security guard
US /sɪˈkjʊr.ə.t̬i ˌɡɑːrd/
UK /sɪˈkjʊr.ə.t̬i ˌɡɑːrd/

1.
ochroniarz, strażnik
a person whose job is to protect a building, place, or person and to prevent crime
:
•
The security guard checked our bags at the entrance.
Ochroniarz sprawdził nasze torby przy wejściu.
•
A security guard patrols the building every hour.
Ochroniarz patroluje budynek co godzinę.