lifesaver

Definitions

life + saver = one who saves a life. Used both literally (a rescuer) and very commonly in a casual, exaggerated way: 'you're a lifesaver' = thank you for the timely help.

Common Collocations

• 1.a real lifesaver真是救星
• 2.you're a lifesaver你帮了大忙

Example Sentences

• 1.

  Thanks for the ride — you're a real lifesaver!

• 2.

  The instructions were a lifesaver when I got lost.