The fire guards are responsible for ensuring the safety of the building.

The gate guards are responsible for checking IDs and ensuring the security of the premises.

He was caught off-guard by the sudden noise.

I have a guard dog to protect my house.

The security guard patrolled the building to ensure safety.

The guard station is located at the entrance of the military base.

He wore a nose guard to protect his nose during the game.

The security guards patrol the building every night.

The football players wore nose guards to protect their noses.

The guard rails along the highway prevent cars from veering off the road.