1The lifeguard on duty immediately responded to the distressed swimmer and pulled him to safety.
2She worked as a lifeguard at the local pool during her summer break from college.
3The lifeguard blew his whistle to warn the children to stay close to the shore.
4Before becoming a professional surfer, he worked as a lifeguard to support himself.
5The hotel hired additional lifeguards to ensure the beach was safe for guests during peak season.