Meaning of lifeguard by Wiktionary Dictionary
- ( 主にUS ) an attendant, usually an expert swimmer, employed to save swimmers in trouble or near drowning at a body of water
- a lifesaver
- ( rail transport ) a sturdy metal bracket affixed in front of each of the leading wheels of a train to deflect small objects away from the wheels to prevent derailment .
Explanation of lifeguard by Wordnet Dictionary