lifesaver
/ˈlaɪfˌseɪvəɹ/ noun C2- A lifeguard or other rescuer. · My dad loves his job as a surf lifesaver.· Paramedics are not just ordinary workers but lifesavers with a very important job.
- A life buoy. · They threw him a lifesaver and then hauled him up onto the boat.
- Any lifesaving tool or item of supplies. · When I got lost in the woods, my Swiss Army knife was a lifesaver.
- Someone or something that is very useful or helpful. · Thank you so much for fixing my car; you're a real lifesaver!· This shop is a lifesaver on a hot day when you're craving a cold drink.
Plural lifesavers
Learn lifesaver in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.