Pronunciation: (līf'sā"vur), [key]
1. a person who rescues another from danger of death, esp. from drowning.
2. a person or thing that saves a person, as from a difficult situation or critical moment: That money was a lifesaver.
3. Chiefly Brit.a lifeguard.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.