lifeline
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
Synonyms: life_line line_of_life
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
Similar spelling:   life_line
  liveliness
  Liopelmidae
  Liopelma
  lifelong