Noun life saver has 2 senses
  1. lifeguard, lifesaver - an attendant employed at a beach or pool to protect swimmers from accidents
    --1 is a kind of candy; attendant, attender, tender
  2. life buoy, lifesaver, life belt, life ring - a life preserver in the form of a ring of buoyant material
    --2 is a kind of life preserver, preserver, flotation device
    --2 has particulars: breeches buoy
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