lifeline has definitions from the field of nautical
1
[ noun ] (nautical) line that raises or lowers a deep-sea diver

Related terms

line

2
[ noun ] support that enables people to survive or to continue doing something (often by providing an essential connection)

Examples

"the airlift provided a lifeline for Berlin" "she offered me a lifeline in my time of grief"

Related terms

connection support

3
[ noun ] a crease on the palm; its length is said by palmists to indicate how long you will live

Related terms

wrinkle

4
[ noun ] (nautical) line thrown from a vessel that people can cling to in order to save themselves from drowning

Related terms

line ridge_rope

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