lifeguard
/ˈlaɪfˌɡɑɹd/ noun B1- A lifesaver: a rescuer, usually an expert swimmer, employed to save swimmers in trouble or near drowning at a body of water.
- A bodyguard or unit of bodyguards, a guard of someone's (especially a king's) life or person.
- A sturdy metal bracket fixed in front of each of the leading wheels of a train to deflect small objects away from the wheels to prevent derailment.
Plural lifeguards
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A friendly lifeguard sees them.
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