/ ˈlaɪfseɪvə(r); NAmE / noun
1.
a thing that helps sb in a difficult situation; sth that saves sb's life :
The new drug is a potential lifesaver.
2.
(also ˈsurf lifesaver ) ( AustralE , NZE ) = lifeguard
/ ˈlaɪfseɪvə(r); NAmE / noun
1.
a thing that helps sb in a difficult situation; sth that saves sb's life :
The new drug is a potential lifesaver.
2.
(also ˈsurf lifesaver ) ( AustralE , NZE ) = lifeguard
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005