Bodyguard and Watchdog

Bodyguard noun - Someone who escorts and protects a prominent person.

Watchdog and bodyguard are semantically related In some cases you can use "Watchdog" instead a noun "Bodyguard".

Watchdog noun - A dog trained to guard property.

Bodyguard and watchdog are semantically related in caretaker topic. Sometimes you can use "Bodyguard" instead a noun "Watchdog", if it concerns topics such as person who guards and manages.