bodyguard
n. countable B2 Upper Intermediate US //ˈbɑdiˌɡɑɹd// UK //bˈɒdɪɡˌɑːd// body·guard
n. a person hired to protect someone from harm or attack.
n. a person employed to provide physical protection for a specific individual against threats or violence.
The celebrity hired a bodyguard for the concert.
Her bodyguard stood by the door during the press conference.
The president's bodyguard scanned the crowd with sharp eyes, ready to intervene at the slightest sign of danger.
From body + guard.