lifesaver

life·sav·er

L0160000 (līf′sā′vər)n.1. One that saves a life.2. See lifeguard.3. One that provides help in a crisis or emergency.4. A life preserver shaped like a ring.

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life′sav′ing n.

life•sav•er

(ˈlaɪfˌseɪ vər)

n. 1. one who rescues another from danger of death, esp. from drowning. 2. one that saves a person, as from a difficult situation or critical moment. [1880–85] life′sav`ing, adj., n.

Thesaurus

Noun	1.	lifesaver - an attendant employed at a beach or pool to protect swimmers from accidentslifeguardattendant, attender, tender - someone who waits on or tends to or attends to the needs of another
	2.	lifesaver - a life preserver in the form of a ring of buoyant materiallife buoy, life ring, life beltbreeches buoy - a life buoy in the form of a ring with short breeches for support; used to transfer people from a shipflotation device, life preserver, preserver - rescue equipment consisting of a buoyant belt or jacket to keep a person from drowning