1. a person or thing that protects someone or something from harm or danger
2. a covering or device designed to prevent damage or injury

Examples

• The bodyguard served as her protector during the dangerous mission.
• Parents are natural protectors of their children.
• The knight was known as a protector of the innocent.
• She wore knee protectors while skateboarding.
• The phone case acts as a protector against drops and scratches.
• The environmental group sees itself as a protector of wildlife.
• He used a screen protector to keep his tablet safe.