bodyguard

Từ điển Oxford Advanced Learner 8th

body·guard [bodyguard bodyguards] BrE [ˈbɒdiɡɑːd] NAmE [ˈbɑːdiɡɑːrd] noun countable singular or plural verb
a person or a group of people who are employed to protect sb
•The President's bodyguard is/are armed.

Example Bank:
•He never goes anywhere without his personal bodyguards.
•She has to have an armed bodyguard wherever she goes.
•a former bodyguard to the prince
•A personal bodyguard was assigned to her and is with her day and night.