Capable of keeping out water.

Board, bearing instructions, that comes to a wrecked ship with a life-saving rocket line.

A wind coming from the east.

Steel disc, that is dogged down over a porthole to secure against breakage of the glass and to prevent light from showing through.

As tight as can be pulled by hand.

(1) A wind shift further forward relative to the boats direction or heading. (2) A bar or angle under a deck the same size as deck beams. It is used around stair openings in deck, small hatch openings, or at dead end of longitudinals.

A piece of trim, usually wood, used to cover and often decorate a portion of the boat, i.e., caprail.

A manmade waterway used to connect bodies of water that do not connect naturally. Canals use locks to raise and lower boats when connecting bodies of water that have different water levels.

Is the ratio of the polytropic compression energy transferred to the gas to the actual energy transferred to the gas.

Front of a container or trailer - opposite the tail.

Nautical slang for the spirit of the sea, usually in the form of a sea devil. Davy Jones's Locker is the bottom of the sea, the final resting place of sunken ships, articles lost or thrown overboard, and of men buried at sea.

(1) The rolled up part of a sail, tied with the reef lines, that is used to reduce sail area for heavy winds; To reduce the sail area. (2) A group of rocks or coral generally at a depth shallow enough to present a hazard to navigation.

A ported or closed cover for the end of a filter element.

The part of the upper deck which is abaft the mainmast, or in that general location of a ship without one. The quarterdeck was normally reserved for officers.

Finite Element Analysis.

Additional thickness of planking on a wooden ship about her waterline to give the vessel more stability.

Abbreviation for "Origin Rail Freight Station." Same as CFS at origin except an ORFS is operated by the rail carrier participating in the shipment.

A small free-moving submersible designed for exploring the ocean depths.

A stream of vapor, gas or liquid coming out fast from a narrow orifice.

Said of wind when exactly ahead; and of another vessel when her fore and aft line coincides with observer's line of sight.