protector
/prəˈtɛktər/
noun
- A person or thing that keeps someone or something safe from harm or danger.
- A good sunscreen is a protector against harmful UV rays.
- The older brother felt it was his duty to be a protector for his younger sister.
- The lifeguard acted as a protector for swimmers at the beach.
- A device or covering used to prevent damage or injury.
- He wore a mouth protector while playing football.
- A surge protector keeps your electronics safe during a power outage.
- The phone case is a sturdy protector against drops and scratches.