lifeline

n.	1.	The anem given to one of the creases on the palm; its length is said by palmists to indicate how long one will live.
	2.	A line or rope which raises or lowers a deep-sea diver.
	3.	A line from a vessel that people in a body of water can cling to to save themselves from drowning.

Noun	1.	lifeline - a crease on the palm; its length is said by palmists to indicate how long you will live Synonyms: life line, line of life
	2.	lifeline - support that enables people to survive or to continue doing something (often by providing an essential connection); "the airlift provided a lifeline for Berlin"; "she offered me a lifeline in my time of grief"
	3.	lifeline - line that raises or lowers a deep-sea diver
	4.	lifeline - line thrown from a vessel that people can cling to in order to save themselves from drowning

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