security guard
Plural
security guards
1
someone who protects something such as a building, etc.
- The security guard checked IDs and ensured only authorized personnel entered the building.
- She noticed the security guard patrolling the parking lot to deter vandalism.
- The security guard responded quickly to the alarm when a door was left ajar.
- The security guard monitored surveillance cameras to watch over the store overnight.
- The security guard conducted regular inspections to make sure all security measures were in place.