A stay (rope, bar or batten), running along a ship's yard, to which is attached the head of a square sail.
A cable between two ships or from a ship to a fixed point which can be used to support a load during transfer of personnel or materiel along the cable.
A line (rope, webbing or cable), attached to a boat at the ends, to which a safety harness can be clipped to restrain falling in rough conditions and to prevent falling overboard.
A line fixed at both ends, which may be used to guide a load or a diver along the route of the line. Uses include guidance to and from the underwater work site, and as a means of controlling an underwater search.
On the deck of a boat, a line to which one can attach oneself to stay aboard on rough seas.
A particular crease in the palm.
A line from the diver to a tender at the surface control point.
A line to which a drowning or falling victim may cling.
A means or route for transporting indispensable supplies.
System or structure of vital importance to a community.
A source of salvation in a crisis.