shoals during nights when there was no moonlight to illuminate the coastline.

A wind coming from the southwest

Cabin; sleeping compartment.

The metal axle of a block upon which the sheave revolves.

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

See Owner Code.

The cabin towards the front of the vessel.

Wood boards used to cover the ribs, frames, deck or hull of a wooden vessel.

Blower.

Still, seaworthy, able.

A two-masted vessel with foremast square rigged, and mainmast fore and aft rigged. Originally, a ship of brigands, or pirates.

Said of a line that leads from its point of attachment towards the bow of the ship.

Green and red lights on the starboard and port sides of the boat required for navigation at night. Each light is supposed to be visible through an arc of 112.5

A contract term meaning both parties agree to provide something for the other.

Has to do with the properties of air-water vapor mixtures in the atmosphere.

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