Homonym: guard (Protector)
A "guard" is a person or device that protects or watches over something. Guards are often employed in places like banks, museums, and events to ensure safety and security. They may monitor entrances, check identification, and respond to emergencies.
In addition to human guards, there are also mechanical guards, such as security cameras and alarm systems. These devices help detect unauthorized access or suspicious activity. Both types of guards play a crucial role in maintaining safety and preventing theft or harm to people and property.