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

A rope net to catch the jib when it is lowered.

Navigable channel.

A boat that has rolled so that she is lying on her side or even rolled completely over (can be caused by a sudden gust or squall). A boat with appropriate ballast should right herself after being knocked down.

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

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

A watch tackle (small, handy block and tackle for general use).

When all the sails are shaking.

To leave a ship without authority (deserting).

An absolute temperature scale. ((

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.

Maintains and monitors radio, sends and receives messages. Often maintains electronic navigation. Latest replaced with certified GO (Deck officer)

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

A small portable compass.

Navigation and Inspection Circular (US Coast Guard)

To windward, in the direction of the eye of the wind; toward the wind; in the direction from which the wind is coming

Costs that vary directly with the level of activity within a short time. Examples include costs of moving cargo inland on trains or trucks, stevedoring in some ports, and short-term equipment leases. For business analysis, all costs are either defined as ...

To untie.

To stand at the mast and pull down on a halyard as another crewmate winches it in.