lifeguard
life·guard /ˈlaɪfɡɑːd $ -ɡɑːrd/
noun [countable]
someone whose job at a beach or swimming pool is to help swimmers who are in danger
life·guard /ˈlaɪfɡɑːd $ -ɡɑːrd/
noun [countable]someone whose job at a beach or swimming pool is to help swimmers who are in danger