A rope or line used for life-saving, typically one thrown to rescue someone in difficulties in water or one used by sailors to secure themselves to a boat
A line used by a diver for sending signals to the surface
A thing that is essential for the continued existence of someone or something or that provides a means of escape from a difficult situation
(in palmistry) A line on the palm of a person's hand, regarded as indicating how long they will live
LIFELINE, a rope used to aid a person in distress [n]