Definitions of lifesaver

n a life preserver in the form of a ring of buoyant material

life belt, life buoy, life ring
breeches buoy
a life buoy in the form of a ring with short breeches for support; used to transfer people from a ship
Type of:
flotation device, life preserver, preserver
rescue equipment consisting of a buoyant belt or jacket to keep a person from drowning

n an attendant employed at a beach or pool to protect swimmers from accidents

Type of:
attendant, attender, tender
someone who waits on or tends to or attends to the needs of another

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