How to say "lifeline" in Japanese

Choosing the right word
  • 命綱いのちづなCommon
    nounThe concrete sense: an actual rope or tether securing a life, such as a climber's safety rope or a worker's tether at height. Figuratively it can mean something one depends on for survival.
  • 生命線せいめいせんCommon
    nounThe abstract sense: something indispensable that survival or success hinges on — a supply route, a key industry, a source of income. Choose this when 'lifeline' means a crucial support rather than an actual rope.

Use 命綱 for a physical rope or tether that keeps someone alive, and 生命線 for the abstract sense: something indispensable — a route, supply, or resource — that survival or success hinges on.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents

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