IPA: //ˈlaɪfˌɡɑrd//
KK: /ˈlaɪfˌɡɑrd/
To work in a position that involves ensuring the safety of people swimming or participating in water activities.
She lifeguards at the local pool during the summer.
Past: lifeguarded
Past Participle: lifeguarded
A trained person who watches over swimmers to keep them safe, especially at beaches or pools.
The lifeguard quickly jumped into the water to save the struggling swimmer.
Lifeguard → It is formed from "life" (from Old English "līf", meaning existence or living) and "guard" (from Old French "guarder", meaning to protect or watch over). The word "lifeguard" refers to a person who protects or watches over individuals in a swimming area to ensure their safety and well-being.
Think of someone who is there to 'protect' ('guard') your 'life' — that's why a lifeguard is someone who watches over you in the water.
No commonly confused words.