life-preserver

n (US) life-jacket 救生衣.

lieutenancy, lieutenant, life, life annuity, life assurance, life insurance, life cycle, life expectancy, Life Guards, life history, life interest, life peer, life sciences, life story, life work, life-and-death (also life-or-death), life-blood, life-boat, life-giving, life-guard, life-jacket, life-raft, life-saver, life-saving, life-size, life-size, life-sized, life-span, life-style, life-support, life-time, life-work, lifebelt (also lifebuoy), lifeboat, lifeless, lifelessly, lifelessness, lifelike, lifeline, lifelong, lifer, lifestyle,