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lifeboat

noun [C]
 
 
/ˈlaɪf.bəʊt/ US  /-boʊt/

Definition

a large boat that is kept ready to go out to sea and save people who are in danger, or a smaller boat kept on a ship for people to leave in if the ship is not safe or might sinkBoats and sailing craftPassenger, cargo and military ships
(Definition of lifeboat noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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