Meaning oflifebuoysin English

Noun

1. floatation devices for emergency use
   The crew threw lifebuoys into the water to rescue the passengers.
2. torus-shaped objects that keep people afloat; lifesaving
   The lifeguards placed lifebuoys along the beach for emergency situations.
3. something that saves from difficulties (metaphorically)
   Her optimism was a lifebuoy that helped her through tough times.