Lifeguard
/lˈaɪˌfɡɑrd/
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Definition
(noun) A lifesaver: a rescuer, usually an expert swimmer, employed to save swimmers in trouble or near drowning at a body of water.
Sentence Examples
The lifeguard is ever ready to help others.
I applied for a job as a lifeguard at the community pool.
CEFR Practice Quiz
The ____ kept a close watch on the swimmers to ensure that everyone was safe in the deep end of the pool.