He takes en garde before the duel.

On guard! Ready? Go!

The guard dog protects the property.

The bodyguard protected the president vigilantly.

He was walking slowly, keeping an eye on his phone.

The quartermaster is responsible for managing the supplies.

The gamekeeper watches over the forest and protects the wildlife.

The mudguard of my bicycle is very effective.

The pantry is full of supplies for the winter.

She is always on guard to protect her family.