lifeguard
UK: ˈlaɪfɡɑːd | US: ˈlaɪfɡɑːrd
n. a person employed to ensure the safety of swimmers at a beach or pool
n. a device or system designed to protect or save lives in emergencies
The word "lifeguard" is a compound of "life" (Old English līf, meaning "living existence") and "guard" (Old French garder, meaning "to protect"). It emerged in the early 20th century, specifically referring to individuals tasked with preventing drowning at beaches or pools. The term logically combines the concepts of preserving life ("life") and providing protection ("guard"), reflecting its functional role.
The lifeguard blew the whistle to warn swimmers of the strong currents.
She trained for months to become a certified lifeguard at the community pool.
Lifeguards must remain vigilant to respond quickly to emergencies.
The beach was closed because no lifeguard was on duty.
Modern lifeguards use advanced equipment like rescue tubes and defibrillators.