Rescuer (noun)

1. A person who saves someone from danger or harm.
2. A person who saves someone from drowning or other water-related emergencies.
3. A person who saves someone from a fire or other hazardous situation.

Origin:

Late 16th century: from french rescapé "escaped person", from the verb rescaper "to escape".

Examples:

1. The rescuer risked his own life to save the trapped child from the burning building.
2. The rescuer swam out to the stranded boat and pulled the drowning man to safety.
3. The rescuer's quick thinking and bravery saved many lives during the disaster.
4. The mountain rescuer was trained to save people from dangerous situations.
5. The fire department credited the rescuer with the successful rescue of several people from the burning building.