A lit navigational aid such as a lighthouse that can be used at night or in poor visibility.

(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.

Arrival at land

After or trailing edge of a sail; the after edge of a fore-and-aft sail and the outer edges of a square sail.

The swiveled opening at the top of a ventilator.

The foremost sail; a triangular shaped foresail forward of the foremast.

A stationary vessel carrying a light used for navigation, serving the same purpose as a lighthouse.

A small local current usually caused by tidal streams as they ebb and flow around or against obstructions.

A propeller drawn through the water that operates a meter on the boat registering the speed and distance sailed

A penalty charge against shippers or consignees for delaying the carrier's equipment beyond the allowed free time. The free time and demurrage charges are set forth in the charter party or freight tariff.- See also Detention and Per Diem.

The length of the boat at the waterline.

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

Alternatively letting the sails draw, then spilling wind so as to keep a vessel more or less in one place until space is available, marking time.

To store a yacht away on land for the winter

To keep a weather eye is to be on the alert (heads up).

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.

To haul in until the line has a strain upon it.

Cotton yarn used for cleaning purposes.

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