生せい命めい線せんTop 15000MeaningsNoun1. lifeline; matter of life or death; indispensable thing2. life line (in palm reading)Kanji used生life命continued existence線linePitch accentせいめいせんComposed of生せい命めいlife; existence; (one's) working life; career; life force; lifeblood; soul; essenceNoun線せんline; stripe; stria; line (e.g. telephone line); wire; ray (e.g. X-ray); beam; line (e.g. of a railroad); track; route; …Noun