an attendant employed at a beach or pool to protect swimmers from accidents
<noun.person>
a life preserver in the form of a ring of buoyant material
<noun.artifact>
The prepayment tactic has proved to be a lifesaver at some shops.
A lifesaver, many say, are newcomers' groups like the New Neighbors League.
Gary Bennett considers himself a lifesaver, trying to rescue babies from poverty and disease in Central America.
A properly executed power of attorney can be "a real lifesaver," says Eunice Salton, a vice president of the New York Institute of Finance.
Ironically, however, the sport has been a lifesaver around here more than once.
Canola may become an economic lifesaver for farmers in the South and Midwest as the low-fat cooking oil squeezed from the plant's seeds becomes more popular with health-conscious consumers.