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WordNet-Online
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Noun life line has 4 senses
- line of life, life line, lifeline - a crease on the palm; its length is said by palmists to indicate how long you will live
--1 is a kind of wrinkle, furrow, crease, crinkle, seam, line
- 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"
--2 is a kind of support; connection, link, connectedness
- lifeline - line that raises or lowers a deep-sea diver
--3 is a kind of line
- lifeline - line thrown from a vessel that people can cling to in order to save themselves from drowning
--4 is a kind of line
--4 has particulars: ridge rope
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