A sailor's carving or etching on bones, teeth, tusks or shells.

In navigation, the smaller angle at which two position lines on a chart intersect. The fix will be more reliable as the angle approaches 90

Originally a seaman who, not wanting to work, preferred to exist by hanging around ports and harbors and living on the charity of others. Now more generally describing any loafer around the waterfront who prefers not to work.

Across the width of a boat. Also Athwartships.

Sailor's term for soot or ashes which sometimes fell into food while it was being cooked.

Steel wire, used to support over-the-side sampling apparatus

The extreme deck fore and aft measurement of a vessel.

Go to bed without undressing.

On the land or aground.

The ratio of clearance volume to the volume swept by the compressing element.

Invisible waves in the electromagnetic spectrum that are used to communicate (radio) - and navigate (radar).

(Free On Board) (...Named Port of Shipment):An International Term of Sale that means the seller fulfills his or her obligation to deliver when the goods have passed over the ship's rail at the named port of shipment. This means that the buyer has to bear ...

To put a narrow piece of canvas around it after it has been wormed, and before it has been served.

Speed Over Ground, speed relative to bottom.

A knot used to temporarily shorten a line.

Filter, Regulator and lubricator sometimes combined in one unit

(1) When two or more boats tie up alongside each other. (2) Overlapping of edges of two ice-floes, so that one floe is partly supported by the other.

A book containing the official record of a ship's activities together with remarks concerning the state of the weather, etc.

Vessel said to be "on her beam ends" when she is lying over so much that her deck beams are nearly vertical.

A mop, formed of old rope, used for cleaning and drying decks.