To attach a boat to a mooring, dock, post, anchor, etc.

An anchor or weight, permanently attached to the sea floor, with a buoy going to the surface, used to hold the boat in a certain area.

Securing to a dock or to a buoy, or anchoring with two anchors.

A strong pair of iron, steel or wooden posts on a ship's deck, around which ropes or cables are wound and held fast.

A buoy secured to a permanent anchor sunk deeply into the bottom.

A winch with the ability to hold and haul a tensioned mooring rope and having a capacity for rope storage, controlled solely by hand.

Mobile offshore production

Mobile Offshore Production Unit.

A language of "dots" and "dashes" used to send messages, either sound using radio waves, or light using a searchlight or Aldis lamp.

Loan issued against some security

Motor

Small birds that foretell bad weather and bad luck.

A machine supplied with external energy that is converted into force and/or motion.

(1) An engine. (2) The act of using an engine to move a boat.

The number of revolutions that the motor turns in a given time period (i.e. revolutions per minute, rpm).

Sailing with the motor on and in gear

Maximum breadth of a ship, measured from the insides of her plating.

An attachment point for another object.

A particular pattern of snow sampler having an internal diameter of 1.485 inches so that each inch of water in the sample weighs one ounce.

Any conventional barometer fitted with an extended scale so that atmospheric pressure measurements may be made at both high and low altitudes.