0 someone whose job involves preventing people going into places without permission, transporting large amounts of money, or protecting goods from being stolen
1 someone whose job is to guard buildings, goods in stores, money that is being transported, etc.:
The home is surrounded by a fence, and a security guard was at the gate every 24 hours.
The robot is described as 'child-like' and has been designed to combine the roles of nurse, companion, and security guard.
The security guard said he didn't allow/see anyone to enter the building.
It would be extremely foolish for this country to lower its security guard by sacrificing that protection.
Does he question the security guard before making a decision?
Together with a security guard they lifted me down the steps.
But another example would be a security guard guarding an empty building and working long hours on a basic rate of £2·50 an hour.
One could well have the need to gain access through a security guard who would not be an occupier but an authorised person.